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  2. Tremolite - Wikipedia

    en.wikipedia.org/wiki/Tremolite

    Pure magnesium tremolite is creamy white, but the color grades to dark green with increasing iron content. It has a hardness on Mohs scale of 5 to 6. Nephrite, one of the two minerals known as the gemstone jade, is a green crystalline variety of tremolite. The fibrous form of tremolite is one of the six recognised types of asbestos.

  3. Asbestos - Wikipedia

    en.wikipedia.org/wiki/Asbestos

    Asbestos (/ æ s ˈ b ɛ s t ə s, æ z-,-t ɒ s / ass-BES-təs, az-, -⁠toss) [1] is a group of naturally occurring, toxic, carcinogenic and fibrous silicate minerals.There are six types, all of which are composed of long and thin fibrous crystals, each fibre (particulate with length substantially greater than width) [2] being composed of many microscopic "fibrils" that can be released into ...

  4. Agency for Toxic Substances and Disease Registry - Wikipedia

    en.wikipedia.org/wiki/Agency_for_Toxic...

    The purpose of the registry was to monitor the long-term health effects of people in Libby exposed to tremolite asbestos and to assist with communicating important health information to registrants. Researchers have used the registry to study how asbestos exposure affects human health. [38] This research has yielded several important findings.

  5. Special report: J&J knew for decades that asbestos lurked in ...

    www.aol.com/news/special-report-j-j-knew...

    An examination shows that from at least 1971 to the early 2000s, products sometimes tested positive for small amounts of asbestos.

  6. Actinolite - Wikipedia

    en.wikipedia.org/wiki/Actinolite

    Actinolite is an intermediate member in a solid-solution series between magnesium-rich tremolite, Ca 2 (Mg 5.0-4.5 Fe 2+ 0.0-0.5)Si 8 O 22 (OH) 2, and iron-rich ferro-actinolite, ☐Ca 2 (Mg 2.5-0.0 Fe 2+ 2.5-5.0)Si 8 O 22 (OH) 2. Mg and Fe ions can be freely exchanged in the crystal structure. Like tremolite, asbestiform actinolite is ...

  7. Metsovo lung - Wikipedia

    en.wikipedia.org/wiki/Metsovo_Lung

    Metsovo lung was an epidemic of lung disease resulting from domestic exposure to asbestos in the village of Metsovo in northwest Greece. Most of the inhabitants had previously been exposed to a whitewash derived from local soils containing tremolite asbestos.

  8. Health impact of asbestos - Wikipedia

    en.wikipedia.org/wiki/Health_impact_of_asbestos

    A great deal of Fairfax County, Virginia was also found to be underlaid with tremolite. The county monitored air quality at construction sites, controlled soil taken from affected areas, and required freshly developed sites to lay 6 inches (150 mm) of clean, stable material over the ground. [22]

  9. Nephrite - Wikipedia

    en.wikipedia.org/wiki/Nephrite

    Nephrite is a variety of the calcium, magnesium, and iron-rich amphibole minerals tremolite or actinolite (aggregates of which also make up one form of asbestos). The chemical formula for nephrite is Ca 2 (Mg, Fe) 5 Si 8 O 22 (OH) 2. [1] It is one of two different mineral species called jade.

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