General Information:
Chemical Formula:Pb2Cu(CrO4)(PO4)(OH)
Composition:(Molecular Weight = 705.92 gm)Chromium 7.37 %
CrCopper 9.00 %
CuPhosphorus 4.39 %
P Hydrogen 0.14 %
H Lead 58.70 %
PbOxygen 20.40 %
O Empirical Formula: Pb2Cu(CrO4)(PO4)(OH)
Physical Properties: Cleavage:[???] Indistinct
Color:brown, brownish green, brownish black, green, or black.
Density:6
Diaphaniety:Transparent to Translucent
Habits:Reniform - "Kidney like" in shape (e.g.. hematite)., Mammillary - Larger "breast-like" rounded forms resembling botryoidal (e.g. malachite).,
Hardness:2.5-3 - Finger Nail-Calcite
Luminescence:Non-fluorescent.
Luster:Adamantine - Resinous
Streak:brownish
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