The mineral group "Garnet" consists of several varieties:
Pyralspites (Al): Almandine, Pyrope, Spessartine, and Ugrandites (Ca): Andradite, Grossular, Uvarovite. These pure "end-members" of the garnet group can be mixed (e.g. grandite or rhodolite) or get their color from traces of elements (e.g. demantoid). |
Formula Almandine:
Fe32+Al2(SiO4)3
Almandien, Almandin, Almandina, Almandinai, Almandino, Almandite, Almandyn, Альмандин, אלמנדין, アルマンディン, 알만다인, แอลมันไดต์, 鐵鋁石榴子石 Mineral class: silicates Crystal system: cubic Mohs scale: 6.5 - 7.5 Density (g/cm3): 4,2 Refractive index: 1.760 - 1.830 Colors: red, brown-red, violet, black Fluorescence: - Pleochroism: - Largest Almandine: 1 m? Deposits: worldwide Name: from the ancient Roman town "Alabanda" in Turkey |
Almandine Mineral
Origin: Serrote Redondo / Pedra Lavrada / Paraiba / Brazil Photo by kind permission of © www.minerals-online.de |
Almandine Mineral
Origin: Simplon Tunnel / Switzerland - Italy Photo by kind permission of © www.irocks.com |
Almandine
Size: 0.89 x 0.69 cm Weight: 2.89 ct Origin: Tanzania Photo by kind permission of © www.rarestone.com |
Almandine
Weight: 4.89 ct Origin: Adams Peak / Sri Lanka Photo by kind permission of © www.wildfishgems.com |
Almandine
Size: 1.07 x 0.8 x 0.49 cm Weight: 4.04 ct Origin: Koslanda / Sri Lanka Photo by kind permission of © www.wildfishgems.com |
Formula Andradite:
Ca3Fe23+(SiO4)3
Andradiet, Andradiitti, Andradit, Andradita, Andradyt, Андрадит, אנדרדיט, アンドラダイト, 앤드 라다이 트, 鈣鐵榴石 Mineral class: silicates Crystal system: isometric Mohs scale: 6.5 - 7.5 Density (g/cm3): 3.8 - 3.9 Refractive index: 1.86 - 1.95 Colors: yellow, green, red, brown, black Fluorescence: - Pleochroism: - Largest Andradite: 5 cm? Deposits: worldwide Name: in honor of the Brazilian mineralogist J.B. de Andrada e Silva (1763-1838) |
Andradite Mineral
Origin: Avissalos / Seriphos Island / Greece Photo by kind permission of © www.minerals-online.de |
Andradite Mineral
Size: 1.1 cm Origin: Sonora / Mexico Photo: Jeff Scovil, by kind permission of © www.palagems.com |
Andradite
Size: 1.77 x 1.49 x 1.06 cm Weight: 21.40 ct Origin: Mexico Photo by kind permission of © www.palagems.com |
Andradite Mineral
Size: 1.07 x 0.96 x 0.61 cm Origin: Tenkawa / Yoshino Distr. / Nara Pref. / Japan Photo by kind permission of © www.civilminerals.com |
Andradite Mineral
Size: 4.6 x 3.3 x 1.9 cm Origin: Stanley Butte / Graham County / Arizona / USA Photo by kind permission of © www.earthstreas.com |
Andradite Mineral
Origin: Val Malenco / Sondria / Lombardy / Italy Photo by kind permission of © www.exceptionalminerals.com |
Andradite
Size: 0.87 x 0.67 x 0.5 cm Weight: 2.83 ct Origin: Umba Valley / Tanzania Photo by kind permission of © www.wildfishgems.com |
Demantoid Formula:
Ca3Fe23+(SiO4)3 with appr. 0.02 - 0.13%
Cr2O3 as green chromophore
Démantoïde, Demantóide, Demantoidi, Демантоид, დემანტოიდი, 綠色的翠榴石, 취석류석, デマントイドガーネット Mineral class: silicates Crystal system: cubic Mohs scale: 6.5 - 7 Density (g/cm3): 3.84 - 3.85 Refractive-Index: 1.880 - 1.889 Dispersion: 0.057 Colors: green (in variations) Transparency: transparent Luster: vitreous - greasy? Fluorescence: - Pleochroism: - Largest faceted demantoid: 10.4 ct (Smithsonian Institute / USA) Deposits: Canada, Germany, Iran, Italy, Mexico, Russia, Slovakia, Spain, Switzerland, Tajikistan, USA Discovery: 1868 1st Description: ? Name: "like a diamond" |
Horsetail Inclusions
Sheafs of byssolite are typical for Russian demantoids Size: 1.01 x 0.84 x 0.66 cm Weight: 4.24 ct Origin: Russia Photo by kind permission of © www.palagems.com |
Dispersion
Size: 0.94 x 0.58 cm Weight: 3.51 ct Origin: Russia Photos: Mia Dixon and Jason Stephenson, by kind permission of © www.palagems.com |
Demantoid Russia
Size: 0.81 x 0.68 x 0.48 cm Weight: 2.13 ct Origin: Russia Photo by kind permission of © www.palagems.com |
Demantoid Russia
Size: 0.88 x 0.62 x 0.41 cm Weight: 1.88 ct Origin: Russia Photo by kind permission of © www.palagems.com |
Demantoid Ring Russia
Demantoid: 1.67 ct, 0.80 x 0.66 cm, Russia Diamonds: 36, total 0.38 ct Gold: 18K White gold Photo by kind permission of © www.africagems.com |
