is talc an alteration mineral

ANTHOPHYLLITE Magnesium Iron Silicate Hydroxide

Anthophyllite is a common component of some metamorphic and metasomatic rocks Its name comes from the Latin word for clove and is an allusion to its typical and distinct clove brown color

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Glauconite mineral

Glauconite Glauconite greenish ferric iron silicate mineral with micaceous structure [ K Na Fe3 Al Mg 2 Si Al 4O10 ΟH 2] characteristically formed on submarine elevations ranging in depth from 30 to 1 000 metres 100 to 3 300 feet below sea level

Talc Mineral Data

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Smectite Group Smectite Group mineral information and data

Monoclinic clay like minerals Positive identification of minerals in the smectite group may need data from dehydration experiments thermogravimetric analysis TGA or differential thermo analysis DTA and X ray powder patterns before and after treatment by heating and with organic liquids

Talc — Wikipédia
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Le talc est une espèce minérale composée de silicate de magnésium doublement hydroxylé de formule Mg 3 Si 4 O 10 2 pouvant contenir des traces de nickel de fer d aluminium de calcium de sodium et d autres silicates magnésiens comme l amiante

Mineraloid

A mineraloid is a mineral like substance that does not demonstrate possess chemical compositions that vary beyond the generally accepted ranges for specific minerals

Quick Mineral Reference Formula Group Class Subclass

Quick Mineral Reference for Formula Group Class Subclass Type Locality Obsolete Names from John Betts Fine Minerals mineral dealer in New York City

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