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Staurolite
Staurolite - Mineral Properties and Uses |
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Uses |
Staurolite uses include: abrasive, jewelry. |
Color |
reddish, yellowish, brownish black, black, gray |
Streak |
gray |
Luster |
vitreous |
Diaphaneity |
translucent to opaque |
Cleavage |
poor |
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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