amphibole group

amphibole group
noun
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
• Hypernyms: ↑mineral
• Member Meronyms:

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noun
: a group of minerals (as anthophyllite, tremolite, actinolite, and hornblende) with essentially like crystal structures involving a silicate chain [OH(Si4O11)]n and generally containing three groups of metal ions, the large ions being sodium and calcium, the intermediate being chiefly bivalent iron, magnesium, and manganese, and the small ions chiefly silicon with some aluminum and rarely ferric iron, the general formula for the group being A2B5(Si,Al)8O22(OH)2

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amphibole group,
a group of minerals consisting of amphibole and allied minerals.

Useful english dictionary. 2012.

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Look at other dictionaries:

  • amphibole — /am feuh bohl /, n. Mineral. any of a complex group of hydrous silicate minerals, containing chiefly calcium, magnesium, sodium, iron, and aluminum, and including hornblende, tremolite, asbestos, etc., occurring as important constituents of many… …   Universalium

  • amphibole — noun a mineral or mineral variety belonging to the amphibole group • Hypernyms: ↑mineral • Hyponyms: ↑nephrite, ↑actinolite, ↑anthophyllite, ↑asbestos, ↑hornblende • Member Holonyms: ↑ …   Useful english dictionary

  • Amphibole — (pronounced amfi bowl) defines an important group of generally dark colored rock forming inosilicate minerals, composed of double chain SiO4 tetrahedra, linked at the vertices and generally containing ions of iron and/or magnesium in their… …   Wikipedia

  • amphibole — [am′fə bōl΄] n. [Fr < LL amphibolus, ambiguous < Gr amphibolos < amphiballein, to throw around, doubt < amphi , AMPHI + ballein, to throw: see BALL2] any of a group of rock forming minerals, as hornblende or actinolite, composed… …   English World dictionary

  • amphibole — noun Etymology: French, from Late Latin amphibolus, from Greek amphibolos ambiguous, from amphiballein to throw round, doubt, from amphi + ballein to throw more at devil Date: circa 1823 1. hornblende 2. any of a group of complex silicate… …   New Collegiate Dictionary

  • amphibole — noun A large group of structurally similar hydrated double silicate minerals, containing various combinations of sodium, calcium, magnesium, iron, and aluminium/aluminum …   Wiktionary

  • amphibole — am·phi·bole am(p) fə .bōl n any of a group of complex silicate minerals with like crystal structures that contain calcium, sodium, magnesium, aluminum, and iron ions or a combination of them see crocidolite …   Medical dictionary

  • amphibole asbestos — one of the two major classes of asbestos, characterized by fibers too brittle to be spun but more resistant to chemicals and heat than the serpentine form. It is less widely used than serpentine asbestos and is thought to be much more… …   Medical dictionary

  • amphibole — am•phi•bole [[t]ˈæm fəˌboʊl[/t]] n. mir any of a complex group of hydrous silicate minerals, containing chiefly calcium, magnesium, sodium, iron, and aluminum, and including hornblende, tremolite, asbestos, etc., occurring as important… …   From formal English to slang

  • amphibole — /ˈæmfəboʊl/ (say amfuhbohl) noun any of a complex group of hydrous silicate minerals, containing chiefly calcium, magnesium, sodium, iron, and aluminium, and including hornblende, tremolite, crocidolite, etc., and occurring as important… …  

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