1 Physical Properties
1.1 Tenacity
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.745-3.7763.80-4.15
1
7.18
1.5 Fracture
Conchoidal, Conchoidal, Brittle
Uneven, UnevenArthur Thomas, Gemstones (2009)
1.6 Cleavage
Perfect on {010}, fair on {101}
perfect along [010] and [100]
1.7 Mohs Hardness
1.8 Chemical Composition
Cu2Cl(OH)3
Cu 5(SiO 3) 4(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references