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Sericite

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Formula:
KAl2(AlSi3O10)(OH)2
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Name:
Named in 1852 by Karl/Carl List from the Greek seirος meaning "silken".
A variety of Muscovite

A term for a fine-grained white, pale green to oily greenish mica, mainly Muscovite (rarely Paragonite).


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Chemical Properties of SericiteHide

Formula:
KAl2(AlSi3O10)(OH)2

Age distributionHide

Recorded ages:
Neoproterozoic to Quaternary : 670 Ma to 1.3 ± 0.1 Ma - based on 27 recorded ages.

Synonyms of SericiteHide

Other Language Names for SericiteHide

Varieties of SericiteHide

Chromian SericiteA chromium-bearing variety of sericite. See also fuchsite.

Common AssociatesHide

Associated Minerals Based on Photo Data:
Quartz30 photos of Sericite associated with Quartz on mindat.org.
Pyrite21 photos of Sericite associated with Pyrite on mindat.org.
Epidote10 photos of Sericite associated with Epidote on mindat.org.
Fluorite9 photos of Sericite associated with Fluorite on mindat.org.
Calcite8 photos of Sericite associated with Calcite on mindat.org.
Schorl7 photos of Sericite associated with Schorl on mindat.org.
Topaz6 photos of Sericite associated with Topaz on mindat.org.
Weberite6 photos of Sericite associated with Weberite on mindat.org.
Cryolite6 photos of Sericite associated with Cryolite on mindat.org.
Magnetite6 photos of Sericite associated with Magnetite on mindat.org.

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Sericite in petrologyHide

References for SericiteHide

Reference List:
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Zhang, M., Wang, L., Hirai, S., Redfern, S.A.T., and Salje, E.K.H. (2005) Dehydroxylation and CO2 incorporation in annealed mica (sericite): An infrared spectroscopic study. American Mineralogist: 90: 173-180.

Internet Links for SericiteHide

Localities for SericiteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListShow