smaltite
/ˈsmɔltaɪt/
noun
- A grayish-white mineral composed of cobalt, arsenic, and iron, often used as a source of cobalt.
- Smaltite was once an important ore for producing blue pigments and cobalt salts.
- The geologist identified smaltite in the rock sample by its metallic luster and high density.
- Miners extracted smaltite from the vein and shipped it to the refinery for cobalt processing.