General Information:
Chemical Formula:
PbSO4
Composition:
(Molecular Weight = 303.26 gm)
Lead 68.32 % Pb
Sulfur 10.57 % S
Oxygen 21.10 % O
Empirical Formula:
Pb(SO4)
Environment:
Secondary, weathered deposits of lead ore.
Locality:
Tsumeb, Southwest Africa.
Name Origin:
Named after the island of Anglesey (Wales, Great Britain).
Physical Properties:
Cleavage:
[001] Good, [210] Distinct
Color:
blue, colorless, green, gray, or yellow.
Density:
6.3
Diaphaniety:
Transparent to translucent
Habits:
Granular - Generally occurs as anhedral to subhedral crystals in matrix., Stalactitic - Shaped like pendant columns as stalactites or stalagmites (e.g. calcite).,
Hardness:
2.5-3 - Finger Nail-Calcite
Luminescence:
None.
Luster:
Adamantine
Streak:
white
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