Distinct after {001} and {110}, undistinct after {010}
Fracture
conchoidal
Tenacity
Elastic-flexible
Point Group
ditetragonal-dipyramidal - 4/m 2/m 2/m
Space Group
P4/mbm (127)
Habit
blocky, prismatic, tabular
Formation
Secondary, through the chemical weathering of lead-bearing primary ores (mostly galena) in the oxidation zone under the influence of chloride-bearing, carbonate-rich solutions
