pyroxenoid
/paɪˈrɑksəˌnɔɪd/
noun
- A mineral that is similar to pyroxene but has a different crystal structure, often found in metamorphic rocks.
- Students in the geology lab learned to distinguish pyroxenoids from true pyroxenes under a microscope.
- Pyroxenoids like wollastonite are used in ceramics and construction materials.
- The geologist identified a rare pyroxenoid in the rock sample from the mountain.