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

Sericite is the name given to very fine, ragged grains and aggregates of white (colourless) micas, typically made of muscovite, illite, or paragonite. [1] Sericite is produced by the alteration of orthoclase or plagioclase feldspars in areas that have been subjected to hydrothermal alteration (also see Sericitic alteration ) typically ...

Sericite is a common alteration mineral of orthoclase or plagioclase feldspars in areas that have been subjected to hydrothermal alteration typically associated with copper, tin, or other hydrothermal ore deposits. Sericite also occurs as the fine mica that gives the sheen to phyllite and schistose metamorphic rocks.

Apr 23, 2023 · Sericite is a type of mineral that belongs to the mica group. It is a fine-grained, muscovite mica with a silky luster and is typically white, gray, or pale yellow in color. Sericite is found in a wide range of rock types, including metamorphic, igneous, and sedimentary rocks.

Sparkly, pearlescent, mint-green muscovite (variety sericite) plates solidly comprise this large sculptural crust. Two, hard to see, water-clear quartz points are very attractively set into the piece.

varieties of pure sericite from Amelia, Virginia, are given by Glass (1935). As the analyses of two pairs of varieties are very close, their results are averaged:

It has strong sericite-silica alteration with local areas of intense brecciation. Gold is also found within the Foot Wall and Hanging Wall characterised by intense potassic alteration around small shear zones.

A legacy of logging ‘sericita verde’ or ‘green sericite’, as proxy for high grade zones; while true that there is often a vector assemblage of sericita verde, it is revealed by hyperspectral to often be other minerals besides just white mica and chlorite

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Two types of textures/structures are observed: i) grey sericite in the halos of pyriterich D-veins, with local occurrence of K-Fe-Mgdepleted illite close to pyrite ( Figure 3 and 4); ii)...