noun
- a dark gray to black mineral consisting of manganese oxide hydroxide
Usage: mineralogy
Examples
- The geologist identified manganite crystals in the rock sample.
- Manganite is an important ore mineral for manganese extraction.
- The museum’s mineral collection includes several specimens of manganite.
- Manganite typically forms in low-temperature hydrothermal environments.
- The dark metallic luster helped identify the mineral as manganite.