Crocidolite blue asbestos

Mesotheliomas are the characteristic asbestos-related tumours of the pleura. Exposure of explants of human pleura to crocidolite blue asbestos in culture produces a... 

Alario-Franco, M. A., J. L. Hutchison, D, A. Jefferson, and J. R. Thomas (1977). Structural imperfections and morphology of crocidolite (blue asbestos). Nature 266 520—521. 

CROCIDOLITE (Blue Asbestos). The mineral crocidolilc may be considered as u fibrous variety of the monoclinic amphibole. riebeckile. Ii is also known as a massive mineral. Iis hardness is 4 specific gravity, 3.2-3.3 luster, silky to dull color, blue or bluish-green. It is found in Austria, France. Bolivia, the Republic of South Africa (the variety known as tiger s-eye) and in the United States, in Massachusetts and Rhode Island. The name crocidolile is derived from the Greek, meaning to weave, in reference to its fibrous appearance. See also Uat s-Eye. 

Reid A, Ambrosini G, De Klerk N, Fritschi L, and Musk B (2004) Aerodigestive and gastrointestinal tract cancers and exposure to crocidolite (blue asbestos) Incidence and mortality among former crocidolite workers. International Journal of Cancer 111(5) 757-761. 

Double-chain silicates, shown in Figure I5.13f, find some SiO units sharing two oxygens while others share three. The repeating unit is Si40if. Five double-chain silicates [tremolite, anthophyllite, actinolite, amosite ( brown asbestos ), crocidolite ( blue asbestos ), all members of the amphibole family of minerals] and the serpentine mineral chrysotile ( white asbestos ) are classified under the generic name asbestos. The molecular-level chain structure of these materials is reflected in... 

Experience suggests that crocidolite (blue asbestos) is likely to be significantly more dangerous in this respect and this has led to a dramatic reduction in its use. Whereas formerly it was found in thermal insulation materiair roofing material, and even in sprayed asbestos, there is no reason to suppose that it is used in any form in the construction industry at present. However, this does not mean that the risk has disappeared as maintenance, replacement and demolition may expose workers where this material has been used in the past. It is subject to spedal provisions under the asbestos regulations. 

The asbestos minerals are crystalline fibrous silicates, some of which have been exploited commercially, especially as an insulating material. These minerals comprise sheets, or chains of silicate tetrahedra in which oxygen is either bound to two silicon atoms or to one silicon atom, and possesses a negative charge. There are two major groups of asbestos mineral serpentines and amphiboles. White asbestos or chrysotile is a serpentine mineral, whereas the other forms of asbestos, crocidolite (blue asbestos), amosite (brown asbestos), anthophyllite, tremolite, and aetinolite, are amphiboles. Tremolite can also be found as a contaminant in other minerals, such as chrysotile, talc, and vermiculite. 

Blue asbestos, blue cape asbestos Categorical and trade names for crocidolite-as-bestos, which has a pale blue, lavender, or bluish green color en masse. Blue asbestos was a synonym for crocidolite in mineralogy before the term was adopted in the trade. 

Crocidolite-asbestos A trade designation for a specific type of amphibole-asbestos composed of the mineral riebeckitc. It is also called blue asbestos and, if obtained from South Africa, may be labeled cape asbestos. 

Double-chain silicates. Double-chain silicates, (Si40n)n6n, are known as amphiboles, such as tremolite, Ca2Mg5(0H)2[(Si40n)2]. These include the true asbestoses, such as crocidolite or blue asbestos,... 

There are various forms of asbestos and not all are equally hazardous. White asbestos, or chrysotile, is the form most commonly used and is the least harmful, being relatively inert in living systems. Crocidolite, or blue asbestos, is especially hazardous and may contaminate white asbestos. 

SYNS AMORPHOUS CROCIDOLITE ASBESTOS ASBESTOS (ACGIH) BLUE ASBESTOS (DOT) BROWN ASBESTOS (DOT) O CROCIDOLITE ASBESTOS CROCIDOLITE (DOT) FIBROUS CROCIDOUTE ASBESTOS KROKYDOLITH (GERMAN) NCI-C09007... 

Crocidolite— A type of asbestos in the amphibole group it is also known as blue asbestos. 

Muscovite and biotite have very similar compositions. Why is one "white mica" and the other "black mica" In the same vein, talc is white, chrysotile is while asbestos, crocidolite is blue asbestos and amosilc is a gray-bruwm asbestos. 

Asbestos is the term for the fibrous form of a number of naturally occurring crystalline silicate minerals, which have been exploited commercially and are still mined and processed in various countries such as South Africa, Canada, the Former Soviet Union and China. The three main types of asbestos that have been commercially produced are Chrysotile, Amosite and Crocidolite, which are commonly referred to as White, Brown and Blue asbestos respectively. Other rarer forms of asbestos include Tremolite, Anthophyllite and Actinolite, which may be found either individually or as contamination within the three main types. 

SYNONYMS Chrysotile, amosite, crocidolite, tremolite, anthophyllite, actinolite, tremolite, actinolite, serpentine chrysotile, white asbestos, blue asbestos. 

Actinolite Amosite Anthophyllite Asbestos Asbestos, blue, 9 Asbestos, brown Asbestos, white, 9 Blue asbestos Blue asbestos (crocidolite), 9 Brown asbestos (amosite, mysorite), 9 Chrysotile Crocidolite Mysorite Talcum with tremolite and/or actinolite Tremolite White asbestos White asbestos (chrysotile, actinolite, anthophyllite, tremolite), 9... 

Riebeckite or glaucophane, including crocidolite (12001-28-4) syn. blue asbestos. 

Asbestos. Asbestos is a generic name for naturally occurring mineral silicate fibres of the Serpentine and Amphibole series. In the Serpentine series is Chrysotile, commonly kno m as white asbestos. In the amphibole series are Actinolite, Amosite or Mysorite (commonly known as brown asbestos), Anthophyllite, Crocidolite (commonly known as blue asbestos) and Tremolite. All types of asbestos can be hazardous to health, blue and brown asbestos being the more dangerous types. ICAO A2... 

Blue asbestos (crocidolite) n. An iron-rich form of asbestos, fibers of which were long used in reinforced plastics when good chemical resistance was essential. 

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