stibnite
nounEtymology From Latin stibium, from Ancient Greek στίβι (stíbi), a variant of στίμμι (stímmi).
1
A grey mineral, Sb₂S₃, that is the main ore of antimony; in powdered form, used as the cosmetic called kohl.
- The eye-paint used from immemorial times in Egypt is usually held to be stibnite.1955, Robert James Forbes, Studies in Ancient Technology, volume 9, E. J. Brill, page 176: