Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.58-2.803.05-3.21
1
7.18
👆🏻
Fracture
Conchoidal
Uneven, Subconchoidal, Splintery
Cleavage
{001} Good
Good on {110}, poor on {100}
Mohs Hardness
5-5.57.5
2
10
👆🏻
Chemical Composition
(Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)
Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references