Boulangerite

Facts

Chemical formula

Pb₅Sb₄S₁₁

Crystal system

Monoclinic

Mohs hardness

2.8

Elements in formula

Lead, Antimony, Sulfur

Number of elements

3

IMA status

Grandfathered

Named after

Charles Louis Boulanger

Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q250618