General Information:
Chemical Formula:
PbWO4
Composition:
(Molecular Weight = 455.05 gm)
Lead 45.53 % Pb
Tungsten 40.40 % W
Oxygen 14.06 % O
Empirical Formula:
Pb(WO4)
Locality:
BROKEN HIL
Name Origin:
Named after J. A. Stolz (1803-1896) from Teplice, Czechoslovakia.
Physical Properties:
Cleavage:
[001] Indistinct
Color:
reddish brown, yellowish brown, brown, greenish brown, or gray.
Density:
7.9 - 8.2, Average = 8.05
Diaphaniety:
Transparent to Translucent
Habits:
Crystalline - Coarse - Occurs as well-formed coarse sized crystals., Granular - Generally occurs as anhedral to subhedral crystals in matrix.,
Hardness:
2.5-3 - Finger Nail-Calcite
Luminescence:
Fluorescent.
Luster:
Adamantine - Resinous
Streak:
white
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