Semseyite

Facts

Chemical formula

Pb₉Sb₈S₂₁

Crystal system

Monoclinic

Mohs hardness

2.5

Elements in formula

Lead, Antimony, Sulfur

Number of elements

3

IMA status

Grandfathered

Named after

Andor Semsey

Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q419446