What is the chemical formula for asbestos?
asbestos, any of several minerals that readily separate into long, flexible fibres. Chrysotile, the fibrous form of the mineral serpentine, is the best-known type and accounts for about 95 percent of all asbestos in commercial use. It is a hydrous magnesium silicate with the chemical composition of Mg3Si2O5(OH)4.
Is all tremolite asbestos?
Tremolite asbestos is not mined or used commercially but is a frequent contaminant of chrysotile asbestos, vermiculite, and talc. Therefore, individuals exposed to these materials or to end-products containing these materials may be exposed to tremolite.
How is tremolite made?
Tremolite is a member of the amphibole group of silicate minerals with composition: Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)2. Tremolite forms by metamorphism of sediments rich in dolomite and quartz. Tremolite forms a series with actinolite and ferro-actinolite.
What is actinolite made of?
actinolite, an amphibole mineral in the tremolite-actinolite series of calcium, magnesium, and iron silicates. The minerals in this series are abundant in regionally metamorphosed rocks, such as schists.
What is the chemical symbol of asbestos?
Its idealized chemical formula is Mg3(Si2O5)(OH)4. Chrysotile appears under the microscope as a white fiber. Chrysotile has been used more than any other type and accounts for about 95% of the asbestos found in buildings in America.
What is asbestos chemical?
Asbestos is a generic term for a group of six naturally-occurring, fibrous silicate minerals that have been widely used in commercial products. Asbestos minerals fall into two groups or classes, serpentine asbestos and amphibole asbestos.
What is the chemical composition of crocidolite?
Crocidolite | Fe2H16Mg3Na2O24Si8+14 – PubChem.
What is the chemical formula of chrysotile?
Chrysotile | Mg3Si2H4O9 – PubChem.
Is hornblende a tremolite?
Minerals actinolite–tremolite series are not stable and can easily alter in the chlorites, tremolite, and talc on the Earth’s surface. The hornblende group includes amphibole rich in trivalent iron and aluminum.
What is the formula of talc?
Chemically, talc is a hydrous magnesium silicate with a chemical formula of Mg3Si4O10(OH)2. Talc has many uses in cosmetics and other personal care products.
Does actinolite have asbestos?
The principal forms of asbestos include chrysotile, crocidolite, amosite, tremolite, actinolite, and anthophyllite. All but chrysotile (serpentine form) are classified as amphiboles, which tend to have a thin, needle-like appearance.
What is the meaning of actinolite?
Definition of actinolite : a bright green or grayish-green mineral of the amphibole group that is a silicate of calcium, magnesium, and iron occurring in fibrous, radiate, or columnar forms.