amphibole group


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Noun1.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
References in periodicals archive ?
Collector's Guide to the Amphibole Group covers an important, beautiful set of crystals--the amphiboles--and organizes them in such a way that mineral collectors will understand their properties and structural features.
So far, the study has been focused to blue asbestos (Crocidolite), a part of the amphibole group of asbestos minerals that were used in such products as ceiling tiles and thermal insulation, before being banned in most of the Western world by the mid-Eighties.
The amphibole group of asbestos is listed under the Hazardous Products Act (crocidolite asbestos) with specific regulations pertaining to its import and use.
A chemical analysis would be required to determine the specific member(s) of the amphibole group present.
Crocidolite (riebecite), amosite (grunerite), tremolite, actinolite, and antophyllite are members of the amphibole group of minerals, which form about 5% of all mined asbestos.
And then the alphabetized list, Amphibole Group to Zircon, takes off.
Relationship to other species: It is a member of the amphibole group, calcic subgroup.
1997) classification, and considering the generic formula for the amphibole group, [AB.
Relationship to other species: A member of the amphibole group.
Name: For the approved nomenclature of the Amphibole group.
Name: For the relationship to members of the anthophyllite series of the amphibole group.
Roberta Oberti (1951-), Pavia, Italy, for her contributions to the understanding of the crystal chemistry of the amphibole group.