1. a group of dark-colored silicate minerals that are common in igneous and metamorphic rocks
Usage: geology

Examples

• The volcanic rock contained large crystals of pyroxene.
• Pyroxene minerals are abundant in basalt and gabbro.
• The geologist identified pyroxene in the meteorite sample.
• Augite is the most common type of pyroxene found in igneous rocks.
• The dark green pyroxene crystals were easily visible in the thin section.
• Pyroxene forms at high temperatures during rock crystallization.