Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.76-3.773.95-4.10
1
7.18
👆🏻
Fracture
-
Uneven
Cleavage
{110} Perfect, {110} Perfect
{110} Perfect, {110} Perfect, {110} Perfect
Mohs Hardness
5-63.5-4
2
10
👆🏻
Chemical Composition
(Fe,Mn) 7Si 7O 21Ulrich Henn and Claudio C.
(Zn,Fe)SMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references