Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.52-2.606.30-6.39
1
7.18
👆🏻
Fracture
Uneven, Conchoidal
Conchoidal
Cleavage
{0001} Imperfect, {1120} Imperfect
[001] good, [210] distinct
Mohs Hardness
5.5-63-3.5
2
10
👆🏻
Chemical Composition
KCa 2AlBe 2Si 12O 30 · 0.5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
PbSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references