noun
- a coarse-grained igneous rock composed mainly of olivine and pyroxene, found in the Earth’s mantle
Usage: geological
Examples
- The geologist identified the rock sample as peridotite based on its mineral composition.
- Peridotite is believed to make up much of the Earth’s upper mantle.
- The volcanic eruption brought fragments of peridotite to the surface.
- Scientists study peridotite to understand the composition of the Earth’s interior.
- The green color of peridotite comes from its high olivine content.
- Diamond-bearing peridotite pipes are important sources of gemstones.