Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.723.32
1
7.18
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Fracture
-
-
Cleavage
{110} Perfect, {010} Perfect
{???} Distinct, {???} Distinct, {???} Distinct
Mohs Hardness
5-6-9999
2
10
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Chemical Composition
Na 2ZrSi 3O 9 · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
LiFe3+ (PO 4)(OH)Anthony et al , Handbook of mineralogy (2001)