|
actinolite n. 阳起石 阳起石 actinolite n 1: a green mineral of the amphibole group; calcium magnesium iron silicateActinolite \ Ac* tin" o* lite\, n. [ Gr. ?, ?, ray - lite.] ( Min.) A bright green variety of amphibole occurring usually in fibrous or columnar masses. [ 1913 Webster]
Amphibole \ Am" phi* bole\ ([ a^] m" f[ i^]* b[= o] l), n. [ Gr. ' amfi` bolos doubtful, equivocal, fr. ' amfiba` llein to throw round, to doubt: cf. F. amphibole. Ha[" u] y so named the genus from the great variety of color and composition assumed by the mineral.] ( Min.) A common mineral embracing many varieties varying in color and in composition. It occurs in monoclinic crystals; also massive, generally with fibrous or columnar structure. The color varies from white to gray, green, brown, and black. It is a silicate of magnesium and calcium, with usually aluminium and iron. Some common varieties are { tremolite}, { actinolite}, { asbestus}, { edenite}, { hornblende} ( the last name being also used as a general term for the whole species). Amphibole is a constituent of many crystalline rocks, as syenite, diorite, most varieties of trachyte, etc. See { Hornblende}. [ 1913 Webster]
|
安装中文字典英文字典查询工具!
中文字典英文字典工具:
英文字典中文字典相关资料:
|