1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.80-4.151.65-1.99
1
7.18
1.5 Fracture
Uneven, UnevenArthur Thomas, Gemstones (2009)
UnevenAnthony et al, Uneven, UnevenAnthony et al, Uneven, Brittle, Metallic
1.6 Cleavage
perfect along [010] and [100]
{010} Perfect, {110} Perfect
1.7 Mohs Hardness
1.8 Chemical Composition
Cu 5(SiO 3) 4(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
NaCaB 5O 6(OH) 6 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)