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Split Rock, Granite Mountains, Natrona Co., Wyoming, USA

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Actinolite (Var: Nephrite) : ☐Ca2(Mg,Fe2+)5(Si8O22)(OH)2

Split Rock, Granite Mountains, Natrona Co., Wyoming, USA

Cut sample and polished with 6x2x2cm - December of 2004 - From Glenn Laidlaw collection
 © Martins da PedraPhoto ID: 60381    View Count: 755

Quartz : SiO2

Split Rock, Granite Mountains, Natrona Co., Wyoming, USA

Larger crystal with 4cm - December of 2004
 © Martins da PedraPhoto ID: 61311    View Count: 173

Quartz : SiO2

Split Rock, Granite Mountains, Natrona Co., Wyoming, USA

Crystal with 4,5cm (these crystals remind a pencil) - December of 2004
 © Martins da PedraPhoto ID: 61313    View Count: 170

Quartz : SiO2

Split Rock, Granite Mountains, Natrona Co., Wyoming, USA

Crystal biterminated with 2,5cm - December of 2004
 © Martins da PedraPhoto ID: 61310    View Count: 165

Quartz : SiO2

Split Rock, Granite Mountains, Natrona Co., Wyoming, USA

Biterminated crystal with 3cm - December of 2004
 © Martins da PedraPhoto ID: 61312    View Count: 162

Quartz : SiO2

Split Rock, Granite Mountains, Natrona Co., Wyoming, USA

Crystal with 6,5cm - December of 2004
 © Martins da PedraPhoto ID: 61314    View Count: 152
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