General Information:
Chemical Formula:
Pb6(IO3)2Cl4O2(OH)2
Composition:
(Molecular Weight = 1,800.83 gm)
Hydrogen 0.11 % H
Lead 69.03 % Pb
Iodine 14.09 % I
Chlorine 7.87 % Cl
Oxygen 8.88 % O
Empirical Formula:
Pb6(IO3)2Cl4O2(OH)2
Environment:
Oxidized lead ores in areas which host caliche nitrate deposits.
Locality:
Cerro Grodo and various other points in northern Chile.
Physical Properties:
Cleavage:
[001] Distinct
Color:
yellow brown, light yellow, or reddish brown.
Density:
6.5
Habits:
Druse - Crystal growth in a cavity which results in numerous crystal tipped surfaces., Crystalline - Fine - Occurs as well-formed fine sized crystals.,
Hardness:
2.5 - Finger Nail
Luster:
Adamantine
Streak:
light yellow
More details...