WebAug 23, 1996 · Occupational Exposure to Asbestos, Tremolite, Anthophyllite and Actinolite; Publication Date: 08/23/1996. Publication Type: Final Rule. Fed Register #: 61:43454-43459. Standard Number: 1910 1915 1926 Title: Occupational Exposure to Asbestos, Tremolite, Anthophyllite and Actinolite. Tremolite is a member of the amphibole group of silicate minerals with composition: Ca2(Mg5.0-4.5Fe 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. Pure magnesium tremolite is creamy white, but the color grades to dark green with increasing iron content. It has a hardness on Mohs …
Actinolite Mineral Data
WebMineralogy [ edit] Actinolite is an intermediate member in a solid-solution series between magnesium-rich tremolite, Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)2, and iron-rich ferro-actinolite, ☐Ca2(Mg2.5-0.0Fe2+2.5 … WebOther articles where tremolite-actinolite series is discussed: amphibole: Chemical composition: …exist between anthophyllite and the tremolite-actinolite series. Compositional gaps also exist between the cummingtonite-grunerite series and other calcic amphiboles. Consequently, coexisting pairs of anthophyllite-tremolite and grunerite-ferroactinolite are … azure migrate 手順 エージェントベース
Mindat.org - Mines, Minerals and More
Webasbestos, including one small past producer of mass-fiber tremolite asbestos in Utah−the Tremolite no. 1 mine. In the Southwestern U.S., tremolite and actinolite are commonly reported in the contact-metamorphic (skarn) zone of metallic ore deposits, which formed where an igneous body intruded and metamorphosed a magnesium-bearing carbonate rock. http://geologyscience.com/minerals/tremolite/ WebNaturally Occurring Asbestos (NOA) Asbestos in its natural form can be blue (crocidolite), brown (amosite), green (anthophyllite tremolite and actinolite) or white (chrysotile, tremolite and actinolite). Known as Naturally Occurring Asbestos or NOA, it’s found in some rocks, sediments and in soils in various regions of NSW and is not easily ... 北海道 コロナ 対策強化宣言