sericite
/ser-uh-sahyt/US // ˈsɛr əˌsaɪt //
绢云母,丝光石,铁锈石,丝光岩
Definitions
n.名词 noun
- 1
Mineralogy.
- : a fine-grained variety of muscovite produced by the alteration of feldspar.
Examples
Where sericite is dominant, the alteration is called sericitic alteration.
In igneous rock the ore-bearing solutions may have altered the wall rock to a dense mixture of quartz, sericite, and chlorite.
Alunite is a potassium-aluminum sulphate, which differs from sericite in that sulphur takes the place of silicon.
There is some sericite present, also magnetite, resulting from the decomposition of the biotite.
There is also a small amount of hematite, pyroxene and sericite.
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