Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.74-2.763.19-3.56
1
7.18
👆🏻
Fracture
Uneven
Uneven, Conchoidal
Cleavage
{010} Perfect, {001} Distinct
{110} Perfect, {010} Indistinct
Mohs Hardness
3.5-45.5-6
2
10
👆🏻
Chemical Composition
Fe3+ PO 4 · 2H 2OAnthony et al , Handbook of Mineralogy (2001)
(Ca,Na)(Mg,Fe,Al,Ti)(Si,Al) 2O 6Anthony et al , Handbook of mineralogy (2001)