A black crystalline variety of pyroxene, n.
单词 | θ6879 |
释义 | the world > the earth > minerals > types of mineral > silicates > inosilicates single chain > [noun] > pyroxene > clinopyroxenes > others (4) hedenbergite1822 A black crystalline variety of pyroxene, n. manganhedenbergite1887 A variety of hedenbergite containing 6.5 per cent manganese oxide. pigeonite1900 A mineral that is a silicate of magnesium, ferrous iron, and calcium, (Mg,Fe2+,Ca)2Si2O6, being a monoclinic calcium-poor pyroxene substantially free… johannsenite1932 A brown, greyish, or greenish silicate of calcium and manganese, CaMnSi2O6, which often occurs with partial substitution of ferrous iron for… |
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