vermiculite mineral data

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2018 Minerals Yearbook

Global vermiculite production increased by about 10% in 2018 to an estimated 421,000 t (table 4), owing to incremental increases in production from several countries and an …

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Vermiculite historical statistics data table (.XLSX format) 2022 update for USGS Data Series 140 - Historical Statistics for Mineral and Material Commodities in the United States. The data series contains information on approximately 90 mineral commodities, including production, imports, exports, and stocks; reported and apparent …

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Sudoite Mineral Data

General Sudoite Information : Chemical Formula: Mg2(Al,Fe+++)3Si3AlO10(OH)8 : Composition: Molecular Weight = 546.77 gm Magnesium 8.45 % Mg 14.01 % MgO: Aluminum 19.25 % Al 36.36 % Al 2 O 3: Iron 3.06 % Fe 1.31 % FeO / 2.92 % Fe 2 O 3: Silicon 15.41 % Si 32.97 % SiO 2: Hydrogen 1.46 % H 13.01 % H 2 O: Oxygen 52.38 % …

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Vermiculite Data Sheet

Learn about the production, use, import, and export of vermiculite, a micaceous mineral that expands when heated. Find out the sources, grades, prices, and applications of …

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What Is Vermiculite and How Is It Used?

Vermiculite is a mica-like mineral that serves as a soil amendment. It is mined out of the ground, exfoliated, and treated with extreme heat and pressure. The resulting worm-like, curly, and sterile product can expand. The silvery-gray and flaky material is so light that the small particles move when you blow on them.

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Gedrite Mineral Data

Gedrite Crystallography: Axial Ratios: a:b:c =1.0393:1:0.2964 : Cell Dimensions: a = 18.594, b = 17.89, c = 5.304, Z = 4; V = 1,764.36 Den(Calc)= 2.95

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Vermiculite | Expanded Clay, Soil Amendment, Horticulture

vermiculite, clay mineral similar to montmorillonite in structure and, in some cases, composition.Vermiculite is typically formed by the alteration of biotite, and it occurs both as large pseudomorphs replacing biotite and as small particles in soils and ancient sediments.It is also formed at the interface between acidic intrusive rocks and basic rocks such as …

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USGS High Resolution Spectral Library | U.S. Geological Survey

The USGS Spectral Library contains reflectance spectra, including samples of minerals, rocks, soils, physically constructed as well as mathematically computed mixtures, plants, vegetation communities, microorganisms, and man-made materials. The samples and spectra collected were assembled for the purpose of using spectral features for the …

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Mineral Commodity Summaries 2023

This data release contains the U.S. salient statistics and world production data extracted from the VERMICULITE data sheet of the USGS Mineral Commodity Summaries 2023. Access & Use Information Public: This dataset is intended for public access and use.

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Mineral Commodity Summaries 2024

Data for U.S. exports and imports of vermiculite were combined with data for other mineral products by the U.S. Census Bureau. U.S. imports were an estimated 40,000 tons in …

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Mineral resource of the month: vermiculite | U.S. Geological …

Vermiculite comprises a group of hydrated, laminar magnesium-aluminum-iron silicate minerals resembling mica. They are secondary minerals, typically altered biotite, iron-rich phlogopite or other micas or clay-like minerals that are themselves sometimes alteration products of amphibole, chlorite, olivine and pyroxene. Vermiculite …

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Products

PRODUCTS Mandoval is the leader in the supply of raw and ex-foliated vermiculite in South Africa for over 75 years. Vermiculite is a member of the Phyllosilicate group of minerals, resembling mica in appearance. It is very versatile and has a wide range of uses from animal feed to fire protection to acoustic insulation. PRODUCTS

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Loose Vermiculite • Products • Dupré Minerals

Dupré Minerals Vermiculite - For further information on both our Standard and Premium Grade loose vermiculite products, please contact us. ... If you would like to know more about how we use the data we collect on …

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Mineral Commodity Summaries 2022

This data release contains the U.S. salient statistics and world production data extracted from the VERMICULITE data sheet of the USGS Mineral Commodity …

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Vermiculite Mineral Data

Physical Properties of Vermiculite : Cleavage: {001} Perfect : Color: Colorless, Green, Gray white, Yellow brown. Density: 2.3 - 2.7, Average = 2.5

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Vermiculite Statistics and Information | U.S. Geological …

Statistics and information on the worldwide supply of, demand for, and flow of the mineral commodity vermiculite. Flakes of raw vermiculite concentrate are micaceous in …

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Mineral Commodity Summaries 2022

This data release contains the U.S. salient statistics and world production data extracted from the VERMICULITE data sheet of the USGS Mineral Commodity Summaries 2022. Contacts. Point of Contact : Robert M Callaghan, U.S. Geological Survey, National Minerals Information Center ...

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Spectroscopy of Expanded Vermiculite Products and …

This dataset contains descriptions and analytical data (i.e., electron microprobe, X-ray diffraction, spectral reflectance, and scanning electron microprobe analyses) for unexpanded and expanded vermiculite samples. These data are provided for 52 samples of vermiculite attic insulation, horticultural products, aggregate, and …

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Smectite Group: Mineral information, data and localities.

