sericite
[ser-uh-sahyt]
- a fine-grained variety of muscovite produced by the alteration of feldspar.
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Origin of sericite
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for sericite
Historical Examples
There is some sericite present, also magnetite, resulting from the decomposition of the biotite.
The Long Labrador TrailDillon Wallace
There is also a small amount of hematite, pyroxene and sericite.
The Long Labrador TrailDillon Wallace
A dark compact rock, in which calcite and sericite predominate.
The Long Labrador TrailDillon Wallace
In igneous rock the ore-bearing solutions may have altered the wall rock to a dense mixture of quartz, sericite, and chlorite.
The Economic Aspect of GeologyC. K. Leith
Alunite is a potassium-aluminum sulphate, which differs from sericite in that sulphur takes the place of silicon.
The Economic Aspect of GeologyC. K. Leith