zincite
/ˈzɪŋkaɪt/
noun
- A rare reddish-orange mineral made of zinc oxide, sometimes used as a gemstone or in early electronics.
- Collectors prize zincite for its bright orange color and rarity.
- The museum displayed a beautiful crystal of zincite from Poland.
- In the 19th century, zincite was used in some early radio detectors.