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Calcite : CaCO3, Dolomite : CaMg(CO3)2, Quartz : SiO2, Quartz (Var: Smoky Quartz) : SiO2 | |
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Living Mountain Mine, Little Falls, Herkimer Co., New York, USA Lenticulated calcites with etched surfaces reside on reddish tan dolomites with a deep smokey quartz and a herkimer. 5cm X 6cm X 3cm |
| © Geoffrey Krasnov | Photo ID: 92304 View Count: 125 |
Calcite : CaCO3, Dolomite : CaMg(CO3)2 | |
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Living Mountain Mine, Little Falls, Herkimer Co., New York, USA Lenticulated calcites on dolomite. 4.5cm X 3.5cm X 2.2cm |
| © Geoffrey Krasnov | Photo ID: 92305 View Count: 110 |
Calcite : CaCO3 | |
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Middleville quarry, Middleville, Town of Newport, Herkimer Co., New York, USA Cleavage fragment of calcite showing distinct pink and green color zoning. Measures 5cm in longest dimension. |
| Photo ID: 242873 View Count: 22 | |
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Middleville quarry, Middleville, Town of Newport, Herkimer Co., New York, USA Group of greenish calcite crystals on dolostone matrix with cream colored saddle-shaped dolomite crystals. Specimen measures 11cm overall with individual calcite crystals to 5cm. |
| Photo ID: 242871 View Count: 14 | |
Dolomite : CaMg(CO3)2, Quartz : SiO2 | |
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Treasure Mountain Diamond mine, Little Falls, Herkimer Co., New York, USA 2 mm quartz crystal perched on dolomite. P. Cristofono specimen & photo. Field collected 2001. |
| © 2004 Peter Cristofono | Photo ID: 14547 View Count: 498 |
Dolomite : CaMg(CO3)2, Pyrite : FeS2 | |
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Herkimer Co., New York, USA White dolomite crystals up to 5 mm length. Christian Bracke Collection. |
| © Christian Bracke | Photo ID: 93522 View Count: 141 |
Quartz : SiO2 | |
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Treasure Mountain Diamond mine, Little Falls, Herkimer Co., New York, USA Exquisite scepter formation of black quartz stem 14 mm long by 4 mm thick with a cap of clear quartz variety Herkimer Diamond 14 mm long by 9 mm diameter. The black stem can be clearly seen extending into the clear cap. See article in Rocks and Minerals. Overall size of mineral specimen: 25x9x6 mm. Size of individual crystals: 14 mm. |
| © 2001 John H. Betts | Photo ID: 1781 View Count: 1520 |
Quartz : SiO2 | |
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Treasure Mountain Diamond mine, Little Falls, Herkimer Co., New York, USA Unusual barbell formation of black quartz stem wit clear Herkimer Diamonds on both ends and small one in the middle. No point of contact. The black stem can be clearly seen extending into the clear cap. See article in Rocks and Minerals. Overall size of mineral specimen: 38x18x12 mm. Size of individual crystals: 10-20 mm. |
| © 2001 John H. Betts | Photo ID: 1782 View Count: 535 |
Quartz : SiO2 | |
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Treasure Mountain Diamond mine, Little Falls, Herkimer Co., New York, USA Large scepter formation of black quartz stem 25 mm long by 1o mm thick with a cap of clear quartz variety Herkimer Diamond 25 mm long by 18 mm diameter. The black stem can be clearly seen extending into the clear cap. See article in Rocks and Minerals. Overall size of mineral specimen: 48x18x12 mm. Size of individual crystals: 25 mm. |
| © 2001 John H. Betts | Photo ID: 1783 View Count: 481 |
Quartz : SiO2 | |
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Treasure Mountain Diamond mine, Little Falls, Herkimer Co., New York, USA Bubble in quartz with "anthraxolite". Christine Rust collection |
| Photo ID: 3423 View Count: 446 | |
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