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Cassiterite
Cassiterite - Mineral Properties and Uses |
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Uses |
Cassiterite uses include: ore of tin. |
Color |
brown, black, reddish brown, brownish black |
Streak |
colorless |
Luster |
adamantine, splendent to submetallic |
Diaphaneity |
opaque to translucent |
Cleavage |
imperfect |
Hardness |
6.0 - 7 |
Specific Gravity |
6.8 - 7.1 |
Distinguishing
Characteristics |
high specific gravity, luster, streak, fibrous appearance |
Crystal System |
tetragonal |
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Cassiterite from Plateau State, Nigeria, Africa.
These specimens are granular size.
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Cassiterite from near Keystone, South Dakota.
Specimen is approximately 4 inches (10 centimeters) across.
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Stream Tin, a variety of cassiterite from Tinton, South Dakota.
Specimens are approximately 1/8 inch to 3/8 inch (.3 centimeter to .95 centimeter) across.
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