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Amphibole Wikipedia

Amphibole (/ ˈ æ m f ɪ b oʊ l /) is an important group of inosilicate minerals, forming prism or needlelike crystals, composed of double chain SiO 4 tetrahedra , linked at the vertices and generally containing ions of iron and/or magnesium in their structures.

Common Types of Asbestos Fibers, Serpentine Amphibole ...

Types Of Asbestos Fibers Chrysotile Asbestos is Common in Consumer Products Asbestos is the generic name for six naturally occurring minerals that have been used in commercial products for their strength, flexibility, low electrical conductivity, and resistance to heat and chemicals.

Asbestiform Minerals and Human Health USGS Archive

Asbestiform Minerals and Human Health. Asbestos is a commercialindustrial term with a long history, and is not a mineralogical definition. ‘‘Asbestos’’ in the latter half of the 20th century became widely used in regulatory language to refer to well developed, long, thin particles (fibers or fibrils) and fiber bundles of specific mineral compositions, …

Asbestos definition and meaning | Collins English Dictionary

Definition of 'asbestos' Word Frequency. ... any of the fibrous amphibole and serpentine minerals, esp chrysotile and tremolite, that are incombustible and resistant to chemicals. It was formerly widely used in the form of fabric or board as a heatresistant structural material b.

amphibole Dictionary Definition :

a grey or green fibrous mineral; an important source of commercial asbestos tremolite a white or pale green mineral (calcium magnesium silicate) of the amphibole group used as a form of asbestos

Asbestos Definition | Asbestos Defined | Define Asbestos

As defined for regulatory purposes, asbestos is a set of six naturally occurring silicate minerals used commercially for their desirable physical properties. This particular page provides an asbestos definition, it will define asbestos and provide additional information regarding what is asbestos.

Am Ind Hyg J. 50( I1):613622 (1989) 4008 The …

The Regulatory and Mineralogical Definitions of Asbestos ... and amphibole mineral groups, which have crystal ... regulatory asbestos definition to bulk and airborne dust samples collected at this mine and reported over 70% asbes tos for airborne fibers satisfying the 3:1 or greater aspect


The group includes chrysotile, a member of the serpentine mineral group, and the amphibole minerals amosite, crocidolite, tremolite asbestos, actinolite asbestos, and anthophyllite asbestos. ... Definition of Asbestos ...

Amphibole | definition of amphibole by Medical …

Potentially shorter latencies of pleural disease among Libby amphibole (LA)exposed workers compared with workers exposed to other forms of asbestos (Larson et al. Current research and opportunities to address environmental asbestos exposures

What does asbestos mean?

Webster Dictionary ( / 0 votes) Rate this definition:. Asbestos (noun). a variety of amphibole or of pyroxene, occurring in long and delicate fibers, or in fibrous masses or seams, usually of a white, gray, or greengray color.

Amphibole Asbestos definition of Amphibole Asbestos …

Amphibole Asbestos synonyms, Amphibole Asbestos pronunciation, Amphibole Asbestos translation, English dictionary definition of Amphibole Asbestos. n. Any of a large group of structurally similar silicate minerals, such as hornblende, that have a crystalline structure consisting of a double chain of...

What Is Asbestos? | Health Risks and Mesothelioma

Actinolite asbestos is a variety of the subclassification of amphibole asbestos and, as such, its makeup and consistency is similar to other forms of this subset. Made predominantly of magnesium, actinolite asbestos is extremely rare and ranges in color from white to dark brown.

Amphibole | Define Amphibole at

Amphibole definition, 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 rocks.

Types of Asbestos Chyrsotile, Actinolite, Tremolite …

Amphibole asbestos has needleshaped fibers, and studies suggest it takes much less exposure to amphibole asbestos to cause cancer, compared to serpentine asbestos. Amosite and crocidolite are the most commercially valuable types of amphibole asbestos, while anthophyllite, tremolite and actinolite are considered noncommercial …

What does amphibole mean? definition, meaning and ...

asbestos (a fibrous amphibole; used for making fireproof articles; inhaling fibers can cause asbestosis or lung cancer) hornblende (a green to black mineral of the amphibole group; consists of silicates of calcium and sodium and magnesium and iron)

Asbestos Wikipedia

The use of all types of asbestos in the amphibole group was banned in much of the Western world by the mid1980s, and in Japan by 1995. [citation needed] Some products that included amphibole types of asbestos included the following:

Amphibole definition of amphibole by The Free …

The two major types of asbestos fibers, serpentine and amphibole, have chemical and structural differences that may influence their interactions with cells. Asbestos fiber shape may trigger radicals Both zones are exposed at the surface and occur as steeply dipping, parallel tabular stockworks of chloritic, amphibole , feldspar gneiss.

Asbestos | definition of asbestos by Medical dictionary

Looking for online definition of asbestos in the Medical Dictionary? asbestos explanation free. What is asbestos? Meaning of asbestos medical term. What does asbestos mean? ... The amphibole asbestos has different physical and chemical properties from chrysotile, states a Natural Resources Canada (NRCan) report.

What does amphibole group mean? definition, …

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)

asbestos | Definition of asbestos in English by Oxford ...

The asbestos minerals include chrysotile (white asbestos) and several kinds of amphibole, notably amosite (brown asbestos) and crocidolite (blue asbestos). The danger to health caused by breathing in highly carcinogenic asbestos particles has led to more stringent control of its use

Amphibole legal definition of amphibole Legal …

Definition of amphibole in the Legal Dictionary by Free online English dictionary and encyclopedia. What is amphibole? Meaning of amphibole as a legal term. What does amphibole mean in law? ... As to the claim of the greater reliability of asbestos body counts by light microscopy, ...


ACCURATE DEFINITIONS FOR ASBESTOS NSSGA POSITION: NSSGA supports sciencebased regulation that prevents harmful exposure to asbestos and all other harmful asbestiform fibers. ... asbestiform winchite amphibole; and; ... Second, an accurate definition for “asbestiform” properly excludes common rock dust, which has not been …

Types of Asbestos: Serpentine vs. Amphibole

Types of Asbestos Asbestos is a group of six minerals that are classified as silicate minerals, composed of fibers that are formally referred to as thin fibrous crystals. In fact asbestos fibers are in most cases somewhat flexible, very durable and have very high levels of resistance to fire.

Chrysotile | definition of chrysotile by Medical dictionary

Looking for online definition of chrysotile in the Medical Dictionary? chrysotile explanation free. What is chrysotile? Meaning of chrysotile medical term. What does chrysotile mean? ... such materials often contain small quantities of amphibole asbestos impurities and even intentionally added amphiboles.

What does asbestos, amphibole mean?

Definition of asbestos, amphibole in the dictionary. Meaning of asbestos, amphibole. What does asbestos, amphibole mean? Information and translations of asbestos, amphibole in the most comprehensive dictionary definitions resource on the web.
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