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
Conchoidal, Brittle, Conchoidal
Brittle, Metallic, Brittle, Metallic
1.6 Cleavage
Good on [110] and on [001]
{001} Perfect, {110} Distinct, {101} Distinct
1.7 Mohs Hardness
1.8 Chemical Composition
[ ]Na2(Mg3Al2)Si8O22(OH)2
Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)