Kyanite
UNB-2017-0020Minerals
Description
Sample of bladed blue Kyanite crystals with a vitreous lustre.
Kyanite (Al2SiO5) can be blue, white, colourless, green, grey or nearly black in colour with a vitreous lustre. Streak is colourless and hardness is 4 to 5 lengthwise but 6 to 7 crosswise. Cleavage is perfect lengthwise and good in a second direction. Kyanite is usually founded as bladed aggregates and sometimes can be terminated crystals.
Specifications
| Object name | Kyanite |
|---|---|
| ID | UNB-2017-0020 |
| Legal status | Permanent collection |
| Category | Mineral |
| Origin | Cullen, Virginia, U.S.A. |
| Pieces | 1 |
| Partial | No |
| Measurements |
|
Map of Origin
Publications
- Chesterman, C.W. 1979. Audubon Society, Field Guide to North American Rocks and Minerals. Knopf.