General Information:
Chemical Formula:Pb6As2O7Cl4
Composition:(Molecular Weight = 1,646.85 gm)Arsenic 9.10 %
AsLead 75.49 %
PbChlorine 8.61 %
ClOxygen 6.80 %
O Empirical Formula: Pb6As2O7Cl4
Environment:Secondary mineral.
Locality:Langban, Harstig, and Jakobsverg mines, Varmland Sweden.
Name Origin:Named from the Greek for "sun" and "leaf', in reference to its color and structure.
Physical Properties: Cleavage:[011] Good
Color:greenish yellow or yellow.
Density:6.89
Diaphaniety:Translucent
Habits:Massive - Granular - Common texture observed in granite and other igneous rock., ,
Hardness:2 - Gypsum
Luster:Vitreous - Greasy
Streak:light yellow
More details...
