from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Lead telluride, an isometric yellowish-white mineral of the galena group.
from The Century Dictionary and Cyclopedia
- n. A mineral found originally in the Altai mountains, and now also in California, Colorado, and Chili; a telluride of lead.
Altai Mountains, where it was discovered + -ite. (Wiktionary)