vermiculite mining vermiculite

Libby, Montana — The Asbestos Outbreak

Vermiculite mining in Libby began more than 80 years ago when E.N. Alley bought the Rainy Creek claims and launched Zonolite Company. In 1963, the Maryland-based W.R. Grace and Company acquired Alley’s Zonolite business. By this time, vermiculite had been mined for more than 40 years in an area about seven miles outside of Libby.

Vermiculite - an overview | ScienceDirect Topics

A vermiculite mining and milling operation 6 miles north of the town of Libby, Montana is the site of arguably the worst asbestos-related disaster. The vermiculite contained naturally occurring amphibole asbestos, tremolite, which like most asbestos compounds, is particularly toxic to human beings. It also contained richterite and winchite, two ...

Vermiculite - Wikipedia

Vermiculite is a hydrous phyllosilicate mineral.It undergoes significant expansion when heated. Exfoliation occurs when the mineral is heated sufficiently, and the effect is routinely produced in commercial furnaces. Vermiculite is formed by weathering or hydrothermal alteration of biotite or phlogopite. Large commercial vermiculite mines currently exist in Russia, South Africa, China, and …

Vermiculite Building Insulation & Asbestos Hazards ...

Vermiculite History & Properties Vermiculite discovery, mining history, properties, How to recognize vermiculite building insulation that may contain asbestos fibers - Vermiculite history & properties: This article describes the early history of discovery, description & mining of vermiculite and we describe the properties of vermiculite that have formed the basis of its widespread uses in many ...

Division of Geology and Mineral Resources - Vermiculite

Vermiculite is a clay mineral group with the general chemical composition (Mg,Fe,Al) 3 (Al,Si) 4 O 10) (OH) 2 ·4(H 2 O). Often occurring as an alteration product of biotite mica or chlorite in the near-surface zone of weathering, vermiculite is typically found associated with ultramafic rock types such as peridotite and pyroxenite that have been previously altered by intrusions of granite ...

Asbestos Mines - Vermiculite Mining & Asbestos Exposure

Vermiculite Mining. Vermiculite is a member of the phyllosilicate group of minerals and is found in many parts of the world. Vermiculite can contain many other minerals, including asbestos. However, not all vermiculite is contaminated.

What Is Vermiculite? | Sciencing

Apr 24, 2017· Mining is typically done in a way that reduces the environmental impact. Uses Because of its inert chemical nature, compressibility, low density and heat resistance, vermiculite is used in …

Exfoliated Vermiculite - Vermiculite for Swimming Pool ...

The exfoliated Vermiculite for Swimming Pool lining¿¿concrete is also used in the construction industries today and has wide applications, one of them being used as an additive to fireproof wallboard. It is a lightweight aggregate for plaster, proprietary concrete compounds, firestop mortar, and cementations spray fireproofing.

Vermiculite Dangers | Garden Guides

Vermiculite has many uses, from insulation to swimming pools. You're probably familiar with this mica-like mineral as a potting mix additive: it breaks up the soil, providing better aeration, and it retains water and fertilizer. It's also a pH-neutral way to add calcium and magnesium. But some people might ...

Palabora Mining Company Ltd

Palabora vermiculite is a hydrated phlogopite mica which has the remarkable ability to expand to many times its original volume when heated, a property known as exfoliation. Being non-combustible and insoluble in water or organic solvents, vermiculite is safe and easy to handle, making it suitable for a wide range of different applications.

Vermiculite Mineral Flotation | ArrMaz

Lower-grade vermiculite mineral needs can be met with gravity separation whereas higher-grade vermiculite is primarily achieved using flotation. Flotation can be used to recover vermiculite of varying sizes and a two-stage flotation process can produce a range of grades for specific end uses.


The Vermiculite Institute is being organized to provide a voice to those who desire a more proactive resource. It is true the Libby, Montana vermiculite mine contained asbestos; and it is true that many miners and some plant workers who had regular exposure to the mine and to the crude vermiculite from that mine have developed health problems.

Sri Ramamaruti Vermiculite Mines - Wholesale Supplier of ...

sri ramamaruthi vermiculite mines were founded by mr t. meenatchi sundaram, managing director, in the year 1984. srvm concentrates in the mining and processing of raw vermiculite and exfoliated vermiculite. vermiculite finds its applications in construction, steel, refractory, thermal and acoustic, horticulture, agriculture, paint solvent ...

2002 Testing on Vermiculite from Palabora, South Africa

Sampling and analysis of crude vermiculite stocks at the Palabora Europe Ltd store at North Killingholme CONTRACT NO: 874D/1 PROJECT NO: 163 1. INTRODUCTION . Palabora Europe Limited are the European distributors of vermiculite produced by the Palabora Mining Company from open cast mines at Phalaborwa, Transvaal, South Africa.

