Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
3.80-4.153.98-4.04
1
7.18
👆🏻
Fracture
Uneven
Conchoidal
Cleavage
perfect along [010] and [100]
Imperfect, poor one {100}
Mohs Hardness
3.5-44.5-5
2
10
👆🏻
Chemical Composition
Cu 5(SiO 3) 4(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Zn 2(AsO 4)(OH) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references