Compare Minerals
Put any two minerals side by side — formula, structure, hardness, density and more. Type to search each slot.
Name
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Cu₉Fe₉S₁₆
Formula
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Mineral Species
Entry type
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Sulfides
Chemical class
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Tetragonal
Crystal system
—
—
Mohs hardness
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4.36
Specific gravity
—
—
Streak
—
Metallic. R: (400) 14.3, (420) 16.7, (440) 20.0, (460) 23.9, (480) 27.5, (500) 30.6, (520) 33.2, (540) 35.2
Luster
—
—
Cleavage
—
P-42m
Space group
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Chalcopyrite
Structural group
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Mho · Approved
IMA
—
1971
Named in
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Pale yellow in reflected light, tarnishes to pinkish brown and purple
Typical colors
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Cu · Fe · S
Elements
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