Tenacity
Brittle
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
3.745-3.7765.00-5.30
1
7.18
👆🏻
Fracture
Conchoidal
Uneven, ConchoidalWalter Schumann, Conchoidal
Cleavage
Perfect on {010}, fair on {101}
None, may show partings on {0001} and {10 1 1}
Mohs Hardness
3-3.56
2
10
👆🏻
Chemical Composition
Cu2Cl(OH)3
Fe 2O 3Arthur Thomas , Gemstones (2009)