| 单词 | amphiboles |
| 释义 | amphibole /amˈfi-bōl/ (mineralogy)nounAny mineral of a group of dark-coloured, rock-forming silicates differing from the pyroxenes in cleavage angle (about 56º instead of about 87º), silicates of calcium, magnesium, and other metals, including hornblende, actinolite, tremolite, etc ORIGIN: Gr amphibolos ambiguous, on account of the resemblance between hornblende and tourmaline amphibˈolite noun A rock composed essentially of amphibole |
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