Corundum var sapphire.
Pennycross, W of Loch Scridain, Isle of Mull, Soctland, UK.
Crystal in background is 1 mm across. 37 mm specimen hosts many others, to 4 mm. (Author: Ru Smith)
Dimensions: | 800 x 610 |
File size: | 46.33 kbytes |
Taken on: | |
Camera model: | |
Shutter speed: | |
Focal length: | |
Aperture: | |
Flash: | |
ISO: |