Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.63-3.92.24-2.29
1
7.18
👆🏻
Fracture
Conchoidal, Uneven
Uneven, Subconchoidal, Conchoidal
Cleavage
Indistinct
Very poor [100]
Mohs Hardness
7.5-85-5.5
2
10
👆🏻
Chemical Composition
(Mg,Fe2+ )Al 2O 4Gemdat.org , Management Team (2012) More from other references
NaAlSi 2O 6 · H 2OMichael OâDonoghue , Gems, Sixth edition (2006) More from other references