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amphibole

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amphibole

[′am·fə‚bōl]
(mineralogy)
Any of a group of rock-forming, ferromagnesian silicate minerals commonly found in igneous and metamorphic rocks; includes hornblende, anthophyllite, tremolite, and actinolite (asbestos minerals).
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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References in periodicals archive
The presence of talc and associated amphiboles was more common in women than it was in men (odds ratio, 3.24; 95% CI, 1.65-6.35).
Sumas Mountain chrysotile induces greater lung fibrosis in Fischer 344 rats than Libby amphibole, El Dorado tremolite, and Ontario ferroactinolite.
Interstitial minerals are clinopyroxene, amphibole, phlogopite and ilmenite, together with Na-rich plagioclase overgrowths (Fig.
The classification of amphiboles is based on the composition of the standard amphibole formula [AB.sub.2] [sup.IV][C.sub.5][sup.IV][T.sub.8][[O.sub.2].sub.2] [(OH).sub.2].
The andesites of Noorabad ophiolite in hand specimen and thin section have phenocrysts of plagioclase in a groundmass of clinopyroxene and amphibole minerals.
Most recently, subjects exposed to the Libby, MT, amphibole were shown to have elevated frequency and titers of ANA compared to a reference population [20].
Whether the amphibole fibers from the mining operation constituted asbestos was a hotly disputed issue at trial.
These two types are serpentine and amphibole. In the serpentine variety, the asbestos fibers are curly and flexible.
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