Demantoid Russia
Weight: 1.30 ct Origin: Telyanskai River / Urals / Russia Photo by kind permission of © www.irocks.com |
Demantoid Russia
Size: 0.73 x 0.60 cm Weight: 1.27 ct Origin: Russia Photo by kind permission of © www.thegemtrader.com |
Demantoid Russia
Size: 0.58 x 0.50 cm Weight: 0.93 ct Origin: Russia Photo by kind permission of © www.thegemtrader.com |
Demantoid Mineral Iran
Size: 2.4 x 2.1 x 2.2 cm Origin: Soghan / Baft Distr. / Kerman Prov. / Iran Photo by kind permission of © www.pegmatite.ru |
Demantoid Mineral Iran
Size: 1.6 x 0.8 x 1.0 cm Origin: Soghan / Baft Distr. / Kerman Prov. / Iran Photo by kind permission of © www.pegmatite.ru |
Demantoid Iran
Size: 0.4 x 0.4 x 0.3 cm Weight: 0.45 ct Origin: Soghan / Kerman Prov. / Iran Photo by kind permission of © www.lucianabarbosa.com |
Demantoid Mineral Iran
Size: 0.7 x 0.5 x 0.5 cm Origin: Kerman Prov. / Iran Photo by kind permission of © www.kqminerals.com |
Demantoid Pakistan
Weight: 0.54 ct Origin: Pakistan Photo by kind permission of © www.multicolour.com |
Demantoid Pakistan
Weight: 0.79 ct Origin: Pakistan Photo by kind permission of © www.multicolour.com |
Demantoid Mineral Namibia
Size: 7.9 x 6.5 x 7.0 cm Origin: Tubussis Farm / Karibib Distr. / Erongo Mts. / Namibia Photo by kind permission of © www.pegmatite.ru |
Demantoid Namibia
Size: 0.88 x 0.85 x 0.55 cm Weight: 2.95 ct Origin: Erongo Mts. / Namibia Photo by kind permission of © www.1001edelstein.de |
Demantoid Namibia
Size: 0.99 x 0.82 x 0.50 cm Weight: 3.45 ct Origin: Erongo Mts. / Namibia Photo by kind permission of © www.americanthai.com |
Demantoid Namibia
Size: 0.8 x 0.7 x 0.5 cm Weight: 1.85 ct Origin: Namibia Photo by kind permission of © JewelsRoughGems |
Demantoid Namibia
Size: 0.64 x 0.64 x 0.49 cm Weight: 1.68 ct Origin: Namibia Photo by kind permission of © wagner-edelsteine.de |
Demantoid Namibia
Size: 1.35 x 1.21 x 0.71 cm Weight: 7.75 ct Origin: Erongo Mts. / Namibia Photo by kind permission of © www.1001edelstein.de |
Demantoid Mineral Namibia
Origin: Tubussis Farm / Karibib Distr. / Erongo Mts. / Namibia Photo by kind permission of © www.exceptionalminerals.com |
Demantoid Namibia
Size: 0.61 x 0.61 x 0.4 cm Weight: 1.05 ct Origin: Namibia Photo by kind permission of © wagner-edelsteine.de |
Demantoid Mineral Namibia
Size: appr. 2 cm Origin: Erongo Mts. / Namibia Photo by kind permission of © www.erongo.50megs.com |
Demantoid Namibia
Weight: 1.08 ct Origin: Erongo Mts. / Namibia Photo by kind permission of © www.multicolour.com |
Demantoid Namibia
Size: 0.66 x 0.64 x 0.38 cm Weight: 1.24 ct Origin: Namibia Photo by kind permission of © www.wildfishgems.com |
Demantoid Mineral Canada
Size: 7.3 x 5.7 x 2.3 cm Origin: Jeffrey Quarry / Asbestos / Québec / Canada Photo by kind permission of © www.fabreminerals.com |
Demantoid Mineral Canada
Size: 3.1 x 1.4 x 2 cm Origin: Jeffrey Quarry / Asbestos / Québec / Canada Photo by kind permission of © www.fabreminerals.com |
Demantoid Mineral Canada
Origin: Thetford / Québec / Canada Photo by kind permission of © www.irocks.com |
Demantoid Canada
Weight: 0.1 ct Origin: Black Lake / Québec / Canada Photo by kind permission of © www.rocklogic.biz |
Demantoid Mineral Mexico
Origin: Las Vigas / Veracruz / Mexico Photo by kind permission of © www.mineralman.com |
Demantoid Mineral Afghanistan
Size: 12.0 x 4.0 x 5.8 cm Origin: Afghanistan / Ghazni Prov. Photo by kind permission of © www.pegmatite.ru |
Demantoid Mineral Tajikistan
Size: 0.50 x 0.72 x 0.37 cm Weight: 1.18 ct Origin: Tajikistan Photo by kind permission of © www.wildfishgems.com |
Demantoid Mineral Italy
Size: 7.0 x 4.5 x 2.0 cm Origin: Malenco Valley / Sondrio Prov. / Lombardy / Italy Photo by kind permission of © www.pegmatite.ru |
Demantoid Mineral Madagascar
Size: 5.2 x 3.0 x 2.6 cm Origin: Antetezambato / Ambanja Distr. / Antsiranana Prov. / Madagascar Photo by kind permission of © www.irocks.com |
Demantoid Mineral Madagascar
Size: 1.9 x 1.7 x 1.5 cm Origin: Antetezambato / Ambanja Distr. / Antsiranana Prov. / Madagascar Photo by kind permission of © www.irocks.com |
Demantoid Madagascar
