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Baryte : BaSO4 | |
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Windsor Colliery, Abertridwr, Caerphilly (Mid Glamorgan; Glamorgan), Wales, UK Stubby transparent 10mm barite crystal in a siderite lined cavity in ironstone. Ian Jones collection, collected June 1989. |
| © Ian Jones | Photo ID: 5304 View Count: 492 |
Baryte : BaSO4, Goethite : α-Fe3+O(OH) | |
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Cwm Leyshon Quarry, Draethen, Caerphilly (Mid Glamorgan; Glamorgan), Wales, UK Barite coated with goethite and a later phase of barite. Largest crystal 15mm. Ian Jones collection, collected June 1995 |
| © Ian Jones | Photo ID: 5287 View Count: 489 |
Baryte : BaSO4 | |
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Cwm Leyshon Quarry, Draethen, Caerphilly (Mid Glamorgan; Glamorgan), Wales, UK Blue-grey barite crystals, 10-15mm. Ian Jones collection, collected 1991 |
| © Ian Jones | Photo ID: 6800 View Count: 466 |
Galena : PbS, Millerite : NiS | |
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Windsor Colliery, Abertridwr, Caerphilly (Mid Glamorgan; Glamorgan), Wales, UK Galena crystals to 3mm neucleated on millerite crystals, on siderite. Ian Jones collection, collected 1989. |
| © Ian Jones | Photo ID: 7355 View Count: 429 |
Goethite : α-Fe3+O(OH) | |
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Cwm Leyshon Quarry, Draethen, Caerphilly (Mid Glamorgan; Glamorgan), Wales, UK Goethite forming a stout, 25mm, chisel-shaped tabular crystal after barite, on a group of similar, but smaller and less well formed crystals. Probably a pseudomorph by coating rather than by replacement. Ian Jones collection, collected 1995 |
| © Ian Jones | Photo ID: 6510 View Count: 590 |
Hemimorphite : Zn4[(OH)2|Si2O7] · H2O | |
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Cwm Leyshon Quarry, Draethen, Caerphilly (Mid Glamorgan; Glamorgan), Wales, UK Spray of brown hemimorphite crystals to 12mm collected from uppermost bench. |
| © Lloyd Llewellyn | Photo ID: 32885 View Count: 293 |
Hemimorphite : Zn4[(OH)2|Si2O7] · H2O | |
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Cwm Leyshon Quarry, Draethen, Caerphilly (Mid Glamorgan; Glamorgan), Wales, UK Yellow to greenish brown hemimorphite globules and crystals to 6mm collected from uppermost bench. |
| © Lloyd Llewellyn | Photo ID: 32886 View Count: 281 |
Millerite : NiS | |
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Universal Colliery, Senghenydd, Caerphilly (Mid Glamorgan; Glamorgan), Wales, UK 15mm spray of very fine, bright millerite crystals. Ian Jones collection, collected March 1990. |
| © Ian Jones | Photo ID: 5455 View Count: 444 |
Millerite : NiS, Galena : PbS, Quartz : SiO2 | |
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Windsor Colliery, Abertridwr, Caerphilly (Mid Glamorgan; Glamorgan), Wales, UK Millerite, crystals to 12mm, nucleated on a galena crystal, and spanning a siderite lined cavity in ironstone. Quartz crystal 10mm. Ian Jones collection, collected 1992. |
| © Ian Jones | Photo ID: 10362 View Count: 413 |
Millerite : NiS | |
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Windsor Colliery, Abertridwr, Caerphilly (Mid Glamorgan; Glamorgan), Wales, UK Bright, greenish 35x20mm spray of millerite crystals in a siderite lined ironstone cavity. Ian Jones collection, collected August 1989. |
| © Ian Jones | Photo ID: 5331 View Count: 363 |
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