Pronunciations (4)
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/paɪˈɹɒk.siːn/
Pronunciation notes
- UK
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/paɪˈɹɑk.sin/
Pronunciation notes
- US
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paɪˈɹɒksiːn
Pronunciation notes
- GB
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paɪˈɹɑksin
Pronunciation notes
- US
Noun
Any of a group of crystalline minerals containing silicates of iron, magnesium and calcium.
- Examples
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More examples (1)
By the pathside, there are occasional large boulders that shown black crystals the size of a fingernail; these are pyroxene minerals that had time to crystallise out deep within the chamber of liquid rock – or magma – beneath the volcano.
Noun
any of a group of crystalline silicate mineral common in igneous and metamorphic rocks
- Broader terms