Size: 0.8 x 0.8 x 0.43 cm Weight: 2.03 ct Origin: Madagascar Photo by kind permission of © www.gemfrance.com |
Demantoid Mineral Madagascar
Size: 2.5 x 2.3 x 1.6 cm Origin: Ambanja Distr. / Antsiranana Prov. / Madagascar Photo by kind permission of © www.fabreminerals.com |
Demantoid Madagascar
Size: 0.68 x 0.68 x 0.32 cm Weight: 1.11 ct Origin: Madagascar Photo by kind permission of © www.gemfrance.com |
Demantoid Madagascar
Size: 0.72 x 0.82 x 0.52 cm Weight: 2.39 ct Origin: Antetezambato / Ambanja Distr. / Antsiranana Prov. / Madagascar Photo by kind permission of © www.wildfishgems.com |
Demantoid Madagascar
Size: 0.59 x 0.59 x 0.35 cm Weight: 0.82 ct Origin: Madagascar Photo by kind permission of © www.gemfrance.com |
Demantoid Mineral Madagascar
Size: 4.0 x 2.7 x 1.8 cm Origin: Antetezambato / Ambanja Distr. / Antsiranana Prov. / Madagascar Photo by kind permission of © www.irocks.com |
Demantoid Madagascar
Size: 0.70 x 0.54 x 0.38 cm Weight: 1.22 ct Origin: Madagascar Photo by kind permission of © www.gemaholics.com |
Formula Grossular:
Ca3Al2(SiO4)3
Grossulaar, Grossulaari, Grossulaire, Grossularia, Grosularia, Grossularite, Grosuliarai, Гроссуляр, גרוסולר, グロッシュラー, 그로 슐라, กรอสซูลาไรต์, 鈣鋁榴石 Mineral class: silicates Crystal system: cubic Mohs scale: 6.5 - 7.5 Density (g/cm3): 3.42 - 3.72 Refractive-Index: 1.734 - 1.759 Colors: colorless, grey, yellow, brown, green Fluorescence: - Pleochroism: - Largest Grossular: 15 cm? Deposits: worldwide Name: from the gooseberry plant "Ribes Grossularia" |
Grossular Mineral
Size: 4.0 x 2.7 x 2.5 cm Origin: Jeffrey Quarry / Asbestos / Québec / Canada Photo by kind permission of © www.earthstreas.com |
Grossular Mineral
Size: 2.6 x 2.4 x 1.8 cm Origin: Liaoning Prov. / China Photo by kind permission of © www.lucianabarbosa.com |
Grossular
Size: 1.81 x 1.33 x 0.85 cm Weight: 15.30 ct Origin: Umba Valley / Arusha / Simanjiro Distr. / Tanzania Photo by kind permission of © www.palagems.com |
Grossular Mineral
Size: 1.2 x 1.2 x 1.1 cm Origin: Jeffrey Quarry / Asbestos / Québec / Canada Photo by kind permission of © www.irocks.com |
Grossular
Size: 1.80 x 1.49 x 1.08 cm Weight: 23.21 ct Origin: Sri Lanka Photo by kind permission of © www.palagems.com |
Grossular
Weight: 4.41 ct Origin: Jeffrey Quarry / Asbestos / Québec / Canada Photo by kind permission of © www.thegemtrader.com |
Grossular Mineral
Origin: Jeffrey Quarry / Asbestos / Québec / Canada Photo by kind permission of © www.exceptionalminerals.com |
Grossular
Weight: 0.34 ct Origin: Jeffrey Quarry / Asbestos / Québec / Canada Photo by kind permission of © www.irocks.com |
Grossular
Size: 1.2 x 1.05 x 0.68 cm Weight: 6.83 ct Origin: Tanzania Photo by kind permission of © www.palagems.com |
Grossular Mineral
Origin: Jaco-See / Sierra de la Cruz / Coahuila / Mexico Photo by kind permission of © www.irocks.com |
Grossular Mineral
Size: 5.2 x 4.4 x 3.3 cm Origin: Carboneri / Pellice Valley / Torino Prov. / Piedmont Reg. / Italy Photo by kind permission of © www.irocks.com |
Grossular Mineral
Origin: Eden Mills / Vermont / USA Photo by kind permission of © www.TreasureMountainMining.com |
Grossular Mineral
Size: 1.9 x 1.9 x 1.4 cm Origin: Tepetates / San Luis Potosi / Mexico Photo by kind permission of © www.irocks.com |
Grossular Mineral
Origin: Jeffrey Quarry / Asbestos / Québec / Canada Photo by kind permission of © www.irocks.com |
Grossular
Weight: 1.17 ct Origin: Jeffrey Quarry / Asbestos / Québec / Canada Photo by kind permission of © www.rocklogic.biz |
Grossular
Size: 0.83 x 0.55 cm Origin: East Africa Weight: 1.09 ct Photo by kind permission of © www.thegemtrader.com |
Grossular
Weight: 1.44 ct Size: 0.79 x 0.51 x 0.43 cm Origin: Mali Photo by kind permission of © www.gemfrance.com |
Grossular
Weight: 1.07 ct Size: 0.65 x 0.53 x 0.41 cm Origin: Mali Photo by kind permission of © www.gemfrance.com |
Grossular Mineral
Size: 3.5 x 2.3 x 1.5 cm Origin: Russia Photo by kind permission of © www.pegmatite.ru |
Chrome Grossular
Weight: 3.29 ct Origin: Kenya, Tanzania border region Photo by kind permission of © www.americanthai.com |
Chrome Grossular
Weight: 13.14 ct Origin: East Africa Photo by kind permission of © www.multicolour.com |
