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 …
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 …
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 …
(PDF) Characterization of vermiculite by XRD and
This is due to the presence of vermiculite which is a clay mineral that forms from the alteration of mica, pyroxene, chlorite, and other minerals (Brown 1982; Campos et al. 2009), which improved ...
Vermiculite in 2017 (PDF) | U.S. Geological Survey
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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.
Vermiculite
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 approximately 100,000 tons of vermiculite concentrate; actual data have been rounded to one significant digit to avoid disclosing company proprietary data.
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 …
Hydrobiotite Mineral Data
Hydrobiotite [K(Mg,Fe)3(Al,Fe)Si3O10(OH,F)2]•[(Mg,Fe++,Al)3(Si,Al)4O10(OH)2•4(H2O)] Dana No: 71.02.02d.01 Strunz No: 09.EC.60 Locality: Notes:
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.
Vermiculite
Vermiculite - MCS 2019 Data Sheet. By National Minerals Information Center March 1, 2019. mcs-2019-vermi.pdf (93.84 KB)
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.
Vermiculite Data Sheet
World Resources: In addition to the producing mines in South Carolina and ia, there are vermiculite occurrences in Colorado, Nevada, North Carolina, Texas, and Wyoming …
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 ...
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.
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 …
Mineral Commodity Summaries 2022
VERMICULITE (Data in thousand metric tons unless otherwise noted) Domestic Production and Use: Two companies with mining and processing facilities in South Carolina and …
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
Vermiculite Boards • Products • Dupré Minerals
Micalite TM Vermiculite Boards provide fire resistance, insulation and thermal stability. Ideal for wood burning stoves, Micalite TM boards are easy to cut and are available in a number of thicknesses and densities.. Micalite TM boards are also available with decorative surfaces including Brick effect, Herringbone and Reeded patterns making them ideal …
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 this website, along with additional details regarding data privacy, ...
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
Vermiculite Mineral Data
Vermiculite Mineral Data. General Vermiculite Information. Chemical Formula: (Mg,Fe++,Al)3 (Al,Si)4O10 (OH)2•4 (H2O) Composition: Molecular Weight = 504.19 gm. Magnesium 8.68 % Mg 14.39 % MgO. Aluminum 23.01 % Al 43.48 % Al 2 O 3. Iron 9.97 …
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 …
Mineral Resource of the Month: Vermiculite
Mineral Resource of the Month: Vermiculite. by U.S. Geological Survey . Tuesday, September 2, 2014. Arnold O. Tanner, a mineral commodity specialist for the U.S. Geological Survey, compiled the following information on vermiculite, which is used in construction and horticulture.. Vermiculite comprises a group of hydrated, laminar …
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 …
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.
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 20 1M i nera lD t Pub sh g, v o . Crystal Data: Monoclinic. Point Group: 2=m: As large crystalline plates, which may have a pseudohexagonal outline; in clay-sized particles.
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 …
Home · Dicalite Management Group
Dicalite Management Group is an international industrial minerals company with a unique multi-mineral platform including perlite, vermiculite, and diatomaceous earth, represented across three brands: Dicalite, Dicaperl, and Specialty Vermiculite. These processed minerals are used in wide variety of applications, and people are often only a ...
Vermiculite Health, Safety and Environmental Aspects
Additional data on particular items may be available from The Vermiculite Association on request. Vermiculite and Health Aspects Associated with Potential Contaminants Vermiculite is a naturally occurring, mica-type mineral that has been used beneficially in ... mica mineral vermiculite" Scientific pamphlet series 1975:11 The Worker ...