VS
Name
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Cu₂₄Fe₂Hg₉S₂₃
Formula
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Mineral Species
Entry type
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Sulfides
Chemical class
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Orthorhombic
Crystal system
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—
Mohs hardness
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6.8
Specific gravity
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—
Streak
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Metallic. Anisotropism: Strong, with colors from grayish white with a bluish tint to blue. R1 –R2: (400) 28.0–31.4
Luster
—
—
Cleavage
—
—
Space group
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—
Structural group
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Gdr · Approved
IMA
—
1979
Named in
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Blackish lead-gray, resembling chalcocite
Typical colors
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Cu · Fe · Hg · S
Elements
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