Chrome Grossular Ring
Chrome Grossular: 1.92 ct; 0.8 x 0.62 cm; Tanzania Diamonds: 52; total 0.18 ct Gold: 18K White Gold Photo by kind permission of © www.davidwein.com |
Chrome Grossular Mineral
Origin: Taita Hills / Voi / Taita-Taveta Distr. / Coast Prov. / Kenya Photo by kind permission of © www.irocks.com |
Chrome Grossular
Weight: 4.31 ct Origin: East Africa Photo by kind permission of © www.multicolour.com |
Chrome Grossular "Mint" Mineral
Size: 1.2 x 0.87 x 0.75 cm Weight: 5.84 ct Origin: Merelani Hills / Arusha / Simanjiro Distr. / Tanzania Photo by kind permission of © www.earthstreas.com |
Chrome Grossular "Mint"
Size: 1.46 x 1.11 x 0.89 cm Origin: Merelani Hills / Arusha / Simanjiro Distr. / Tanzania Weight: 12.04 ct Photo by kind permission of © www.palagems.com |
Chrome Grossular "Mint" Mineral
Origin: Black Lake / Québec / Canada Photo by kind permission of © www.exceptionalminerals.com |
Chrome Grossular "Mint" Mineral
Size: 4.0 x 3.8 x 2.8 cm Origin: Merelani Mts. / Arusha / Simanjiro Distr. / Tanzania Photo by kind permission of © www.pegmatite.ru |
Chrome Grossular "Mint" Ring
Chrome Grossular: 4.59 ct, 1.34 x 0.82 cm, Tanzania Diamonds: Total 1.27 ct Gold: 18K White gold Photo by kind permission of © www.africagems.com |
Chrome Grossular "Mint" Mineral
Origin: Merelani Hills / Arusha / Simanjiro Distr. / Tanzania Photo by kind permission of © www.irocks.com |
Chrome Grossular "Mint"
Size: 0.89 x 0.75 x 0.47 cm Weight: 2.46 ct Origin: Kenya Photo by kind permission of © www.wildfishgems.com |
Chrome Grossular "Mint" Ring
Chrome Grossular: 1.87 ct; 0.74 x 0.69 cm; Merelani / Tanzania Diamonds: 6; total 0.06 ct Gold: 18K White Gold Photo by kind permission of © www.davidwein.com |
Chrome Grossular "Mint" Mineral
Size: 2.4 x 1.7 x 0.4 cm Origin: Jeffrey Quarry / Asbestos / Québec / Canada Photo by kind permission of © www.kqminerals.com |
Chrome Grossular "Mint"
Size: 0.78 x 0.57 cm Origin: Merelani Mts. / Arusha / Simanjiro Distr. / Tanzania Weight: 1.44 ct Photo by kind permission of © www.thegemtrader.com |
Chrome Grossular "Mint" bicolor
Size: 0.77 x 0.50 x 0.38 cm Weight: 1.81 ct Origin: Kenya Photo by kind permission of © www.wagner-edelsteine.de |
Hydrogrossular "Transvaal Jade"
Size: 2.8 x 0.7 x 0.4 cm Weight: 6.70 ct Origin: Transvaal / South Africa Photo by kind permission of © www.lucianabarbosa.com |
Hydrogrossular "Transvaal Jade"
Size: 2.2 x 0.6 x 0.2 cm Weight: 2.80 ct Origin: Transvaal / South Africa Photo by kind permission of © www.lucianabarbosa.com |
Formula Hessonite: (Grossular variety)
Ca3Al2(SiO4)3
Essonite, Hessonit, Hesonita, Гессониты, 及肉桂石 Mineral class: silicates Crystal system: cubic Mohs scale: 6.5 - 7.5 Density (g/cm3): 3.42 - 3.72 Refractive-Index: 1.742 - 1.748 Colors: orange, red Fluorescence: - Pleochroism: - Largest cutted Hessonite: >61.5 ct? Deposits: worldwide Name: from the Greek word "hesson" (inferior) |
Hessonite Mineral
Size: 7.1 x 4.5 x 2.2 cm Origin: Jeffrey Quarry / Asbestos / Québec / Canada Photo by kind permission of © www.pegmatite.ru |
Hessonite
Size: 1.00 x 0.68 cm Weight: 2.83 ct Origin: Québec / Canada Photo by kind permission of © www.rarestone.com |
Hessonite Mineral
Origin: Haramosh Mts. / Gilgit-Baltistan / Pakistan Photo by kind permission of © www.irocks.com |
Hessonite Mineral
Origin: Jeffrey Quarry / Asbestos / Québec / Canada Photo by kind permission of © www.exceptionalminerals.com |
Hessonite
Size: 2.02 x 1.58 x 1.20 cm Weight: 35.02 ct Origin: Sri Lanka Photo by kind permission of © www.gemaholics.com |
Hessonite Pendant
Hessonite: 50.93 ct, 2.09 x 1.95 x 1.3 cm, Sri Lanka Diamonds: 110, total 1.02 ct Gold: 18K White and yellow gold Photo by kind permission of © www.africagems.com |
Formula Malaya Garnet:
Ca3Al2(SiO4)3
Malaya-Granat Mineral class: silicates Crystal system: cubic Mohs scale: 6.5 - 7.5 Density (g/cm3): 3.42 - 3.72 Refractive-Index: 1.74 - 1.78 Colors: orange, red, violet, brown Fluorescence: - Pleochroism: - Largest Malaya Garnet: ? Deposits: worldwide |
Malaya Garnet
Size: 0.6 x 0.6 x 0.4 cm Weight: 1.20 ct Origin: Umba Valley / Tanga Region / Tanzania Photo by kind permission of © www.lucianabarbosa.com |
