| P number: | P527562 |
|---|---|
| Caption: | Galena from Tyndrum, Perthshire. |
| Description: | Galena is a lead sulphide belonging to the cubic crystal system. It can occur as lead-grey crystals though usually it occurs as compact granular masses with many shiny surfaces. British Geological Survey Petrology Collection sample number MC 7342. This specimen is from the Tyndrum mining district where lead was first discovered in 1741. The primary ores are galena, zinc-blende, chalcopyrites and pyrites. At many locations galena and zinc-blende occur in roughly equal proportions and they are the only ores present in workable quantities. Gangue minerals include quartz, calcite and barytes. |
| Date taken: | Sun Jun 25 00:00:00 GMT 1905 |
| Photographer: | Unknown |
| Copyright statement: | Unknown |
| Orientation: | Landscape |
| Size: | 318.26 KB; 1000 x 665 pixels; 85 x 56 mm (print at 300 DPI); 265 x 176 mm (screen at 96 DPI); |
| Average Rating: | Not yet rated |
| Categories: | Unsorted Images |
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