noun
- a dark green to black mineral consisting of magnesium iron silicate, commonly found in igneous and metamorphic rocks
Usage: geology
Examples
- The geologist identified hypersthene crystals in the volcanic rock sample.
- Hypersthene is an important component of many mafic igneous rocks.
- The dark mineral grains in the gabbro were determined to be hypersthene.
- Students learned to distinguish hypersthene from other pyroxene minerals.
- The meteorite contained significant amounts of hypersthene and olivine.
- Hypersthene exhibits a distinctive bronze-like luster on cleavage surfaces.