General Information:
Chemical Formula:
K2PbCl4 (?)
Composition:
(Molecular Weight = 427.21 gm)
Potassium 18.30 % K
Lead 48.50 % Pb
Chlorine 33.19 % Cl
Empirical Formula:
K2PbCl4
Environment:
In fumaroles, associated with cotunnite.
Locality:
Vesuvius, Italy.
Name Origin:
Named for the Greek "pseudo", false and cotunnite, a mineral it resembles in some respects.
Physical Properties:
Color:
colorless, green yellow, yellow, or white.
Density:
4.25
Diaphaniety:
Transparent to Translucent
Habits:
Acicular - Occurs as needle-like crystals., Platy - Sheet forms (e.g. micas)., Aggregates - Made of numerous individual crystals or clusters.
Luster:
Earthy (Dull)
Streak:
white
More details...