1 Physical Properties
1.1 Tenacity
1.2 Solubility
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.6 Fracture
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle
Conchoidal, Brittle
2.7 Cleavage
Perfect in three directions
{001} perfect; {111} imperfect, may exhibit parting on , {011}
2.8 Mohs Hardness
2.12 Chemical Composition
CuSiO 2(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
MgOMichael OâDonoghue , Gems, Sixth Edition (2006)