1 Physical Properties
1.1 Tenacity
1.2 Solubility
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
Not Available3.30-3.50
1
7.18
1.8 Fracture
Conchoidal, Uneven
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle
1.9 Cleavage
{1010} Imperfect, {0001} Imperfect
Perfect on {110}, poor on {101}, {001} rare
1.10 Mohs Hardness
2.4 Chemical Composition
Not Available
Zn 4Si 2O 7(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references