1. a copper-red mineral consisting of nickel arsenide, used as an ore of nickel
Usage: mineralogy

Examples

• The geologist identified niccolite in the rock sample from the mine.
• Niccolite is an important source of nickel for industrial applications.
• The mineral collection included a specimen of niccolite with its characteristic copper-red color.
• Mining operations extracted niccolite along with other nickel-bearing ores.
• The niccolite deposit was discovered in the northern region of the province.