Smectite and vermiculite minerals are often referred to as "swelling" or "expandable" clay minerals. Smectite is commonly a primary constituent of bentonite (see bentonite for respective genesis information) and pelitic sediments (e.g., shales) and occurs in soils.

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Mineral resource of the month: vermiculite

Vermiculite comprises a group of hydrated, laminar magnesium-aluminum-iron silicate minerals resembling mica. They are secondary minerals, typically altered biotite, iron-rich phlogopite or other micas or clay-like minerals that are themselves sometimes alteration products of amphibole, chlorite, olivine and pyroxene. Vermiculite deposits are …

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Mineral Commodity Summaries 2024

VERMICULITE (Data in thousand metric tons unless otherwise specified) ... Data for U.S. exports and imports of vermiculite were combined with data for other . mineral products by the U.S. Census Bureau. U.S. imports were an estimated 40,000 tons in 2023, compared with 24,000 tons in 2022. In 2023, most imports came from Brazil and South Africa.

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Vermiculite | NIOSH | CDC

Vermiculite is a mineral that rapidly expands when heated. Expanded vermiculite is used in construction and consumer materials. Vermiculite mined near Libby, Montana, which accounted for more than half the worldwide production of vermiculite from 1925 to 1990, was contaminated with asbestos and asbestos-like fibers.

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How vermiculite is made

The term vermiculite applies to a group of minerals characterized by their ability to expand into long, worm-like strands when heated. This expansion process is called exfoliation. The name vermiculite is derived from a combination of the Latin word vermiculare meaning "to breed worms," and the English suffix-ite, meaning mineral or rock.

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Vermiculite in 2017 (PDF) | U.S. Geological Survey

An official website of the United States government. Here's how you know

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Vermiculite

The data series contains information on approximately 90 mineral commodities, including production, imports, exports, and stocks; reported and apparent …

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Vermiculite : Properties, Uses, Deposits » Geology Science

Vermiculite is a naturally occurring mineral that has gained significant attention due to its unique properties and various applications. It is a hydrated, laminar, and micaceous mineral belonging to the phyllosilicate group. Vermiculite has a layered structure, similar to mica, and it can expand or exfoliate when heated, making it a …

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Vermiculita: Propriedades, Usos, Depósitos »Ciência Geológica

A vermiculita é um mineral natural que tem recebido atenção significativa devido às suas propriedades únicas e diversas aplicações. É um mineral hidratado, laminar e micáceo pertencente ao grupo dos filossilicatos. A vermiculita tem uma estrutura em camadas, semelhante à mica, e pode expandir ou esfoliar quando aquecida, …

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Vermiculite

Vermiculite - MCS 2019 Data Sheet. By National Minerals Information Center March 1, 2019. mcs-2019-vermi.pdf (93.84 KB)

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Properties

Vermiculite is a hydrated magnesium aluminum silicate mineral. The formation of vermiculite has been variously ascribed to natural weathering, hydrothermal action, percolating ground waters or combinations of all these three actions. ... The basic structure of the mineral is identical to the micas and to talc: a 2:1 silicate sheet composed of ...

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Home Page • Dupré Minerals

Dupré Minerals manufacture an extensive range of high quality products, servicing the Vermiculite, Precision Casting, Friction and Refractory industries. Combining over 60 years experience with the latest production technology to formulate and develop innovative products to meet precise specifications.

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Vermiculite: Mineral information, data and localities.

Vermiculite. Colour: Brown, bronze-yellow. Hardness: 1½ - 2. Crystal System: Monoclinic. Member of: Smectite Group. Name: From Latin "vermiculor", breed of worms, in allusion …

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Mineral Production: Andhra Pradesh: Non Metallic Minerals: Vermiculite

Mineral Production: Andhra Pradesh: Non Metallic Minerals: Vermiculite data was reported at 6.000 INR th in Feb 2024. This records a decrease from the previous number of 215.000 INR th for Jan 2024. Mineral Production: Andhra Pradesh: Non Metallic Minerals: Vermiculite data is updated monthly, averaging 191.000 INR th (Median) from Dec …

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Mineral Commodity Summaries 2022

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Vermiculite: Mineral information, data and localities.

Properties of Vermiculite Hide. Mineral: Click here for more information on the mineral species Vermiculite. Formula: Mg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O Formula …

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2018 Minerals Yearbook

2018 Minerals Yearbook U.S. Department of the Interior U.S. Geological Survey VERMICULITE [ADVANCE RELEASE] November 2021. Vermiculite—2018 [ADVANce releASe ] 82.1 ... unrounded data. Vermiculite is a hydrated magnesium-aluminum-iron silicate. Raw vermiculite is similar in appearance to mica, contains water

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Vermiculite (Mg Fe3+ Al) (Si Al) O (OH) 4H O 3 4 10 2

Vermiculite (Mg;Fe3+;Al)3(Si;Al)4O10(OH)2² 4H2O °c 2001 M i neral D t Publi sh g, v o 1.2 Crystal Data: Monoclinic. Point Group: 2=m: As large crystalline plates, which may have a pseudohexagonal outline; in clay-sized particles.

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