Malaya Garnet
Size: 0.97 cm Weight: 3.94 ct Origin: Mozambique Photo by kind permission of © www.rarestone.com |
Malaya Garnet
Size: 1.58 x 1.19 x 0.82 cm Weight: 13.38 ct Origin: Tanzania Photo by kind permission of © www.palagems.com |
Malaya Garnet
Size: 1.76 x 1.25 x 0.53 cm Weight: 13.75 ct Origin: Tanzania Photo by kind permission of © www.djraregems.com |
Malaya Garnet Ring
Size: 0.66 x 0.41 x 0.34 cm Weight: 1.07 ct Sapphires: 14, total 0.15 ct Gold: 14K, 1.8 g Photo by kind permission of © www.bkkgemstones.com |
Malaya Garnet
Size: 0.95 x 0.95 x 0.53 cm Weight: 3.85 ct Origin: Tanzania Photo by kind permission of © www.palagems.com |
Malaya Garnet Ring
Weight: 4.39 ct Diamonds: total 0.6 ct Gold: 18K White gold Photo by kind permission of © www.collectorfinejewelry.com |
Malaya Garnet
Size: 0.76 x 0.70 x 0.47 cm Weight: 1.98 ct Origin: East Africa Photo by kind permission of © www.multicolour.com |
Malaya Garnet
Size: 0.88 x 0.68 x 0.46 cm Weight: 2.16 ct Origin: Tanzania Photo by kind permission of © www.multicolour.com |
Malaya Garnet
Weight: 29.37 ct Origin: East Africa Photo by kind permission of © www.multicolour.com |
Malaya Garnet
Size: 0,86 x 0.78 x 0.66 cm Weight: 3.68 ct Origin: East Africa Photo by kind permission of © www.multicolour.com |
Imperial Malaya Garnet
Weight: 1.97 ct Origin: Bekily / Madagascar Photo by kind permission of © www.americanthai.com |
Formula Mali Garnet:
(Grossular variety, Chrome Grossular + Andradite)
Ca3Al2(SiO4)3
Mali-Granat Mineral class: silicates Crystal system: cubic Mohs scale: 6.5 - 7.5 Density (g/cm3): 3.42 - 3.72 Refractive-Index: 1.760 - 1.780 ? Colors: yellowish, brownish, greenish Fluorescence: - Pleochroism: - Largest Mali Garnet: ? Deposits: Kenya, Madagascar, Mali, Tanzania |
Mali Garnet
Size: 1.19 x 1.18 x 0.6 cm Weight: 5.06 ct Origin: Kayes / Mali Photo by kind permission of © www.americanthai.com |
Mali Garnet
Size: 1.30 x 1.08 x 0.72 cm Weight: 6.87 ct Origin: Mali Photo by kind permission of © www.multicolour.com |
Mali Garnet
Size: 0.51 x 0.44 x 0.35 cm Weight: 0.69 ct Origin: Mali Photo by kind permission of © www.wagner-edelsteine.de |
Mali Garnet
Size: 1.16 x 0.84 x 0.37 cm Weight: 3.71 ct Origin: Mali Photo by kind permission of © www.multicolour.com |
Mali Garnet Ring
Mali Garnet: 2.55 ct, 0.94 x 0.77 cm, Mali Diamonds: 34, total 0.34 ct; 2, total 0.06 ct Gold: 18K White gold Photo by kind permission of © www.davidwein.com |
Mali Garnet
Size: 1.25 x 0.7 x 0.71 cm Weight: 6.04 ct Origin: Kayes / Mali Photo by kind permission of © www.americanthai.com |
Formula Mandarin Garnet: (Spessartine variety)
Mn32+Al2[SiO4]3
Granato mandarino, Mandarin-Granat, Мандарин Гранат, अकर्मण्य गार्नेट, 맨 더린 가닛, 即馬達加斯加石榴石 Mineral class: silicates Crystal system: cubic Mohs scale: 6.5 - 7.5 Density (g/cm3): 4.12 - 4.32 Refractive-Index: 1.78 - 1.81 Colors: orange-red Fluorescence: - Pleochroism: - Largest Mandarin Garnet: ? Deposits: Namibia, Sri Lanka, Myanmar, Madagascar, Nigeria, Brazil, Australia, Kenya, Tanzania |
Mandarin Garnet
Garnet: 2.47 ct; Namibia Diamonds: total 1.4 ct Gold: 18K White gold Photo by kind permission of © www.awesomegems.com |
Mandarin Garnet Ring
Mandarin Garnet: 7.03 ct Diamonds Gold: 18K White gold Photo by kind permission of © www.bkkgemstones.com |
Mandarin Garnet
Size: 0.81 x 0.48 x 0.35 cm Weight: 1.85 ct Origin: Tanzania Photo by kind permission of © www.wagner-edelsteine.de |
Formula Melanite:
Ca3Fe23+[SiO4]3
Melaniitti, Melanit, Melanitas, Mélanite, Melantite, Меланит, 及黑色的黑榴石 Mineral class: silicates Crystal system: cubic Mohs scale: 6.5 - 7.5 Density (g/cm3): 3.7 - 4.1 Refractive-Index: 1.89 - 1.94 Colors: black Fluorescence: - Pleochroism: - Largest Melanite: ? Deposits: worldwide Name: from the Greek word "mela" (black) |
Melanite Mineral
Origin: New Idria District / San Benito County / California / USA Photo by kind permission of © www.irocks.com |
Formula Pyrope:
Mg3Al2[SiO4]3
