1 Physical Properties
1.1 Tenacity
1.2 Solubility
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
1.5 Fracture
Not Available
Subconchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Conchoidal
1.6 Cleavage
{001} Perfect
Perfect on {001}, poor on {201} with 38.5° angle between the two
1.7 Mohs Hardness
1.8 Chemical Composition
Mg 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)
LiAlSi 4O 10Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references