Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
3.80-4.153.87-4.14
1
7.18
👆🏻
Fracture
Uneven
Subconchoidal, Conchoidal
Cleavage
perfect along [010] and [100]
Poor on {120}, in traces on {001}
Mohs Hardness
3.5-45.5-6
2
10
👆🏻
Chemical Composition
Cu 5(SiO 3) 4(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references