Pirop, Piropai, Piropo, Püroop, Pyroop, Pyrooppi, Pyrop, Пироп, ไพโรป, パイロープ, 分別為紅榴石 Mineral class: silicates Crystal system: cubic Mohs scale: 7.5 Density (g/cm3): 3.65 - 3.84 Refractive-Index: 1.730 - 1.766 Colors: red, brownish Fluorescence: - Pleochroism: - Largest Pyrope: 30 cm (Val Gilba / Dora Maira / Piemont / Italy) Deposits: worldwide Name: from the Greek word "pyro" (fire) |
Pyrope
Size: 0.85 x 0.59 x 0.29 cm Weight: 1.06 ct Origin: Ella / Sri Lanka Photo by kind permission of © www.wildfishgems.com |
Pyrope
Size: 1.84 x 1.69 x 1.07 cm Weight: 28.12 ct Origin: Sri Lanka Photo by kind permission of © www.palagems.com |
Pyrope Mineral
Size: 2.0 x 1.5 x 0.6 cm Origin: Cuamba / Niassa Prov. / Mozambique Photo by kind permission of © www.lucianabarbosa.com |
Pyrope
Size: 2.0 x 1.2 x 0.6 cm Weight: 21.15 ct Origin: Minas Gerais / Brazil Photo by kind permission of © www.lucianabarbosa.com |
Formula Rhodolite:
Mg3Al2[SiO4]3
Rhodolita, Rhodolith, Rodoliitti, Rodolitas, Rodolite, родолит, โกเมนสีม่วงหรือโรโดไลท์, 로돌 라이트, 被稱為玫瑰榴石 Mineral class: silicates Crystal system: cubic Mohs scale: 7.5 Density (g/cm3): 3.65 - 3.84 Refractive-Index: 1.745 - 1.760 Colors: orange, rose, red Transparency: transparent Luster: vitreous Fluorescence: - Pleochroism: - Largest Rhodolite: ? Deposits: worldwide Name: a combination of the Greek words "rhódon" (rose), and "lithos" (stone) |
Rhodolite Ring
Rhodolite: 6.12 ct, 1.12 x 1.01 cm, Tanzania Diamonds: 112, total 0.48 ct Gold: 18K White and yellow gold Photo by kind permission of © www.africagems.com |
Rhodolite
Weight: 3.29 ct Size: 1.0 x 0.81 x 0.5 cm Origin: Kenya Photo by kind permission of © www.gemfrance.com |
Rhodolite Ring
Rhodolite: 12.12 ct, 1.52 x 1.15 cm, Tanzania Diamonds: 58, total 0.29 ct; 18, total 0.21 ct Gold: 18K White gold Photo by kind permission of © www.davidwein.com |
Formula Spessartine:
Mn32+Al2[SiO4]3
Espessartite, Spesartinai, Spessartiet, Spessartiin, Spessartiini, Spessartin, Spessartina, Spessartite, Spessartyn, Спессартин, スペッサルティン, 錳鋁石榴石 Mineral class: silicates Crystal system: cubic Mohs scale: 6.5 - 7.5 Density (g/cm3): 4.12 - 4.32 Refractive-Index: 1.790 - 1.820 Colors: red, orange, brownish Fluorescence: - Pleochroism: - Largest Spessartine: ? Deposits: worldwide Name: from the German Spessart Mts. |
Spessartine Mineral
Origin: Shengus / Gilgit-Baltistan / Pakistan Photo by kind permission of © www.irocks.com |
Spessartine Mineral
Origin: Nagar / Hunza Valley / Gilgit-Baltistan / Pakistan Photo by kind permission of © www.irocks.com |
Spessartine Mineral
Origin: Navegadora Mine / Minas Gerais / Brazil Photo by kind permission of © www.mineralman.com |
Spessartine Mineral
Origin: Marienfluss / Opuwo Distr. / Kumene / Namibia Photo by kind permission of © www.irocks.com |
Spessartine Mineral
Origin: Marienfluss / Opuwo Distr. / Kumene / Namibia Photo by kind permission of © www.minerals-online.de |
Spessartine
Weight: 0.86 ct Origin: Amelia County / Virginia / USA Photo by kind permission of © www.irocks.com |
Spessartine Mineral
Size: 2.5 x 1.5 x 1 cm Origin: Loliondo / Arusha / Tanzania Photo by kind permission of © www.webmineralshop.com |
Spessartine
Size: 0.81 cm Weight: 3.30 ct Origin: Loliondo / Tanzania Photo by kind permission of © www.thegemtrader.com |
Spessartine Ring
Spessartine: 3.34 ct Diamonds: total 1.59 ct Gold: 14K Yellow gold Photo by kind permission of © www.collectorfinejewelry.com |
Spessartine Mineral
Size: 1.15 x 1.13 x 0.97 cm Origin: Nani / Loliondo / Arusha / Tanzania Photo by kind permission of © www.mineralman.com |
Spessartine
Weight: 13.32 ct Size: 1.34 x 1.28 x 0.88 cm Origin: Nigeria Photo by kind permission of © www.palagems.com |
Spessartine Ring
Spessartine: 6.16 ct, 1.06 x 0.88 cm, Nigeria Diamonds: 70, total 0.46 ct Gold: 18K White and yellow gold Photo by kind permission of © www.africagems.com |
Spessartine
Weight: 2.87 ct Size: 0.81 x 0.63 x 0.5 cm Origin: Nigeria Photo by kind permission of © www.gemfrance.com |
Spessartine Mineral
Origin: Nyet / Gilgit-Baltistan / Pakistan Photo by kind permission of © www.irocks.com |
Spessartine Ring
Spessartine: 23.26 ct, 1.72 x 1.40 cm, Nigeria Diamonds: 116, total 0.88 ct Gold: 18K White gold Photo by kind permission of © www.africagems.com |
Spessartine "Umbalite"
