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|Noun||1.||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|
mineral - solid homogeneous inorganic substances occurring in nature having a definite chemical composition
amphibole - a mineral or mineral variety belonging to the amphibole group
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
tremolite - a white or pale green mineral (calcium magnesium silicate) of the amphibole group used as a form of asbestos
hornblende - a green to black mineral of the amphibole group; consists of silicates of calcium and sodium and magnesium and iron
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