1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
1.5 Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001)
Brittle, Metallic, Brittle, Metallic
1.6 Cleavage
Not Available
{110} Perfect, {010} Perfect
1.7 Mohs Hardness
1.8 Chemical Composition
Ca 2 MgAl 2 BSi 4 O 15 OH Gemdat.org, Management Team (2012)
Na 2ZrSi 3O 9 · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)