Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
-99993.80-4.15
1
7.18
👆🏻
Fracture
-
Uneven
Cleavage
None
perfect along [010] and [100]
Mohs Hardness
-99993.5-4
2
10
👆🏻
Chemical Composition
-
Cu 5(SiO 3) 4(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references