Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.6-3.33.65-4.55
1
7.18
👆🏻
Fracture
Lamellar
Conchoidal
Cleavage
Perfect 001
None, but may exhibit slight parting
Mohs Hardness
2-2.57.5-8
2
10
👆🏻
Chemical Composition
(Mg,Fe)3(Si,Al)4O10(OH)2·(Mg,Fe)3(OH)6
(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)