vermiculite mineral data

Vermiculite Mineral Data

Vermiculite Crystallography Axial Ratios a b c 0 5698 1 1 6218 Cell Dimensions a 5 26 b 9 23 c 14 97 Z 2 beta 96 82° V 721 65 Den Calc 2 32


liquids As an inorganic mineral it does not present any fire hazard INSULATION Exfoliated Vermiculite is well established as an excellent thermal insulating material capable of withstanding temperatures in excess of 1000°C The free flowing properties of loose fill Vermiculite make installation very simple in

Vermiculite Dispersions A Unique Material for Fluid

Vermiculite is a hydrated magnesium aluminum sheet silicate mineral closely related to mica and has all of the thermal and chemical resistance mica is known for When subjected to heat vermiculite expands and forms particles known for being

Vermiculite Wikipedia

Vermiculite Crystallography Axial Ratios a b c 0 5698 1 1 6218 Cell Dimensions a 5 26 b 9 23 c 14 97 Z 2 beta 96 82° V 721 65 Den Calc 2 32

Vermiculite Mineral Specimen For Sale

Vermiculite Phyllosilicate Monoclinic Not a Mica group member But is micaceous A member of the Montmorillonite Vrmiculate group with 2 1 layering meaning there are two T tetrahedral layers with an M octahedral layer in between There is no I interlayer and the 2 1 layers are instead held together by weak Van der Waals bonds Requires Biotite Chlorite Hornbelnd and Serpentines

Western Mineral Products Vermiculite Processing

Western Mineral Products Vermiculite Processing Operations in Northeast Minneapolis Vermiculite ore containing hazardous Libby asbestos was processed in Northeast Minneapolis from 1938 1989 This page contains information about the vermiculite ways people were exposed potential health impacts and publications and resources

Vermiculite Mineral information data and localities

Forms as an alteration product of biotite or phlogopite by weathering or hydrothermal action Vermiculite is mined as a natural insulation material The best exfoliation properties were observed not for pure vermiculite but for intergrowths of vermiculite and other layer silicates e g hydrobiotite Naturally expanded vermiculite can occur in volcanic rocks


This product is a non combustible fire resistant vermiculite board Micalite Fire Resistant Boards are easily cut to shape They have excellent thermal insulation properties and minimal shrinkage at high temperatures Micalite Fire Resistant Boards are the ideal product to use in the construction of

World Mining Data

Vermiculite Zircon Mineral Fuels Steam Coal incl Anthracite and Sub Bituminous Coal Coking Coal Lignite Natural Gas Crude Petroleum Oil Sands Oil Shales Uranium 10 World Mining Data 2019 2 Definitions Mineral raw materials are mineral

Vermiculite an overview ScienceDirect Topics

Vermiculite is found in fine rare and somewhat larger sheets and in other clay minerals as particles

Gardening With Vermiculite Vermiculite Uses And Information

Vermiculite although less aerating than perlite is the amendment of choice for water loving plants Here are other uses for vermiculite Add vermiculite to soil for conditioning and lightening either alone or in conjunction with peat or compost This will accelerate the growth and promote anchorage for tender young root systems

Asbestos Vermiculite EH Minnesota Department of Health

Vermiculite Insulation Asbestos Vermiculite is a naturally occurring mineral compound that expands when heated A member of the phyllosilicate group of minerals it resembles mica in appearance In its pure form vermiculite is clean odorless nontoxic and sterile

Absorbent Vermiculite Technical Data Sheet Sinclair Pro

Vermiculite as a liquid absorber is a light non combustible mineral which although insoluble in water oils and organic solvents generally will absorb many times its own weight of various liquids and yet remain free flowing Source The source of the mineral for the manufacture of Vermiculite is a naturally occurring soft micaceous ore

Vermiculite Mineral information data and localities

Vermiculite mineral data information about Vermiculite its properties and worldwide locations

Vermiculite for Grass Growing Home Guides SF Gate

Vermiculite for Grass Growing Vermiculite is an organic soil amendment made from heated chips of the mineral mica which can improve the texture of many soil types by increasing aeration and

Mineralienatlas Lexikon Vermiculite

Mineral Data Mineralienatlas Lexikon Vermiculite Handbook of Mineralogy Anthony et al 2 1995 846 American Journal of Science and Arts 7 1824 55

VERMICULITE Indian Minerals Yearbook 2013

Besides production of vermiculite was reported as associated mineral by five mines in 2012 13 as against two mines in previous year One producer from Tamil Nadu and five from Andhra Pradesh reported 98 output in 2012 13 About 48 of the total production was reported as an associated mineral by an apatite

Industrial Minerals

Vermiculite rising Thursday 28 June 2018 New supply from Uganda and Turkey pushed up global vermiculite production in 2017 Meanwhile prices have increased out of the United States because customers are demanding higher grades A rock and a hard place Friday 08 September 2017

Perlite Minerals Education Coalition

Flakes of raw vermiculite concentrate are micaceous in appearance and contain interlayer water in their structure When the flakes are heated rapidly at a temperature above 870° C the water flashes into steam and the flakes expand into accordion like particles This process is called exfoliation or expansion and the resulting lightweight material is chemically inert fire

Vermiculite mineral information and data

Vermiculite Phyllosilicate Monoclinic Not a Mica group member But is micaceous A member of the Montmorillonite Vrmiculate group with 2 1 layer

Vermiculite mineral information and data

Vermiculite Phyllosilicate Monoclinic Not a Mica group member But is micaceous A member of the Montmorillonite Vrmiculate group with 2 1 layer

Vermiculite Mineral Flotation ArrMaz

Vermiculite Mineral Flotation The hydrous phyllosilicate mineral vermiculite is geologically formed by weathering or hydrothermal alteration of biotite or phlogopite deposits Raw vermiculite flakes have a micaceous appearance with interlayer water inside their structure

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 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

Vermiculite an overview ScienceDirect Topics

Vermiculite Verm is a generally trioctahedral 2 1 clay mineral with hydrated cations occupying the interlayer space However the negative layer charge of Verm arising mostly from substitution of Al 3 for Si 4 in tetrahedral sites is larger than that of smectite Brigatti et al 2013 Haley et al 1982 observed two sharp Raman bands at 3739 cm − 1 and 3240 cm − 1 and two broad

Mandoval Passive Fire Protection Products Vermiculite

Mandoval Vermiculite is the only vermiculite company in South Africa that complies with International Code ISO 9001 2008 in manufacturing Like most mined products there always is a certain amount of grit contamination The Mandoval process of exfoliation ensures the majority of this grit is removed

Vermiculite RRUFF Database Raman X ray Infrared and

REFERENCES for Vermiculite American Mineralogist Crystal Structure Database Record view record Anthony J W Bideaux R A Bladh K W and Nichols M C 1990 Handbook of Mineralogy Mineral Data Publishing Tucson Arizona USA by permission of the Mineralogical Society of America

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

Vermiculite Ausperl Material and Safety data sheet

Apr 16 2014· Vermiculite is the mineralogical name given to hydrated laminar mangesium aluminum iron silicates which resemble mica in appearance When subjected to heat crude vermiculite has the unusual property of exfoliating or expanded into worm like particles Vermiculite is considered a nuisance dust also called Particulates Not Otherwise

Vermiculite mineral Britannica

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


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