Faceted sapphirine is exceedingly rare although the material does occur in transparent grains. The refractive index is very close to that of idocrase.
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| Known Facts |
| Color Key: |
Pale blue, bluish gray, greenish gray, green, purplish pink |
| Refractive Index: |
1.714-1.723 |
| Hardness: |
7.5 |
| Density: |
3.4-3.5 |
| Crystal Group: |
Monoclinic |
| Ocurrence: |
U.S.A., U.K., Sweden, Czechoslovakia, Japan, South Africa, Greenland, Madagascar, Italy, Sri Lanka |
| Illustrations |
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