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Staurolite
Staurolite
Mineral Properties and Uses
Physical Properties of Staurolite |
| Uses |
abrasive, jewelry |
| Color |
reddish, yellowish, brownish black, black, gray |
| Streak |
gray |
| Luster |
vitreous |
| Diaphaneity |
translucent to opaque |
| Cleavage |
poor |
| Mohs Hardness |
7 - 7.5 |
| Specific Gravity |
3.7 - 3.8 |
| Distinguishing Characteristics |
color, crystal form |
| Crystal System |
monoclinic |
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| Staurolite in schist from Little Falls, Minnesota. Specimen is approximately 4 inches (10 centimeters) across. |
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