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