Tenacity
Brittle
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.83-3.892.24-2.29
1
7.18
👆🏻
Fracture
Uneven, Conchoidal
Uneven, Subconchoidal, Conchoidal
Cleavage
Perfect on {01 1 1}
Very poor [100]
Mohs Hardness
3.5-4.55-5.5
2
10
👆🏻
Chemical Composition
Fe2+ CO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
NaAlSi 2O 6 · H 2OMichael OâDonoghue , Gems, Sixth edition (2006) More from other references