辉锑铅矿

[ noun ]
a steel grey metallic mineral (a sulphide of lead and antimony)
<noun.substance>

Zinkenite \Zink"en*ite\ (-en*[imac]t), n. [From Zinken, director
at one time of the Hanoverian mines.] (Min.)
A steel-gray metallic mineral, a sulphide of antimony and
lead.