Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.80-4.152.25-2.40
1
7.18
👆🏻
Fracture
Uneven
-
Cleavage
perfect along [010] and [100]
perfect on {010}; good on {100}
Mohs Hardness
3.5-45-5.5
2
10
👆🏻
Chemical Composition
Cu 5(SiO 3) 4(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
NaCa 2Al 5Si 5O 20 · 6H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references