Anglesite
Image: Robert M. Lavinsky (CC BY-SA 3.0)
Mineral NameAnglesite
Chemical FormulaPbSO₄
Mohs Hardness2.5
Crystal Systemorthorhombic
Lusteradamantine
Streak Colorwhite
Cleavagegood on {011}, distinct on {210}, poor on {001}
Fractureconchoidal
Specific Gravity6.3
Colorswhite, gray, yellow, green, blue, colorless
Transparencytransparent
Type LocalityBroken Hill, Yancowinna County, New South Wales, Australia
Mineral GroupSulfates
Usesminor ore of lead, collector
Associated Mineralscerussite, galena, sphalerite, pyrite, marcasite, smithsonite, hemimorphite, limonite
Rarityuncommon
Description
The image displays a cluster of white to pale yellowish, somewhat translucent anglesite crystals, exhibiting a blocky or tabular habit. These crystals are intergrown or associated with another mineral, likely cerussite.
Geological Context
Anglesite is a secondary lead sulfate mineral that forms in the oxidized zones of lead sulfide deposits, primarily as an alteration product of galena (PbS). It often occurs in association with other secondary lead minerals.
