Pyromorphite

Pyromorphite – Pb5(PO4)3Cl
Class: Phosphates
Crystal System: Hexagonal
Hardness: 3.5-4
Fluorite
Talc (1)Diamond (10)
Softer than glass. A steel knife scratches it.
Origin: Les Farges, Ussel, Correze, Nouvelle-Aquitaine – France
Did you know?

Pyromorphite belongs to the apatite family, the same group as the mineral that builds tooth enamel and bone. It is that mineral with lead swapped in for calcium, the heavy, toxic cousin of what makes your teeth.