A class of asbestos that includes silicates of magnesium, iron, calcium, and sodium. Serpentine vs Amphibole Asbestos: Uses and Dangers . Human health assessment information on a chemical substance is included in IRIS only after a comprehensive review of toxicity data by U.S. EPA health scientists from several program offices, regional offices, and the Office of Research and Development. or amphibole minerals with current or historical commercial usefulness due to their extraordinary tensile strength, poor heat conduction and relative resistance to chemi - cal attack. Asbestos Types. translation and definition "amphibole", English-French Dictionary online. Related words - amphibole synonyms, antonyms, hypernyms and hyponyms. C57BL/6 mice were exposed by oropharyngeal aspiration to fiber suspensions at a very low dose of 3μg/mouse. The term amphibole asbestos refers to the remaining five types of the mineral, differentiated from chrysotile which falls into the serpentine class. While amphibole asbestos deposits occur in mafic and ultramafic provinces, soil amphiboles occur evenly distributed across the U.S.A. amphibole is turned into an adjective and used as a pre x to the word asbestos: anthophyllitic asbestos, tremolitic asbestos . Asbestos, Amphibole "Asbestos, Amphibole" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus, MeSH (Medical Subject Headings) . ἄσβεστος, asbestos, „unvergänglich”) ist eine Sammelbezeichnung für verschiedene, natürlich vorkommende, faserförmige Silikat-Minerale.Die Faser des Magnesioriebeckits oder Krokydoliths aus der Gruppe der Hornblenden (auch Blauasbest genannt) ist bläulich, die Faser des Chrysotils (Serpentingruppe) ist weiß oder grün. Meaning of asbestos, amphibole. Definition of asbestos, amphibole in the Definitions.net dictionary. PDF | On Jan 1, 2001, M. E. Gunter and others published Amphibole-Asbestos, Vermiculite Mining and Libby, Montana: What's in a Name? Fibrous amphibole asbestos from Libby (LAA) is composed of winchite (70%), richterite (9%), tremolite (5%), and non-amphibole minerals (16%) with a mean aspect ratio of 8.4±0.7. Sources of these fibrous amphiboles are several plutons in southern Nevada and Arizona and alluvial fans emanating from asbestos-containing bedrock. The regulated amphiboles (riebeckite asbestos, grunerite asbestos, anthophyllite asbestos, tremolite asbestos, and actinolite asbestos) ... by serially increasing ages at low temperature steps that climb to a plateau-like segment yielding a weighted mean age of 211.8 ± 1.4 Ma. Asbestos definition, a fibrous mineral, either amphibole or chrysotile, formerly used for making incombustible or fireproof articles. Descriptors are arranged in a hierarchical structure, which enables searching at various levels of specificity. ‘asbestos shingles’ ‘The inhalation of amphibole asbestos is now widely recognized as being highly dangerous to human health.’ ‘But his lungs lost the battle for health years ago when he worked with blue asbestos fibres, insulating for the telephone company.’ Humans have used asbestos for at least 10,000 years for just about everything. Identification. Asbestos is a naturally occurring mineral and comes in both many types and even colors. am•phib•o•ly (æmˈfɪb ə li) n., pl. The five other forms of asbestos belong to the inosillicates family and are members of the amphibole group. Amphibole fibres (crocidolite -blue asbestos, amosite- brown asbestos, tremolite, actinolite and anthophyllite) are brittle fibres and are often rod- or needle-like in appearance. amphibole . asbestos definition in English dictionary, asbestos meaning, synonyms, see also 'asbestosis',assets',asbestine',asst'. Definition of amphibole in the Fine Dictionary. After seven months, both LAA- and AzA-exposed mice had indices of chronic immune dysfunction … amphibole { noun feminine } Large group of similar hydrated double silicate minerals. noun amphibole any of a large group of minerals consisting of the silicates of calcium, iron, magnesium, sodium, and aluminium, usually in the form of long slender dark-coloured crystals. What does asbestos, amphibole mean? -lies. Whoever you believe, chrysotile asbestos is known to be a carcinogen and a leading cause of on-the-job illness and fatality. from uncertainty of the grammatical construction rather than of the meaning of the words, as in The Duke yet lives that Henry shall depose. Where the chemical composition of the amphibole is kno wn, the • Some confusion has arisen over the definition of amphibole asbestos which has led to the wrong impression that both forms of the amphiboles are the same and equally hazardous. Owing to health hazards, notably from inhalation, use of asbestos has been restricted. The principal varieties of asbestos are chrysotile, a serpentine material, and crocidolite, amosite, anthophyllite, tremolite and actinolite, which are amphiboles (4). Meaning of amphibole with illustrations and photos. The asbestos fibers had dimensions consistent with those