单词	amphibole group
释义	amphibole group noun : a group of minerals (as anthophyllite, tremolite, actinolite, and hornblende) with essentially like crystal structures involving a silicate chain [OH(Si4O11)]n and generally containing three groups of metal ions, the large ions being sodium and calcium, the intermediate being chiefly bivalent iron, magnesium, and manganese, and the small ions chiefly silicon with some aluminum and rarely ferric iron, the general formula for the group being A2B5(Si, Al)8O22(OH) 2 Word History First Known Use 1828, in the meaning defined above
随便看	eriocaulons eriochalcite Eriococcidae eriodictya eriodictyons eriogona eriogonum eriogonums eriometer eriometers erionite eriophora eriophorum eriophorums Eriophyes eriophyid Eriophyidae eriophyids eriophylla eriophyllous eriophyllums eriosomae eriosomas eriosomata Eriosomatidae

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