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Actinolite (Var: Nephrite) : ☐Ca2(Mg,Fe2+)5(Si8O22)(OH)2 | |
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Split Rock, Granite Mountains, Natrona Co., Wyoming, USA Cut sample and polished with 6x2x2cm - December of 2004 - From Glenn Laidlaw collection |
| © Martins da Pedra | Photo ID: 60381 View Count: 746 |
Amber, Coal | |
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Wyodak Coal seams, Campbell Co., Wyoming, USA Amber on sub-bituminous coal. Width of specimen approximately 15 cm. |
| © Stephen E. Fritz | Photo ID: 134546 View Count: 364 |
Baryte : BaSO4 | |
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Shirley Basin barite locality, Shirley Basin, Carbon Co., Wyoming, USA 4.6 x 3.2 x 2.5 cm |
| © Dan Weinrich Minerals | Photo ID: 227126 View Count: 34 |
Calcite : CaCO3 | |
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Dead Indian Hill, Park Co., Wyoming, USA Surperb 3cm calcite collected, prepared, Chris Tucker. |
| © Chris Tucker | Photo ID: 24350 View Count: 372 |
Calcite : CaCO3 | |
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Dead Indian Hill, Park Co., Wyoming, USA Calcite, Dead Indian Hill, Park County, Wyoming. A single 5cm calcite lying on a carpet of colorless calcite microcrystals, the larger calcite is etched and slightly frosted, no damage. Measures 12x8x6cm |
| © Chris Tucker | Photo ID: 53763 View Count: 178 |
Calcite : CaCO3 | |
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Dead Indian Hill, Park Co., Wyoming, USA 11´5x7´5 cm |
| © Alfonso Rodriguez | Photo ID: 64961 View Count: 160 |
Calcite : CaCO3 | |
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Dead Indian Hill, Park Co., Wyoming, USA Amber calcite crystal resting on a carpet of thousands of colorless calcite microcrystals. No damage. Measures 10x7x6cm |
| © Chris Tucker | Photo ID: 43348 View Count: 273 |
Calcite : CaCO3 | |
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Dead Indian Hill, Park Co., Wyoming, USA Calcite, Dead Indian Hill, Park County, Wyoming. A single golden yellow calcite sits on this piece, the calcite is 4cm long, no damage. Measures 4x4x5cm |
| © Chris Tucker | Photo ID: 53766 View Count: 201 |
Calcite : CaCO3 | |
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Dead Indian Hill, Park Co., Wyoming, USA Calcite, Dead Indian Hill, Park County, Wyoming. Cute light yellow calcite twin resting on matrix, the calcite measures 3.5cm in length, no damage. Measures 6x5x5cm |
| © Chris Tucker | Photo ID: 53764 View Count: 209 |
Calcite : CaCO3 | |
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Dead Indian Hill, Park Co., Wyoming, USA Calcite, Dead Indian Hill, Park County, Wyoming. Two golden yellow calcite crystals, the largest is 5cm, are present on this piece, a smaller crystal is behind the main crystal in the picture, no damage. Measures 6.5x6x5cm |
| © Chris Tucker | Photo ID: 53767 View Count: 179 |
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