General Information:
Chemical Formula:(Cu,Zn)3Pb(AsO4)2(OH)2
Composition:(Molecular Weight = 727.71 gm)Copper 26.20 %
CuArsenic 20.59 %
AsHydrogen 0.55 %
H Lead 28.47 %
PbOxygen 24.18 %
O Empirical Formula: PbCu3(AsO4)2(OH)2·(H2O)
Name Origin:Named after J. Bayldon.
Physical Properties: Cleavage:None
Color:grass green, yellow green, or dark green.
Density:4.35 - 5.5, Average = 4.92
Diaphaniety:Subtranslucent
Habits:Encrustations - Forms crust-like aggregates on matrix., Mammillary - Larger "breast-like" rounded forms resembling botryoidal (e.g. malachite)., Druse - Crystal growth in a cavity whi ch results in numerous crystal tipped su
Hardness:4-5 - Fluorite-Apatite
Luster:Greasy (Oily)
Streak:green
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