| P number: | P527563 |
|---|---|
| Caption: | Galena from Tyndrum, Perthshire. |
| Description: | A specimen of galena from the Tyndrum mining district. Galena is the principal lead ore. It is a lead-grey mineral, 2.5 on Moh's scale of hardness. British Geological Survey Petrology Collection sample number MC 7343. Galena is very heavy with a specific gravity of 7.2 to 7.6 and has a perfect cleavage that splits parallel to the cube faces. At the Tyndrum mine there are two almost parallel veins that have been worked, the Hard Vein and the Clay Vein. The Hard Vein occurs in the quartzite on the west side of the fault and consists of a quartz gangue carrying galena, zinc-blende and chalcopyrite. |
| Date taken: | Sun Jun 25 00:00:00 GMT 1905 |
| Photographer: | Unknown |
| Copyright statement: | Unknown |
| Orientation: | Landscape |
| Size: | 298.09 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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