1 Physical Properties
1.1 Tenacity
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
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1.4 Specific Gravity
1.5 Fracture
Gems, Sixth Edition (2006), Gems, Sixth Edition (2006), Uneven
White, Yellow, Pale blue, Brittle, Uneven
1.6 Cleavage
From the Greek, oligos and kasein, little cleavage.
Perfect on {100} and {010}, imperfect on {101}
1.7 Mohs Hardness
1.8 Chemical Composition
Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Not Available