1 Physical Properties
1.1 Tenacity
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.83-3.892.90-2.98
1
7.18
1.5 Fracture
Uneven, Conchoidal, UnevenArthur Thomas, Brittle
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001), Brittle
1.6 Cleavage
Perfect on {01 1 1}
Distinct on {11 2 0}, imperfect on {10 1 1}
1.7 Mohs Hardness
1.8 Chemical Composition
Fe2+ CO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references