Vermiculite: Mineral information, data and localities.

Interstratified vermiculite-mica in the gneiss-metapelite-serpentinite rocks at Hafafit area, Southern Eastern Desert, Egypt: From metasomatism to weathering. Journal of African Earth Sciences, Volume 58, Issue 2, p. 305-320.

namekara – Namekara Vermiculite Mine

NMCL is the owner of the Namekara Vermiculite Mine and the Busumbu Phosphate Project located in south eastern Uganda. The Namekara Vermiculite Mine is thought to be the largest and one of the highest grade Vermiculite mines in the world. The mine produces 30 000tpa of high grade Vermiculite.

Home · Dicalite Management Group

One of only two brands mining in the United States, Specialty Vermiculite is the preeminent producer of Vermiculite. Our product is mined in South Carolina and exfoliated across five state-of …

How vermiculite is made - material, history, used ...

The largest vermiculite mining operation in the world is located in the Phalabowra (also sometimes spelled Palabora) district of the Republic of South Africa. Other countries producing significant amounts of vermiculite include the United States, China, Russia, Brazil, Japan, Zimbabwe, and Australia.

What is Vermiculite? - The Vermiculite Association

Vermiculite is mined using open cast mining techniques where the ore is separated from other minerals and then screened or classified into several basic particle sizes. Every care is taken in mining operations to minimize the impact on the environment and to restore land to its natural condition when mining ends.

Asbestos And Mining - Asbestos Network

Mining and milling activities to remove asbestos from underground rock exposes workers to dangerous levels of the carcinogen. Besides the workers, people who live near asbestos mines also have an increased risk of exposure. Tremolite Asbestos In Vermiculite Mines

Vermiculite - Dupre Minerals

Vermiculite Grades & Vermiculite Boards. Inert properties allowing usage across a wide range of global sectors . Vermiculite Boards. Ideal for wood burning stoves, Micalite™ boards are available in pre-cut shapes with decorative surfaces including Brick effect, Herringbone and Reeded patterns.

Vermiculite - Skamol

Vermiculite is a natural mineral that is extracted from mines all over the world. The form used for insulation is derived from rocks containing large crystals of specific minerals. As these rocks are exposed to the weather, they start to decompose, allowing water to …

Welcome to Libby, Montana, the town that was poisoned | US ...

Mar 07, 2009· When WR Grace bought the mine in 1963 it was producing 80% of the world's vermiculite and Libby was proud of it. ... In a town like Libby it was accepted that logging and mining were dangerous work.

Home - The Vermiculite Association

Vermiculite dispersions are used in heat and fire resistant coatings, as well as barrier and binder applications TVA’s 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.

Schundler Company Vermiculite Technical Information ...

Dec 07, 2014· These testing reports are scrutinized to make sure the vermiculite is safe, and MSDS sheets are maintained to comply with all OSHA and Community-Right-to-Know laws. Historially, the Schundler Company was one of the largest and most consistent customers of Palabora Mining Company in North America.

Vermiculite - Palabora Mining Company Ltd

Vermiculite Vermiculite is a member of the phyllosilicate group of minerals, resembling mica in appearance. Palabora vermiculite is essentially a hydrated phlogopite mica, which has the remarkable ability to expand to many times its original volume when heated, a property known as exfoliation.


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 products for insulation in …

Vermiculite | Definition of Vermiculite by Merriam-Webster

Aug 09, 2018· Vermiculite definition is - any of various micaceous minerals that are hydrous silicates resulting usually from expansion of the granules of mica at high temperatures to give a lightweight highly water-absorbent material.

"Vermiculite Mountain Mine" in Lincoln, MT, Vermiculite ...

"Vermiculite Mountain Mine" is a producer deposit site discovered in 1915 in the Rocky Mountain System of Montana, The United States. It is a deposit, located in the Rainy Creek District mining district and is not considered to be of world-class significance. 1 Vermiculite and feldspar deposits are documented at "Vermiculite Mountain Mine."

Vermiculite - definition of vermiculite by The Free Dictionary

Vermiculite mining, however, also exposed the town to tremolite, a type of asbestos found in the vermiculite ore. Libby, Montana. Sow seeds indoors in a cell tray, placing two or three seeds in each and covering with vermiculite. Good enough to eat.


182 VERMICULITE (Data in thousand metric tons unless otherwise noted) Domestic Production and Use: Two companies with mining and processing facilities in South Carolina and ia produced vermiculite concentrate and reported production of approximately 100,000 tons.

Vermiculite - USGS

VERMICULITE (Data in thousand metric tons unless otherwise noted) Domestic Production and Use: Two companies with mining and processing facilities in South Carolina and ia produced vermiculite concentrate. Most of the vermiculite concentrate was shipped to …

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. PMC is South Africa's largest producer of refined copper.

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