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mining asbestos vermiculite

Abestos, Vermiculite & Mining – Greenstream Environmental

 · The problem is that most of North America''s supply of vermiculite comes from a now infamous mine in Libby, Montana – one that was found to be contaminated with asbestos. In addition to the vast number of residential, commercial and industrial buildings that became tainted with asbestos, the people of Libby have and continue to pay the price with their health.

Exposure to asbestos-containing vermiculite ore and respiratory symptoms among individuals who were children while the mine …

1. Environ Health Perspect. 2010 Jul;118(7):1033-28. doi: 10.1289/ehp.0901680. Epub 2010 Mar 12. Exposure to asbestos-containing vermiculite ore and respiratory symptoms among individuals who were children while the mine was active in Libby, Montana.

Vermiculite Asbestos Properties & Use | Mesowatch

 · Vermiculite is mineral with a high level of silica content. In its unprocessed form, vermiculite appears shiny and flaky, similar to the mineral mica. Technically, vermiculite is not a form of asbestos, but many sources of vermiculite were known to have contained high levels of asbestos.


In response, other mines began to test regularly for asbestos, and were checked regularly by MSHA (Mining Safety Health Administration). Meanwhile, there has been no evidence that the presence of expanded Libby vermiculite in homes across the country does or has ever caused health problems.

Asbestos, Mines and Vermiculite Processing In Arizona

 · If you''re a gardener who loves the value for money and versatility that vermiculite provides, then no, you shouldn''t be worried. Not only was Zonolite branded vermiculite not sold in New Zealand, but no other mines were shown to have asbestos in them either. This product is asbestos-free and always has been in New Zealand.

Mining Asbestos Vermiculite

Mining Asbestos Vermiculite Since a majority of all vermiculite came from the contaminated montana mines its best to treat it the same as known asbestos containing materials just like other asbestos containing materials the best practice is to not do anything ...

mining asbestos vermiculite

 · Asbestos Mines - Vermiculite Mining Asbestos 2020-1-20 Vermiculite can contain many other minerals, including asbestos. However, not all vermiculite is contaminated. One prominent vermiculite mine in Libby, Montana, was tainted with asbestos and became

Palabora US | Vermiculite Mining | USA

Palabora America Ltd. is the USA sales subsidiary of Palabora Mining Company (PMC). PMC produces copper as a primary product together with by-products including magnetite, nickel sulphate, uranium, anode slimes and sulphuric acid. Industrial minerals production produces vermiculite.

Asbestos & Vermiculite Removal | Maple Leaf Mold

Vermiculite was mined from the Libby Mine in Montana and from several mines in South Africa. It is the vermiculite that came from the Libby Mine that contains harmful asbestos fibers. There are two distinct types of Vermiculite insulation, it may resemble expanded multi …

Management of Asbestos in Asbestos Fibres Zonolite®

mine and marketed under the brand name "Zonolite" has been shown to contain a type of amphibole asbestos fibre, commonly called tremolite. Vermiculite from the Libby mine has not been utilized in Canada since it''s closure in 1990. Asbestos contaminated

Should you be worried about vermiculite and asbestos | Chemcare

 · If you''re a gardener who loves the value for money and versatility that vermiculite provides, then no, you shouldn''t be worried. Not only was Zonolite branded vermiculite not sold in New Zealand, but no other mines were shown to have asbestos in them either. This product is asbestos-free and always has been in New Zealand.

Asbestos in Vermiculite

Asbestos in Vermiculite Vermiculite was mined in Libby, Montana, from the 1920s until the mine closed in 1990. While in operation, the mine in Libby produced most of the world''s supply of vermiculite. Vermiculite has been used in building

Protect Your Family from Asbestos-Contaminated Vermiculite …

 · Concerns about Asbestos-contaminated Vermiculite Insulation A mine near Libby, Montana, was the source of over 70 percent of all vermiculite sold in the United States from 1919 to 1990. There was also a deposit of asbestos at that mine, so the vermiculite from Libby was contaminated with asbestos.

An overview of the mining history, geology, mineralogy, and amphibole-asbestos …

Vermiculite and Asbestos Company were the first commercial ventures of the vermiculite deposits at Libby. In 1948, these two companies merged to become the Zonolite Company. The processes involved in mining and milling the vermiculite did not change


One vermiculite mine operated by W. R. Grace and Company in Libby, Montana exposed workers and community residents to danger by mining vermiculite contaminated with asbestos, typically richterite, winchite, actinolite or tremolite.


Vermiculite is a mineral used in construction (e.g. insulation), consumer (e.g., potting soil) and industrial products (e.g., brake lining/shoe) that is not known to have any serious health effects. Most of the vermiculite used in the US prior to the 1990s came from one mine in Libby, Montana. Products from that Montana mine also contained ...

Vermiculite Insulation Asbestos Removal Cost | Asbestos …

 · Asbestos Removal and Vermiculite Insulation, asbestosdefinition | Using Vermiculite Insulation to reduce insulation costs is an affordable option for many homeowners. But if your home is contaminated with asbestos, or if you have symptoms of mesothelioma, it''s very important to discuss with a qualified professional before you start using vermiculite in your home.


Vermiculite Insulation and Asbestos – Microscopic Minute

 · Asbestos minerals are also mined from the ground and were contaminating the vermiculite deposits in a mine located near Libby, Montana (please see our blog post Asbestos – The Basics). This mine started in the 1920s, with the vermiculite sold under the name Zonolite.

The Danger in Your Garden

 · Asbestos ore is made up of long, thin fibers that can only be seen through a microscope. When these tiny fibers become airborne, they can be inhaled into the lungs, where they might eventually cause asbestosis, lung cancer, and even the deadly asbestos cancer mesothelioma. Vermiculite was first identified in 1881 in a mine near Libby, Montana.