Weight: 1.44 ct Origin: Umba Valley / Tanzania Photo by kind permission of © www.steveperrygems.com |
Formula Topazolite:
Ca3Fe23+(SiO4)3
Topatsoliitti, Topazoliet, Topazolith, Топазолит, 黃榴石 Mineral class: silicates Crystal system: cubic Mohs scale: 6.5 - 7 Density (g/cm3): 3.7 - 4.1 Refractive-Index: 1.850 - 1.899 Colors: yellowish Fluorescence: - Pleochroism: - Largest faceted Topazolite: > 20 ct Deposits: worldwide Name: a combination of "topaz" and the Greek word "lithos" (stone) |
Topazolite Mineral
Size: 4 x 3 x 3 cm Origin: San Benito County / California / USA Photo by kind permission of © www.kqminerals.com |
Topazolite Mineral
Size: 6.5 x 3.5 x 2.3 cm Origin: Jeffrey Quarry / Asbestos / Québec / Canada Photo by kind permission of © www.pegmatite.ru |
Topazolite Mineral
Size: 6.1 x 4.5 x 3.2 cm Origin: Antetezambato / Ambanja Distr. / Antsiranana Prov. / Madagascar Photo by kind permission of © www.irocks.com |
Topazolite Mineral
Size: 4.6 x 4.1 x 2.9 cm Origin: Antetezambato / Ambanja Distr. / Antsiranana Prov. / Madagascar Photo by kind permission of © www.irocks.com |
Formula Tsavorite (Grossular with traces of
Cr2O3 or / and V2O3):
Ca3Al2(SiO4)3
Tsavoriitti, Tsavorit, 變種有沙弗來石, 綠色石榴石, ツァボライト Mineral class: silicates Crystal system: cubic Mohs scale: 6.5 - 7 Density (g/cm3): 3.60 - 3.68 Refractive-Index: 1.73 - 1.75 Colors: green Fluorescence: - Pleochroism: - Largest clear Tsavorite: 185 g Largest faceted, clear Tsavorite: 325,13 ct Deposits: Merelani Hills / Arusha / Simanjiro Distr. / Tanzania, Taita Hills / Voi / Taita-Taveta Distr. / Coast Prov. / Kenya, Canada, Italy, Mexico, Sri Lanka Discovery: 1967 by Campbell R. Bridges 1st Description: ? Name: from the Tsavo National Park in Kenya where the mineral was discovered |
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Merelani Hills / Arusha / Simanjiro Distr. / Tanzania |
Größere Kartenansicht |
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Taita Hills / Voi / Taita-Taveta Distr. / Coast Prov. / Kenya |
Größere Kartenansicht |
Tsavorite Mineral
Size: 0.76 x 0.64 x 0.60 cm Origin: Merelani Hills / Arusha / Simanjiro Distr. / Tanzania Photo by kind permission of © www.earthstreas.com |
Tsavorite Mineral Nodule / Conglomerate
Size: 9.2 x 5.9 x 4.7 cm Origin: Kasigau Region / Kenya Photo by kind permission of © www.lapigems.com |
Tsavorite Ring
Tsavorite: 3.04 ct; Tanzania Diamonds: 32; total 0.32 ct Gold: 18K White Gold and Yellow Gold Photo by kind permission of © www.bkkgemstones.com |
Formula Uvarovite:
Ca3Cr2(SiO4)3
Uvaroviet, Uvaroviit, Uvaroviitti, Uvarovita, Uvarovitai, Uvarovitas, Uwarovit, Uwarowit, Уваровит, ウヴァロヴァイト, 鈣鉻榴石 Mineral class: silicates Crystal system: cubic Mohs scale: 6.5 - 7 Density (g/cm3): 3.4 - 3.8 Refractive-Index: 1.86 - 1.87 Colors: green Fluorescence: - Pleochroism: - Largest Uvarovite crystal: > 2.5 cm (Finland) Deposits: worldwide, best qualities from Outokumpu Mine / Outokumpu / Itä-Suomen Lääni / Finland and Saranovskii Mine / Sarany / Gornozavodsk Area / Permskaya Oblast / Ural Mts. / Russia Name: ref. to the Russian Count Sergei Semjonowitsch Uvarov, statesman and former president of the Academy of Sciences in Leningrad / Russia |
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Outokumpu Mine / Outokumpu / Itä-Suomen Lääni / Finland |
Größere Kartenansicht |
Uvarovite Mineral
Size: 18.3 x 13.1 x 2.0 cm Origin: Saranovskii Mine / Sarany / Gornozavodsk / Permskaya Oblast / Urals / Russia Photo by kind permission of © www.irocks.com |
Uvarovite Mineral
Origin: Outokumpu / Itä-Suomen Lääni / Finland Photo by kind permission of © www.minerals-online.de |
Uvarovite Mineral
Size: 1.31 x 1.15 x 1.15 cm Origin: Outokumpu Mine / Outokumpu / Itä-Suomen Lääni / Finland Photo by kind permission of © www.civilminerals.com |
Uvarovite
Weight: 0.44 ct Size: 6.4 x 4.5 mm Origin: Outokumpu / Itä-Suomen Lääni / Finland Photo by kind permission of © www.irocks.com |
Uvarovite Mineral
Origin: Mokkivaara Mine / Outokumpu / Itä-Suomen Lääni / Finland Photo by kind permission of © www.fabreminerals.com |
Garnet Cat's Eye and Star
Weight: 1.65 ct Origin: Sri Lanka Photo by kind permission of © www.online-edelstein.de |
