Bauxite
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Mineral List
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Rock List
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Guidelines for Rock Collections
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Composition:
Aluminum hydroxide, Al(OH)
3
Hardness:
1 - 3.5
Luster:
Dull
Color:
Reddish to brown
Streak:
Pale reddish brown
Crystal form:
Earthy, clay-like masses
Environment:
Weathering of many rock types
Uses:
Aluminum ore
Comments: