crookesite

[ krook-sahyt ]

noun
  1. a rare mineral, selenide of copper, thallium, and silver, (Cu, Tl, Ag)2Se, occurring in steel-gray, compact masses.

Origin of crookesite

1
1865–70; after Sir W. Crookes; see -ite1

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024