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Formula: CaCO3, Cobaltoan Calcite: (Ca,Co)CO3,
Manganoan Calcite: (Ca,Mn)CO3
Mineral class: carbonates Crystal system: hexagonal Mohs scale: 3 Density (g/cm3): 2.71 Refractive index: 1.486 - 1.658 Cleavage: perfect Colors: colorless, white, grey, yellow, greenish. Other colors come from included minerals. Transparency: transparent - opaque Luster: vitreous Fluorescence: SW and LW UV: different colors Pleochroism: - Largest crystal: 700 cm? Deposits: worldwide Discovery: ? 1st Description: 1879 (Irby) Name: from the Latin word "calx" (Lime) |
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Calcite Mineral
Size: 13.4 x 10.5 x 6.5 cm Origin: Iraí / Alto Uruguai Region / Rio Grande do Sul / Brazil Photo by kind permission of © www.irocks.com |
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Calcite Mineral in MW UV-Light
Size: 5.5 x 5.0 x 4.0 cm Origin: San Giovanni Mine / Iglesias / Sardinia / Italy Photo by kind permission of © www.bestminerals.com |
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Calcite Mineral
Size: 4.5 x 4.4 x 4.2 cm Origin: Red Dome Mine / Chillagoe / Queensland / Australia Photo by kind permission of © www.irocks.com |
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Calcite
Weight: 3.04 ct Origin: Chittenango Falls / New York / USA Photo by kind permission of © Darlene Cobler |
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Calcite Mineral
Size: 5.6 x 4.5 x 3.6 cm Origin: Elmwood Mine / Carthage / Smith County / Tennessee / USA Photo by kind permission of © www.minclassics.com |
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Calcite
Size: 2.91 x 2.91 x 2.06 cm Weight: 94.74 ct Origin: Kazakhstan Photo by kind permission of © www.djraregems.com |
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Calcite Mineral
Size: 13.5 x 15.8 cm Origin: Mid Continent Mine / Treece / Tri-State Distr. / Cherokee County / Kansas / USA Photo by kind permission of © www.exceptionalminerals.com |
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Calcite Mineral
Size: 4.7 x 3.2 x 2.0 cm Origin: Daye County / Huangshi / Hubei / China Photo by kind permission of © www.irocks.com |
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Calcite Mineral
Size: 9.0 x 5.8 x 3.5 cm Origin: Elmwood Mine / Smith County / Tennessee / USA Photo by kind permission of © www.irocks.com |
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Calcite
Size: 0.85 x 0.60 cm Weight: 1.27 ct Origin: former Yugoslavia Photo by kind permission of © www.kox-gems.com |
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Calcite Mineral
Size: 2.0 x 0.9 x 0.6 cm Origin: Zagi Mt. / Khyber Agency / FATA / Pakistan Photo by kind permission of © www.kqminerals.com |
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Calcite
Weight: 2.24 ct Origin: Merelani / Arusha / Tanzania Photo by kind permission of © www.steveperrygems.com |
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Calcite
Size: 1.11 x 0.71 cm Weight: 2.67 ct Origin: Brazil Photo by kind permission of © www.irocks.com |
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Calcite Mineral
Length of the crystal: almost 4 cm Origin: Berry Materials Quarry / North Vernon / Indiana / USA Photo by kind permission of © www.madmineralz.com |
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Calcite Rainbow
Size: 1.2 x 1.1 x 0.7 cm Weight: 6.30 ct Origin: Chihuahua / Mexico Photo by kind permission of © www.lucianabarbosa.com |
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Calcite Mineral (Co)
Size: 5.3 x 5.0 x 3.9 cm Origin: Frizington / Cumbria / England Photo by kind permission of © www.irocks.com |
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Calcite Mineral (Mn)
Size: 6.1 x 5.0 x 3.0 cm Origin: Wessels Mine / Hotazel / Northern Cape Province / South Africa Photo by kind permission of © www.irocks.com |
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Calcite Mineral (Co)
Size: 6.6 x 6.6 x 4.6 cm Origin: Schneeberg / Erzgebirge Mts. / Saxony / Germany Photo by kind permission of © www.irocks.com |
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Calcite Mineral (Co)
Size: 5.4 x 4.4 x 3.3 cm Origin: Bou Azzer / Tazenakht / Ouarzazate Prov. / Morocco Photo by kind permission of © www.irocks.com |
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Calcite (Co)
Weight: 0.28 ct Origin: Bou Azzer / Tazenakht / Ouarzazate Prov. / Morocco Photo by kind permission of © Darlene Cobler |
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Calcite Mineral (Co)
Size: 6.5 x 4.0 x 3.0 cm Origin: Aghbar Mine / Bou Azzer / Tazenakht / Ouarzazate Prov. / Morocco Photo by kind permission of © www.fabreminerals.com |
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Calcite (Co)
Weight: 0.51 ct Origin: Solita Mine / Lerida / Catalonia / Spain Photo by kind permission of © www.lucianabarbosa.com |
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Calcite Mineral (Co)
Size: 10.0 x 7.8 x 4.6 cm Origin: Aghbar Mine / Bou Azzer / Tazenakht / Ouarzazate Prov. / Morocco Photo by kind permission of © www.irocks.com |
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Calcite (Co)
Size: 1.05 x 0.81 cm Weight: 2.16 ct Origin: Parmea / Spain Photo by kind permission of © www.irocks.com |
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Calcite Mineral
Size: 9.2 x 5.5 x 3.5 cm Origin: Jiepaiyu Mine / Shimen County / Changde / Hunan / China Photo by kind permission of © www.chinesefineminerals.com |
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Calcite Mineral
Size: 14 x 9 cm Origin: Ojuela Mine / Mapimi / Durango / Mexico Photo by kind permission of © www.douglassminerals.com |
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