Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
4.393.98-4.04
1
7.18
👆🏻
Fracture
Uneven
Conchoidal
Cleavage
{111} Indistinct, {111} Indistinct, {111} Indistinct
Imperfect, poor one {100}
Mohs Hardness
7.5-84.5-5
2
10
👆🏻
Chemical Composition
Fe2+ Al 2O 4Gemdat.org , Management Team (2012)
Zn 2(AsO 4)(OH) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references