orthopyroxene

Noun

Meaning

orthopyroxene (plural orthopyroxenes)

(mineralogy) Any pyroxene that forms orthorhombic crystals.

Examples

Alkali basalts typically have mineral assemblages that lack orthopyroxene but contain olivine. Source: Internet

In contrast, Mg-rich olivine does not occur stably with silica minerals, as it would react with them to form orthopyroxene ((Mg,Fe) 2 Si 2 O 6 ). Source: Internet

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