1 Physical Properties
1.1 Tenacity
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Not Available
1.2 Solubility
Not Available
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1.4 Durability
Not Available
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1.7 Specific Gravity
3.29-3.333.18-3.37
1
7.18
1.16 Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001)
Conchoidal
1.17 Cleavage
Not Available
Perfect on 210
1.18 Mohs Hardness
1.19 Chemical Composition
(Ca,Ce) 4 Na(Na,Ca) 2 Ti(Si 2 O 7 ) 2 F 2 (O,F) 2 Michael O’Donoghue, Gems, Sixth Edition (2006)
Not Available