Tenacity
Brittle
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.00-2.453.19-3.56
1
7.18
👆🏻
Fracture
Sub-Conchoidal, Conchoidal
Uneven, Conchoidal
Cleavage
none
{110} Perfect, {010} Indistinct
Mohs Hardness
2-45.5-6
2
10
👆🏻
Chemical Composition
Cu2H2Si2O5(OH)4
(Ca,Na)(Mg,Fe,Al,Ti)(Si,Al) 2O 6Anthony et al , Handbook of mineralogy (2001)