Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.6-3.33.95-4.10
1
7.18
👆🏻
Fracture
Lamellar
Uneven
Cleavage
Perfect 001
{110} Perfect, {110} Perfect, {110} Perfect
Mohs Hardness
2-2.53.5-4
2
10
👆🏻
Chemical Composition
(Mg,Fe)3(Si,Al)4O10(OH)2·(Mg,Fe)3(OH)6
(Zn,Fe)SMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references