Cuprite single crystal (natural)
Copper oxide Cu2O
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Crystal Properties
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Crystal growth method
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Natural
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Crystal orientation
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(001) (100) (110) (111) others on request
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Maximum size
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up to 10 x 10 mm, standard 4 x 4 mm
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Crystallographic properties
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a = 4,27 Å V 77.77 Å Z = 2
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Crystallographic symmetry
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cubic (4/m 3 2/m)
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Crystal system
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Cubic hexoctahedral
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Twinning structure
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no, except natural defects
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Mohs scale hardness
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3.5 to 4
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Diaphaneity
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Transparent, translucent
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Specific gravity
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6.14 g/cm3
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Colour
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Dark red to conchineal red
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Refractive index
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n = 2.849
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Pleochroism
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Visible
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