Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.55-2.633.89-4.18
1
7.18
👆🏻
Fracture
Uneven
Conchoidal, Uneven
Cleavage
{001} Perfect, {010} Good
{0001}, {11 2 0} imperfect
Mohs Hardness
6-6.55.5
2
10
👆🏻
Chemical Composition
KAlSi 3O 8Arthur Thomas , Gemstones (2009)
Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references