noun
- plural of niccolite; a nickel arsenide mineral that is an important ore of nickel
Usage: mineralogy
Examples
- The geologist identified several niccolites in the rock sample.
- Niccolites are commonly found in hydrothermal veins.
- The mining company extracted nickel from local niccolites.
- These niccolites have a distinctive copper-red color.
- The mineral collection included various niccolites from different regions.