Ferrilotharmeyerite

General Information:
 Chemical Formula:
Ca(Zn,Cu++)(Fe+++,Zn)[(As+++++O3(OH)2](OH)3
 IMA Status:
Approved IMA
Physical Properties:
 Cleavage:
[???] Good
 Color:
brownish yellow or yellow brown.
 Density:
4.25
 Diaphaniety:
Transparent to Translucent
 Hardness:
3 - Calcite
 Luster:
Adamantine - Greasy
 Streak:
light yellow
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