Anthophyllite. Anthophyllite is a mineral that is formed through the metamorphism of magnesium-rich rocks, particularly ultrabasic igneous rocks and impure dolomitic shales. It is an isomorphic mixture of magnesium anthophyllite and ferroanthophyllite. AI generated definition based on: Introduction to Mineralogy and …
The anthophyllite group are orthorhombic amphiboles in the magnesium-iron-manganese amphibole subgroup. The minerals in this root name group may have either Pnma or Pnmn (proto- prefixed name) space group symmetry. The anthophyllite group's composition is defined with A (Na+K+2Ca)<0.5 apfu and C (Al+Fe 3+ +2Ti)<1 apfu. Proto-ferro …
A number of these pieces from an old 60s collection hit the market over the last year. This is one of the more interesting examples. It is very bright under all wavelengths. The Anthophyllite glows red, the Talc blue/white, and the Tremolite orange. I am not sure about the green which is only visible under SW. The specimen is 5" x 3" x …
Of these, only six (actinolite, amosite, anthophyllite, chrysotile, crocidolite, and tremolite) are regulated because, at the time when regulations were introduced, these were the only mineral fi bres used commercially, based on the assumption that only commercial use could lead to widespread substantial human exposure.
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Anthophyllite is an amphibole mineral: (Mg, Fe) 7 Si 8 O 22 (OH) 2, magnesium iron inosilicate hydroxide.Anthophyllite is polymorphic with cummingtonite.Some forms of anthophyllite are lamellar or fibrous and are used as asbestos. The name is derived from the Latin word anthophyllum, meaning clove, an allusion to the most common color of …
Anthophyllite - >99.99 1 Ingredient name % CAS number There are no additional ingredients present which, within the current knowledge of the supplier …
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Anthophyllite Discovered in 1801 in Norway, this mineral's name comes from the Latin word "anthophyllum," meaning "clove," in reference to its common clove-brown color. Amosite, an iron-rich variety of this mineral, occurs …
Anthophyllite is a common component of some metamorphic and metasomatic rocks. Its name comes from the Latin word for clove and is an allusion to its typical and distinct clove-brown color. Although it can be differentiated from other amphiboles by its white to brown color, it is often indistinguishable from other amphiboles such as cummingtonite. ...
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All of the grunerite asbestos fibers counted by ATEM were <5 μm long. To inhale a concentration of fibers similar to the concentration in the lung tissue of the …
Jun 6, 2024. Tom Campbell Wins the Desautels (and the Lidstrom, too!) Tom was thrilled and honored to be awarded both the Desautels Trophy for the "finest individual display of crystallized mineral specimens entered in the show" and the Lidstrom Trophy for "the outstanding single mineral specimen entered in the competition" at the …
anthophyllite End-member (Mg,Fe) 2 (Mg,Fe) 5 [Si 4 O 11] 2 (OH,F) 2, along with gedrite, of the calcium-poor, orthorhombic amphiboles. In anthophyllite Mg > Fe, whereas in gedrite Mg < Fe. It is found exclusively in metamorphic rocks, where it may occur with cordierite. Amosite is the asbestiform variety of anthophyllite.
Anthophyllite 7 Not assigned. 100 Tremolite 7 Not assigned. 100 (a) Hazardous components 1 % or greater; carcinogens 0.1 % or greater are listed in …
Anthophyllite is a mineral formed from the metamorphism of magnesium-rich rocks. It is often associated with other amphibole minerals, pyrope, and cordierite. JACKSON COUNTY: Anthophyllite occurs as long radiating fibrous crystals and masses intergrown with talc at the Jackson County Iron Mine, Sec. 15 T.21N R.3W near Black River Falls. …
A key hazard is the release of fibres from products that contain asbestos as the fibres penetrate respiratory systems and cause asbestosis and carcinogenesis. It is …
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Dissolution experiments of diopside and anthophyllite were conducted in continuously stirred flow-through reactors at temperatures of 25° and 90°C at acid pH. Stoichiometric steady state was reached at ∼2700 h (at 25°) or ∼1000 h (90°C). Specific surface area significantly increased after dissolution of diopside but not anthophyllite.
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Anthophyllite asbestos; Tremolite asbestos; All asbestos occurs naturally in underground deposits. The Environmental Protection Agency (EPA) officially classifies the six asbestiform varieties in the …
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In some talc deposits, tremolite, anthophyllite, and actinolite may occur. Talc containing asbestiform fibres is a term that has been used inconsistently in the literature. In some …
Anthophyllite - (Mg, Fe) 2 (Mg, Fe) 5 Si 8 O 22 (OH, F) 2 Gedrite - (Mg;Fe 2+) 2 [(Mg;Fe 2+) 3 Al 2](Si 6 Al 2)O 22 (OH) 2 Anthophyllite Anthophyllite is a common component of some metamorphic and metasomatic rocks. Its name comes from the Latin word for clove and is an allusion to its typical and distinct clove-brown color. Anthophylite is the ...
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On June 20, 1986, OSHA published in the FEDERAL REGISTER (51 FR 22612) revised final standards for Occupational Exposure to Asbestos, Tremolite, …
Anthophyllite is a rare and intriguing member of the amphibole mineral family, known for its unique fibrous and prismatic crystal formations. Named from the Greek words "anthos" (flower) and "phyllon" (leaf), anthophyllite's name reflects its crystal habit, which can appear leafy or flower-like under certain conditions
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Relief: Moderate positive Habit/Form: Commonly found as euhedral to subhedral columnar, bladed, or acicular crystals, with diamond-shaped cross section typical of amphiboles. Sometimes found as fine to coarse radiating aggregates. There also is an asbestiform variety. Color: Colorless, clove-brown (Fe), yellowish brown (Fe), grayish brown (Fe), …