Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.178
2.65-2.87
Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001)
Not Available
Cleavage
Not Available
Not Available
Mohs Hardness
6.5
2.5-4.5
Chemical Composition
Ca 2 MgAl 2 BSi 4 O 15 OH Gemdat.org, Management Team (2012)
Not Available
