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Quartz (Var: Amethyst) : SiO2, Calcite : CaCO3 | |
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Barrasford Quarry, Hexham, Northumberland, England, UK Single crystal of amethystine quartz with quartz druze, which grew alongside calcite in an amygdale in the whin. Crystal 10mm |
| © HW | Photo ID: 23306 View Count: 458 |
Quartz : SiO2, Calcite : CaCO3 | |
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Barrasford Quarry, Hexham, Northumberland, England, UK Smokey quartz crystals to 1cm formed in amygdales in the whin. |
| © Weardale Rocks | Photo ID: 18237 View Count: 399 |
Quartz : SiO2 | |
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Barrasford Quarry, Hexham, Northumberland, England, UK Red hematite included quartz from the Oxford Limestone above the whin. crystal 2cm high |
| © HW | Photo ID: 22556 View Count: 337 |
Quartz : SiO2 | |
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Barrasford Quarry, Hexham, Northumberland, England, UK Doubly terminated quartz crystal with sulphide inclusions. 35mm long from the Oxford Limestone just above the whin |
| © HW | Photo ID: 23304 View Count: 323 |
Quartz : SiO2, Calcite : CaCO3 | |
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Barrasford Quarry, Hexham, Northumberland, England, UK Quartz septre 14mm high in an amygdale with calcite |
| © HW | Photo ID: 22558 View Count: 296 |
Quartz : SiO2, Calcite : CaCO3 | |
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Barrasford Quarry, Hexham, Northumberland, England, UK Smokey quartz crystals to 12mm with calcite from a large veshicle in the Whinstone. Collected 1998 |
| © HW | Photo ID: 23991 View Count: 294 |
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