Garnet Star
Size: 1.16 x 0.99 cm Weight: 6.44 ct Origin: Idaho / USA Photo by kind permission of © www.irocks.com |
Almandine Garnet Trapiche Mineral
Size: 1.13 x 0.82 x 0.45 cm Weight: 4.18 ct Origin: Tha-Beik-Kyin / west of Mogok / Myanmar Photo by kind permission of © www.crystal-treasure.com |
Garnet color change
Weight: 4.15 ct Origin: Bekily / Madagascar Photo by kind permission of © www.multicolour.com |
Garnet color change
Size: 0.96 x 0.75 x 0.49 cm Weight: 2.35 ct Origin: Chavia / Kenya Photo by kind permission of © www.ajsgem.com |
Garnet color change
Weight: 0.39 ct Origin: Tanzania Photo by kind permission of © www.multicolour.com |
Garnet color change
Size: 0.61 x 0.45 cm Weight: 0.77 ct Origin: Tanzania Photo by kind permission of © www.irocks.com |
Garnet color change
Weight: 0.05 ct Origin: Bekily / Madagascar Photo by kind permission of © www.multicolour.com |
Garnet color change
Weight: 0.49 ct Origin: Bekily / Madagascar Photo by kind permission of © www.multicolour.com |
Garnet color change
Size: 0.93 x 0.51 x 0.41 cm Weight: 1.73 ct Origin: Madagascar Photo by kind permission of © www.ajsgem.com |
Garnet color change
Weight: 1.16 ct Herkunft: Bekily / Madagascar Photo by kind permission of © www.multicolour.com |
Garnet color change
Weight: 1.00 ct Origin: Bekily / Madagascar Photo by kind permission of © www.multicolour.com |
Garnet color change Ring
Garnet: 1.55 ct, 0.77 x 0.71 x 0.41 cm, Bekily / Madagascar Diamonds: 13, total 0.35 ct Gold: 14K White gold Photo by kind permission of © www.davidwein.com |
Garnet color change
Weight: 1.28 ct Origin: Bekily / Madagascar Photo by kind permission of © www.multicolour.com |
Garnet color change
Weight: 4.42 ct Origin: Bekily / Madagascar Photo by kind permission of © www.multicolour.com |
Garnet color change
Weight: 2.81 ct Origin: Bekily / Madagascar Photo by kind permission of © www.americanthai.com |
Garnet color change
Weight: 1.75 ct Origin: Bekily / Madagascar Photo by kind permission of © www.americanthai.com |
Garnet color change
Size: 1.27 x 1.14 x 0.71 cm Weight: 7.65 ct Origin: Chavia / Kenya Photo by kind permission of © www.americanthai.com |
Garnet color change Ring
Garnet: 0.75 ct; 0.61 x 0.47 x 0.3 cm Diamonds: 6; total 0.07 ct Gold: 18K White gold Photo by kind permission of © www.davidwein.com |
Garnet color change
Weight: 1.17 ct Origin: Umba Valley / Tanzania Photo by kind permission of © www.wildfishgems.com |
Garnet color change
Weight: 1.09 ct Origin: East Africa Photo by kind permission of © www.multicolour.com |
Garnet color change
Size: 0.73 x 0.81 x 0.4 cm Weight: 2.32 ct Origin: Sri Lanka Photo by kind permission of © www.bkkgemstones.com |
Garnet color change
Size: 0.89 x 0.65 x 0.57 cm Weight: 2.92 ct Origin: Chavia / Kenya Photo by kind permission of © www.ajsgem.com |
Garnet color change
Size: 1.01 x 0.65 cm Weight: 5.21 ct Origin: Hatton / Sri Lanka Photo by kind permission of © www.wildfishgems.com |
Garnet color change
Weight: 5.03 ct Origin: East Africa Photo by kind permission of © www.thegemtrader.com |
Garnet color change
Weight: 7.07 ct Origin: East Africa Photo by kind permission of © www.multicolour.com |
Garnet color change
Weight: 2.39 ct Origin: Africa Photo by kind permission of © www.wildfishgems.com |
Garnet color change
Size: 0.45 x 0.44 x 0.38 cm Weight: 0.74 ct Origin: Madagascar Photo by kind permission of © www.gemselect.com |
Garnet color change
Size: 0.7 x 0.35 x 0.28 cm Weight: 0.72 ct Origin: Madagascar Photo by kind permission of © www.gemselect.com |
Garnet color change
Size: 0.55 x 0.37 cm Weight: 0.89 ct Origin: Madagascar Photo by kind permission of © www.gemselect.com |
Garnet color change
Weight: 2.87 ct Origin: East Africa Photo by kind permission of © www.multicolour.com |
Garnet color change
Size: 0.76 x 0.53 x 0.41 cm Weight: 1.27 ct Origin: Madagascar Photo by kind permission of © www.gemselect.com |
Garnet color change
Size: 0.73 x 0.51 x 0.39 cm Weight: 1.18 ct Origin: Tanzania Photo by kind permission of © www.gemselect.com |
Garnet color change
Weight: 0.32 ct Origin: Tanzania Photo by kind permission of © www.multicolour.com |