Definition of amphiboles Amphiboles

We found 3 definitions of amphiboles from 2 different sources.

What does amphiboles mean?

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Noun Plural: amphiboles
amphibole - a mineral or mineral variety belonging to the amphibole group
		mineral solid homogeneous inorganic substances occurring in nature having a definite chemical composition
		amphibolite a metamorphic rock composed chiefly of amphibole and plagioclase
		amphibole group a group of minerals with similar crystal structures containing a silicate chain and combinations of chiefly sodium and calcium and magnesium and iron and aluminum
		nephrite an amphibole mineral consisting of calcium magnesium silicate in monoclinic crystalline form; a source of jade that is less valuable than from jadeite; once believed to cure kidney disorders
		actinolite a green mineral of the amphibole group; calcium magnesium iron silicate
		anthophyllite a dark brown mineral of the amphibole group; magnesium iron silicate
		asbestos a fibrous amphibole; used for making fireproof articles; inhaling fibers can cause asbestosis or lung cancer

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amphibole (Noun)
A large group of structurally similar hydrated double silicate minerals, containing various combinations of sodium, calcium, magnesium, iron, and aluminium/ aluminum.

amphibole (n.)
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.

amphibole
am-fib′ol-ē, n. the name of a group of minerals which are essentially silicates of lime and magnesia, but these bases are often partly replaced by alumina, and oxides of iron and manganese—tremolite, nephrite (jade), and hornblende. [Gr.]