A Geoscience Digital Image Library
A Geoscience Digital Image Library
| Title | Sapphire (corundum) |
|---|---|
| Description | Sapphire is a name used for all non-red varieties of gemmy corundum, Al2O3 (aluminum oxide). The red variety of corundum is ruby. Most people think sapphires are blue, but other colors are possible. Yellow is very common. In some “star” sapphires, oriented rutile inclusions cause a six-pointed-star sparkly effect (called asterism). These crystals are small, about 1 cm in longest dimension. |
| Location | Burma. Near Mogok. |
| Photographer | Nessa Eull. 2001-08-07. |
| Collection | University of North Dakota Mineralogy Collection #3044. |
| Key words | sapphire, Burma |
| Tech details | 257 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
| GeoDIL number | 1432 |
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