1 Physical Properties
1.1 Tenacity
1.2 Solubility
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.20-2.233.95-4.10
1
7.18
1.5 Fracture
Irregular/uneven, UnevenAnthony et al, Handbook of mineralogy (2001), Brittle, Uneven
UnevenWalter Schumann, Gemstones of the world (2001) More from other references, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Uneven
1.6 Cleavage
Perfect on {110} and {1 1 0}
{110} Perfect, {110} Perfect, {110} Perfect
1.7 Mohs Hardness
1.8 Chemical Composition
CaAl 2Si 3O 10 · 3H 2OUlrich Henn and Claudio C.
(Zn,Fe)SMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references