Linarite, with brochantite, hidalgoite, and quartz (pseudomorphous after anglesite (?))

Linarite


Composition: PbCu2+(SO4)(OH)2
Crystal System : Monoclinic
Lustre : Sub-adamantine, vitreous
Hardness : 2.5
Specific Gravity : 5.3-5.5
References:

Bartelke (1976)