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Manganoneptunite : Na2KLi(Mn2+,Fe2+)2Ti2[Si8O24] | |
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Point of Rocks Quarry, Point of Rocks Mesa (Pecks Mesa), Springer, Colfax Co., New Mexico, USA Etched/striated mangan-neptunite. Photo is about 2.2 mm in length. Photo and specimen: Steve Stuart. |
| © SMS 2007 | Photo ID: 99111 View Count: 123 |
Manganoneptunite : Na2KLi(Mn2+,Fe2+)2Ti2[Si8O24] | |
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Point of Rocks Quarry, Point of Rocks Mesa (Pecks Mesa), Springer, Colfax Co., New Mexico, USA Deep red manganoneptunite. Photo is about 2.1 mm in length. Photo and specimen: Steve Stuart. |
| © SMS 2008 | Photo ID: 168296 View Count: 96 |
Marcasite : FeS2 | |
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Lincoln Quarry (Beamsville Quarry), Beamsville, Clinton Township, Lincoln Co., Ontario, Canada Very small plates of marcasite on dolomite. Photo is about 2.1 mm in length. Photo and specimen: Steve Stuart. |
| © SMS 2008 | Photo ID: 147669 View Count: 97 |
Marcasite : FeS2 | |
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Lafarge Dundas North Quarry (Dundas Quarry; Redland; Quarry; Lafarge Quarry; Steetly Quarry; Steetley Quarry; Canada Crushed Stone Quarry), Dundas, Hamilton, Wentworth Co., Ontario, Canada Classic marcasite crystal form from the LaFarge Quarry in Dundas, Ontario, Canada. Photo is about 4.3 mm in length. Photo and specimen: Steve Stuart. |
| © SMS 2008 | Photo ID: 147873 View Count: 100 |
Marcasite : FeS2 | |
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Rensselaer Quarry (Rensselaer Stone Company Quarry; Pleasant Ridge Quarry), Pleasant Ridge, Jasper Co., Indiana, USA Marcasite. Photo is about 2.2 mm in length. Close examination indicates that the marcasite has grown outward on a substrate of pyrite. Photo and specimen: Steve Stuart. |
| © SMS 2006 | Photo ID: 73171 View Count: 224 |
Marcasite : FeS2, Calcite : CaCO3 | |
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Rensselaer Quarry (Rensselaer Stone Company Quarry; Pleasant Ridge Quarry), Pleasant Ridge, Jasper Co., Indiana, USA Marcasite associated with calcite. The calcite fluoresces an orange-yellow color under SW, MW and LW UV light. Photo is about 2.2 mm in length. Photo and specimen: Steve Stuart. |
| © SMS 2006 | Photo ID: 73172 View Count: 172 |
Marcasite : FeS2, Calcite : CaCO3 | |
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Rensselaer Quarry (Rensselaer Stone Company Quarry; Pleasant Ridge Quarry), Pleasant Ridge, Jasper Co., Indiana, USA Chevron-striated marcasite associated with calcite. Photo is 2.2 mm in length. Photo and specimen: Steve Stuart. |
| © SMS 2006 | Photo ID: 73173 View Count: 198 |
Marcasite : FeS2, Calcite : CaCO3 | |
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Pint's Quarry, Raymond, Black Hawk Co., Iowa, USA A broken and repaired (by nature) sword of marcasite associated with calcite. Photo is 10 mm in length. Photo and specimen: Steve Stuart. |
| © SMS 2006 | Photo ID: 54039 View Count: 220 |
Marcasite : FeS2 | |
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Pint's Quarry, Raymond, Black Hawk Co., Iowa, USA Marcasite associated with calcite. Photo is 2.5 mm in length. Photo and specimen: Steve Stuart. |
| © SMS 2006 | Photo ID: 54040 View Count: 204 |
Marcasite : FeS2, Calcite : CaCO3 | |
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Pint's Quarry, Raymond, Black Hawk Co., Iowa, USA Blades of marcasite with associated calcite. Photo is 5 mm in length. Photo and specimen: Steve Stuart. |
| © SMS 2006 | Photo ID: 54045 View Count: 234 |
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