Definition of empressite in English:

empressite

noun

Mineralogy
  • A rare mineral consisting of silver telluride, typically occurring as small bronze-coloured crystals.

Origin

Early 20th century. From the name of the EmpressJosephine mine, Colorado, where the mineral was first found + -ite.

Pronunciation

empressite

/ˈɛmprɪsʌɪt/