1 Physical Properties
1.2 Tenacity
1.5 Solubility
1.9 Durability
Not Available
Not Available
1.12 Specific Gravity
3.30-3.50Not Available
1
7.18
1.19 Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle
Not Available
1.20 Cleavage
Perfect on {110}, poor on {101}, {001} rare
Not Available
1.21 Mohs Hardness
1.24 Chemical Composition
Zn 4Si 2O 7(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Not Available