Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.722.54-2.61
1
7.18
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Fracture
-
Uneven
Cleavage
{110} Perfect, {010} Perfect
{001} Perfect, {010} Good
Mohs Hardness
5-66
2
10
👆🏻
Chemical Composition
Na 2ZrSi 3O 9 · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)