Zoisite

Zoisiet, Zoisiitti, Zoisit, Zoisita, Zoisitas, Zoïsite, Zoisyt, Zoizit, Цоизит, 灰簾石, זואיסיט


Commonly known      rarer (so called collectors stones)      very rare (rarities)      relatively rare organic material


Formula: Ca2Al3(SiO4)3(OH)
Mineral class: silicates
Crystal system: orthorhombic
Mohs scale: 6.5
Density (g/cm3): 3.3
Refractive index: 1.685 - 1.725
Cleavage: different
Colors: colorless, grey, green, rose, red, blue, violet, brown
Luster: vitreous
Fluorescence: -
Pleochroism: see Tanzanite
Largest Zoisite: 10 cm?
Deposits: worldwide
Discovery: 1805
1st Description: 1892
Name: in honor of the discoverer, the Austrian natural scientist Baron Siegmund von Zois (1747-1819), who found it at the Saualpe / Carinthia / Austria

Zoisite Mineral

Size: 2.04 x 0.26 x 0.22 cm

Origin: Pakistan

Photo by kind permission of © Darlene Cobler
Zoisite Mineral

Zoisite Mineral

Size: 1.6 x 0.8 x 0.6 cm

Origin: Alchuri / Shigar Valley / Skardu Distr. / Pakistan

Photo by kind permission of © www.trinityminerals.com
Zoisite Mineral
Zoisite

Weight: 1.40 ct

Origin: Pakistan

Photo by kind permission of © www.rocklogic.biz

Zoisite Mineral

Origin: Merelani Mine / Umba Valley / Arusha / Simanjiro Distr. / Tanzania

Photo by kind permission of © www.irocks.com
Tanzanite Mineral

Zoisite

Size: 2.8 x 0.85 x 0.75 cm

Origin: Merelani / Tanzania

Photo: John McLean, by kind permission of © www.palagems.com
Zoisite Mineral
Zoisite

Weight: 9.47 ct

Origin: Merelani / Tanzania

Photo: John McLean, by kind permission of © www.palagems.com

Zoisite Mineral

Size: 1.52 x 0.73 x 0.48 cm

Origin: Merelani Mine / Umba Valley / Arusha / Simanjiro Distr. / Tanzania

Photo by kind permission of © Darlene Cobler
Zoisite Mineral

Zoisite Mineral

Size: 2.5 x 1.2 x 0.9 cm

Origin: Merelani Mine / Arusha / Tanzania

Photo by kind permission of © www.irocks.com
Zoisite Mineral

Zoisite Mineral

Origin: Merelani Mine / Umba Valley / Arusha / Simanjiro Distr. / Tanzania

Photo by kind permission of © www.irocks.com
Tanzanite

Zoisite Mineral

Size: 1.3 x 0.5 x 0.5 cm

Origin: Alchuri / Shigar Valley / Skardu Distr. / Pakistan

Photo by kind permission of © www.irocks.com
Zoisite Mineral
Zoisite

Weight: 1.31 ct

Origin: Pakistan

Photo by kind permission of © www.rocklogic.biz

Zoisite

Size: 0.58 x 0.48 x 0.42 cm
Weight: 1.04 ct
Origin: Kenya

Photo by kind permission of © www.palagems.com

Zoisite

Size: 0.83 x 0.69 x 0.49 cm
Weight: 2.09 ct
Origin: Tanzania

Photo by kind permission of © www.palagems.com

Zoisite

Weight: 2.7 ct

Origin: Merelani Mine / Umba Valley / Arusha / Simanjiro Distr. / Tanzania

Photo by kind permission of www.greatcabochons.com
Green Tanzanite

Zoisite

Weight: 1.25 ct

Origin: Pakistan

Photo by kind permission of © www.irocks.com

Zoisite Mineral

Origin: Alchuri / Shigar Valley / Skardu Distr. / Pakistan

Photo by kind permission of © www.irocks.com
Zoisite Mineral
Zoisite

Size: 0.80 x 0.69 x 0.47 cm
Weight: 1.90 ct
Origin: Tanzania

Photo by kind permission of © www.palagems.com

Zoisite Mineral

Origin: Nuristan / Afghanistan

Photo by kind permission of © www.irocks.com
Zoisite Mineral
Zoisite

Size: 0.63 x 0.63 cm
Weight: 1.16 ct
Origin: Pakistan

Photo by kind permission of © Darlene Cobler

Zoisite

Weight: 0.51 ct

Origin: Tanzania

Photo by kind permission of © www.thegemtrader.com

Zoisite

Weight: 3.30 ct

Origin: Merelani Mine / Umba Valley / Arusha / Simanjiro Distr. / Tanzania

Photo by kind permission of © www.multicolour.com

Zoisite Mineral Var. Anyolite with Ruby

Origin: Tanzania

Photo by kind permission of © www.mineraltivadar.fw.hu
Zoisite Mineral
Zoisite Var. Anyolite with Ruby

Photo by kind permission of © skywalker.cochise.edu
Zoisite Var. Anyolite with Ruby

Size: 0.32 x 0.24 cm
Weight: 50.75 ct
Origin: Tanzania

Photo by kind permission of © www.irocks.com

Zoisite Var. Thulite Mineral on Albite

Size: 4.0 x 3.0 x 1.7 cm

Origin: Remigny / Québec / Canada

Photo by kind permission of © www.kqminerals.com
Thulite Mineral
Zoisite Var. Thulite

Size: 1.8 x 1.3 cm

Origin: Kleppan / Sauland / Hjartdal / Telemark / Norway

Photo by kind permission of © www.edelsteine.at
Zoisite Var. Thulite Mineral

Origin: Kleppan / Sauland / Hjartdal / Telemark / Norway

Photo by kind permission of © António Manuel Ináçio Martins
Thulite Mineral
Zoisite Var. Thulite

Size: 1.02 x 0.48 cm
Weight: 1.27 ct
Origin: Norway

Photo by kind permission of © www.thegemtrader.com
Zoisite Var. Thulite Mineral

Size: 5.5 x 3.3 x 2 cm

Origin: Lom / Norway

Photo by kind permission of © www.kqminerals.com
Thulite Mineral
Zoisite Var. Thulite

Size: 1.8 x 1.3 cm

Origin: Kleppan / Sauland / Hjartdal / Telemark / Norway

Photo by kind permission of © www.edelsteine.at

Zoisite bicolor

Size: 1.01 x 0.46 cm
Weight: 1.02 ct
Origin: Merelani / Tanzania

Photo by kind permission of © www.thegemtrader.com
Zoisite bicolor

Weight: 1.22 ct

Origin: Tanzania

Photo by kind permission of © www.thegemtrader.com


See also Tanzanite.

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