Does vermiculite in the UK contain asbestos?

 · Asbestos is associated with older properties, and although modern homes are constructed without any asbestos being used, in homes that were built before 1990 there is a good chance that the insulation type used in the loft is vermiculite, and is therefore contaminated with asbestos.


 · Occurrences of asbestos, vermiculite, corundum, magnesite and talc, are typically associated with Pan-African ultramafic rocks such as peridotite, serpentinite, gabbro, and norite. Migif-Hafafit area in the Eastern Desert of Egypt contains asbestos-vermiculite deposits at several sites, occurs in the magnesium-rich metapelitic schist-ultramafic complex.

Libby, Montana — The Asbestos Outbreak

 · Decades of mining the vermiculite exposed workers and residents to toxic asbestos dust. When W.R. Grace & Company took over operation of the mines in 1963, it knew the vermiculite was contaminated with asbestos and that it caused health complications. But they didn''t warn anyone, so mining continued.

No, Today''s Vermiculite Doesn''t Contain Asbestos – Laidback …

 · To date, no other vermiculite mines have been found to contain asbestos and periodic tests are done to make sure it stays that way. As a result, you can safely use any growing mix presently sold that contains vermiculite and be sure it is asbestos-free. That is, unless you have bags of potting soil dating back to before 1990 and which come from ...

Best Practices Program

The Best Practices Program for Asbestos Detection and Control Protocol: Vermiculite Mining and Milling promotes mining operations that are following proper protocol for asbestos detection and control. This program requires participants to follow specific

Asbestos in Vermiculite

Asbestos in Vermiculite - IDPH

Vermiculite Consumer Products

Background Insulation Vermiculite Consumer Products Vermiculite is a naturally occurring mineral compound composed of shiny flakes, resembling mica. When heated to a high temperature, flakes of vermiculite expand as much as 8-30 times their original size.

Mining Companies and Asbestos Exposure | Mesowatch

 · Vermiculite miners, talc miners, coal miners, diamond miners and more all face the deadly consequences of mining companies and asbestos exposure. Miners may also risk asbestos exposure from equipment and cabling insulation they use. Industries like


vermiculite mining operation called the "Zonolite Company." Over time, vermiculite became a product used in insulation, feed additives, fertilizer and soil amendments, construction materials, absorbents and packing materials. Many people used vermiculite

Vermiculite Asbestos Properties & Use | Mesowatch

Vermiculite Asbestos Properties. Vermiculite minerals have a high magnesium and iron content as well as an extremely high clay content. In fact, most commercially mined vermiculites have a 2:1 clay content. When heated, vermiculite flakes expand rapidly, reaching up to eight to 30 times their original size. This property has created demand for ...

Asbestos Mines

 · Asbestos mining ended in the U.S. in 2002, but it continues in certain countries, including Russia, Kazakhstan and China. According to a 2021 article published in the Journal of Occupational Medicine and Toxicology, worldwide asbestos mining and

Asbestos Vermiculite

However, during investigation and cleanup of vermiculite mine in Libby, Montana, it was discovered that this type of asbestos often occurs at unregulated concentrations (0.1-1%) in vermiculite. However, some have estimated that toxicology data indicate this form of asbestos is …

Vermiculite, respiratory disease, and asbestos exposure in …

Background: Vermiculite from the mine near Libby, Montana, is contaminated with tremolite asbestos and other amphibole fibers (winchite and richterite). Asbestos-contaminated Libby vermiculite was used in loose-fill attic insulation that remains in millions of homes in …

Vermiculite Mining Asbestos Exposure Risks | Mesothelioma Book

Those who have worked in vermiculite mining may have an increased risk of developing mesothelioma cancer from asbestos exposure on the job site. Much like asbestos, vermiculite is a naturally occurring mineral that is fire-resistant and lightweight. When exposed ...

EPA/Asbestos/Vermiculite Fact Sheet

Vermiculite ores often contain a range of other minerals including, in some cases, asbestos. Asbestos is not a major contaminant, and only a few ore deposits have been found to contain more than trace amounts of asbestos minerals. However, exposure to

Survey Safe® :: Asbestos in vermiculite

Worryingly, Vermiculite ore that is extracted from the Libby Mine in Libby, Montana in the United States of America may contain asbestos. The United States Environmental Protection Agency has stated that vermiculite from the Libby Mine should be considered to be contaminated with asbestos. The Libby mine in Montana has been closed since 1990.

Asbestos Exposure in Mining | Mesothelioma

 · Vermiculite Mining and Libby, Montana Asbestos exposure is a danger in all types of mining; however, vermiculite mining is especially risky. Vermiculite is a group of minerals that often contains contaminating minerals, including asbestos.

Does My Vermiculite Contain Asbestos?

 · Vermiculite materials that are distributed under the brand Zonolite were discovered to contain Tremolite-Actinolite asbestos fibers. The mine operated from the 1920s up to the 1990s and was one of the biggest suppliers of vermiculite in the world.

A review of scientific literature examining the mining history, geology, mineralogy, and amphibole asbestos …

A review of scientific literature examining the mining history, geology, mineralogy, and amphibole asbestos health effects of the Rainy Creek igneous complex, Libby, Montana, USA Inhal Toxicol . 2006 Nov;18(12):949-62. doi: 10.1080/08958370600834982.

Vermiculite and Asbestos

 · While vermiculite alone isn''t harmful, it can often contain asbestos. The bulk of vermiculite found in US homes is directly from Libby, Montana. The EPA estimates that 70% of vermiculite sold between 1919 to 1990 originated from there. In the vermiculite mines, there was an asbestos deposit that formed alongside it.