General Information:
Chemical Formula:
Pb2O(OH)Cl
Composition:
(Molecular Weight = 482.86 gm)
Hydrogen 0.21 % H
Lead 85.82 % Pb
Chlorine 7.34 % Cl
Oxygen 6.63 % O
Empirical Formula:
Pb2O(OH)Cl
Environment:
In lenses and cavities in veins of manganese and iron minerals which cut dolomitic limestones. Related to litharge.
IMA Status:
Approved IMA (Dana # Added)
Locality:
Merehead Quarry, Cranmore, Somerset, England, U.K.
Name Origin:
Named after its locality.
Physical Properties:
Cleavage:
[001] Perfect
Color:
pale yellow or reddish orange.
Density:
7.12 - 7.69, Average = 7.4
Diaphaniety:
Translucent
Habits:
Granular - Generally occurs as anhedral to subhedral crystals in matrix., ,
Hardness:
3.5 - Copper Penny
Luminescence:
Non-fluorescent.
Luster:
Vitreous - Resinous
Streak:
white
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