单词 | pyroxene group |
释义 | pyroxene groupnoun : a group of silicate minerals closely related in crystal form and having the general formula ABSi2O6 where A represents usually Ca or Na and B is usually Mg, Fe, or Al that includes the orthorhombic species enstatite and hypersthene and several monoclinic species (as diopside, spodumene, jadeite, acmite, and augite) |
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