1 Physical Properties
1.1 Tenacity
1.2 Solubility
Effervesces in hot HCl
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.92-3.122.60-2.65
1
7.18
1.5 Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Uneven, Uneven, Gems, Sixth Edition (2006), Uneven, Conchoidal
1.6 Cleavage
[10 1 1] perfect
Perfect on {001}, very good on {010}, imperfect on {110}
1.7 Mohs Hardness
1.8 Chemical Composition
MgCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
NaAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)