reported for air samples from actual amphibole asbestos operations, and the cleavage fragments were also dimensionally consistent with those found in non-asbestos mining and milling operations. Amosite was found in 10 lungs and crocidolite in 9; the average ratio of amosite to crocidolite was approximately 14:1. ambiguity of speech, esp. All asbestos fibers are hazardous to human health. Some of these have even historically been cut and polished like gemstones. Pronunciation of amphibole and its etymology. Asbestos is generally made up of fiber bundles which easily separate into long, thin fibers. However, asbestos has seen a large amount of commercial use in the construction world and has been linked to numerous health problems that can lead to breathing … Ranging from cooking pots to insulating production materials. Libby Amphibole asbestos; CASRN Not Applicable . Libby Amphibole asbestos IRIS Summary (PDF) (35 pp, 381 K) Fact sheet and frequent questions for the Libby Amphibole asbestos assessment: Science in Action: IRIS Final Assessment of Libby Amphibole asbestos (PDF) (1 pp, 276 K) Libby Amphibole asbestos Frequently Asked Questions (PDF) (3 pp, 276 K) Included in the definition are chrysotile; crocidolite, asbestiform grunerite (amosite); anthophyllite asbestos: tremolite asbestos: and actino- lite asbestos. asbestos: Any of six incombustible, chemical-resistant, fibrous minerals of impure magnesium silicate, occurring in either serpentine or amphibole form and used historically in many products, including fireproofing, electrical insulation, building materials, brake linings, and chemical filters. Thousands of lawsuits and billions of pounds in compensation later, the dangers of asbestos in talc-containing cosmetics are now firmly in the public eye. amphibole asbestos mineral, in rock, soil, and dust that can be transported by wind, water, cars, or on clothing after outdoor recreational activities. | Find, read and cite all the research you need on ResearchGate Define amphibole asbestos. Amphibole Asbestos synonyms, Amphibole Asbestos pronunciation, Amphibole Asbestos translation, English dictionary definition of Amphibole Asbestos. Asbest (altgriech. Define Amphibole Asbestos. It is decidedly not safe. and amphibole mineral groups, which have crystal- lized in the asbestiform habit causing them to be easily separated into long, thin, flexible, strong fibers when crushed or processed. Here, Cosmetics Business investigates why the picture surrounding the natural mineral is so muddied and serious questions remain unanswered Changing amphibole nomenclature, uncertainties in Fe +2 /Fe +3, and natural compositional variability result in samples of the asbestiform amphibole from Libby being variably classified as soda tremolite, richterite, sub-calcic actinolite, and winchite. Positive identification of a specific fiber type requires microscopic analysis and examination. These other five types of asbestos that have been identified and mined commercially include amosite, a trade name name given to brown asbestos that is found in South African mines. Enrich your vocabulary with the English Definition dictionary Information and translations of asbestos, amphibole in the most comprehensive dictionary definitions resource on the web. The fibers are generally brittle and cannot be spun, but are... | Review and cite AMPHIBOLE ASBESTOS … All Free. Learn more about the history of asbestos and … amphibole - WordReference English dictionary, questions, discussion and forums. Serpentine asbestos develops in a layered or tiered form, whereas amphibole asbestos has a chain-like structure. Indeed, many sources regard chrysotile asbestos as being just as dangerous as amphibole asbestos. Asbestos definition: Asbestos is a grey material which does not burn and which has been used as a protection... | Meaning, pronunciation, translations and examples Example sentences containing amphibole The use of asbestos and exposure to it has serious health consequences. But the talc industry remains notoriously shrouded, with disagreements and contestations at every turn. asbestos sheet definition in English dictionary, asbestos sheet meaning, synonyms, see also 'asbestosis',assets',asbestine',asst'. means any of the following minerals, namely crocidolite, amosite, fibrous actinolite, fibrous anthophyllite, fibrous tremolite and any mixture containing any of those minerals; Type: noun; Copy to clipboard; Details / edit; Open Multilingual Wordnet. Numbers and sizes of fibers from the lungs of 10 patients who had an amphibole asbestos-induced malignant pleural mesothelioma were analyzed. Is chrysotile asbestos still used and where? See more. Enrich your vocabulary with the English Definition dictionary Amphibole Asbestos. , asbestine ', asbestine ', asbestine ', asst ' remaining five types of amphibole... Suspensions at a very low dose of 3μg/mouse of amosite to crocidolite was approximately 14:1 at 10,000. 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