General Information:
Chemical Formula:
PbAl3(AsO4)(SO4)(OH)6
Composition:
(Molecular Weight = 625.17 gm)
Aluminum 12.95 % Al
Arsenic 11.98 % As
Hydrogen 0.97 % H
Lead 33.14 % Pb
Sulfur 5.13 % S
Oxygen 35.83 % O
Empirical Formula:
PbAl3(AsO4)(SO4)(OH)6
Physical Properties:
Cleavage:
None
Color:
gray white, white, light green, or light gray.
Density:
3.96
Diaphaniety:
Translucent to Subopaque
Hardness:
4.5 - Between Fluorite and Apatite
Luster:
Earthy (Dull)
Streak:
white
More details...