sphalerite

The primary ore of zinc, occurring in usually yellow-brown or brownish-black crystals or cleavage masses, essentially ZnS with some cadmium, iron, and manganese.

The native zinc sulphid more familiarly known as zinc-blende. See blende.

Zinc sulphide; — called also blende, black-jack, false galena, etc. See blende (a).

an ore that is the chief source of zinc; consists largely of zinc sulfide in crystalline form