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A talc-like mineral (Na2O-K2O).3Al2O3.6SiO2.2H2O.
It has a relatively flat, platey grain structure.
URLs |
http://en.wikipedia.org/wiki/Sericite
Sericite at Wikipedia |
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URLs |
http://www.olympusmicro.com/galleries/polarizedlight/pages/sericitesmall.html
Microscopic image at olympusmicro.com |
Materials |
Seriphyl
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