General Information:
Chemical Formula:Bi(Fe+++,Al)3(PO4)2(OH)6
Composition:(Molecular Weight = 646.86 gm)Aluminum 3.13 %
AlIron 19.43 %
FeBismuth 32.31 %
BiPhosphorus 9.58 %
P Hydrogen 0.93 %
H Oxygen 34.63 %
O Empirical Formula: BiFe3+2.25Al0.75(PO4)2(OH)6
IMA Status:Approved IMA 1975
Physical Properties: Color:greenish, greenish white, or yellow green.
Density:4.37
Diaphaniety:Transparent to Translucent
Hardness:4.5 - Between Fluorite and Apatite
Luster:Vitreous - Resinous
Streak:white
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