Not to be confused with Cerussite or lead carbonate.
A sample of sericite
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 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.
The name comes from Latin sericus, meaning "silken" in reference to the location from which silk was first utilized, which in turn refers to the silky sheen of rocks with abundant sericite.
Sericite in thin section (fine, high birefringence flakes covering other larger minerals)
Granite in thin section under cross-polarized light in which feldspar crystals exhibit sericite alteration
Staurolite-garnet schist in thin section under cross-polarized light with sericite
^Nesse, William D. (2012). Introduction to mineralogy (2nd ed.). New York: Oxford University Press. ISBN 978-0199827381.
Sericite is the name given to very fine, ragged grains and aggregates of white (colourless) micas, typically made of muscovite, illite, or paragonite....
achieves a preferred orientation. It is primarily composed of quartz, sericite mica, and chlorite. Phyllite has fine-grained mica flakes, whereas slate...
rocks. Phyllic alteration is characterised by the assemblage of quartz + sericite + pyrite, and occurs at high temperatures and moderately acidic (low pH)...
country rock. Plagioclase feldspar within the rock is converted to sericite (sericite is not a mineral; it is a term that is used to describe any fine-grained...
and chlorite-biotite phyllite intercalated with minor amounts of biotite-sericite-quartz schist. Between 7,000 and 7,600 m (23,000 and 24,900 ft), the lower...
for Al in the Y site and a corresponding increase in Si in the Z site. Sericite is the name given to very fine, ragged grains and aggregates of white (colourless)...
+/- sericite +/- silica. Often the host rock is entirely replaced by chlorite, which may appear as a chlorite schist in deformed examples. Sericite zone...
in weathering and hydrothermal environments; it may be a component of sericite. It is common in sediments, soils, and argillaceous sedimentary rocks as...
clay minerals. Chlorite is found in pelites along with quartz, albite, sericite, and garnet, and is also found in associate with actinolite and epidote...
selvages. Quartz-sericite-pyrite alteration, in which these minerals can be deposited both in veins and in a disseminated manner; sericite in particular...
gridiron twinning. Distinguishable from sanidine by a larger 2Vx. Other characteristics Low negative relief; alters to sericite or clay (commonly) References...
is a microscopic mixture of several other minerals, zoisite, epidote, sericite, albite or other sodium-rich feldspar along with possibly scapolite. The...
Rain, snow, wind, frost and heat gradually eroded the mountains. Solid sericite-quartzite schists, from which the remains are composed, were eroded less...
continuous and do not "pinch and swell." Alters to Commonly alters to sericite or clay. Relief Low negative relief Optical sign Biaxial negative Color...
about 1,000 to 2,000 feet thick on Greylock and "consists of muscovite (sericite), chlorite, and quartz schist." It lies above a formation called "Bellows...
typically have an outer epidote – chlorite mineral alteration zone. A quartz – sericite alteration zone typically occurs closer to the center and may overprint...
modern exploration data demonstrate commercial gold presence in quartz-sericite-chlorite and quartz-alunite rocks in close vicinity to the hydrothermal...
Substantial alteration has yielded albite, calcite, epidote, phyllosilicates, sericite and zeolites. Two different ages have been obtained on Antilla rocks, the...
Alteration is nonexistent to very weak at best, and the weak chlorite and sericite are believed to be mainly post-ore effects. Other post-depositional alteration...
results in the formation of abundant secondary minerals such as kaolinite, sericite, serpentine, montmorillonite, and chlorite and a corresponding increase...
body. The Golden Giant Mine produced 446,858 ounces in 1994 from a quartz sericite schist host rock. The David Bell Mines produced 204,251 ounces in 1994...
developed with metasomatic replacement of primary minerals by carbonate, sericite, albite and quartz. Currently 25 deposits have been identified and explored...
rocks, which are about 2 km (6,600 ft) thick, consist of Upper Proterozoic sericite and chlorite slate and schist that contain minor amounts of metavolcanic...
squared for lintels. The greenschist, whose colour comes from chlorite and sericite, are used mainly for roofing in Nord-Cotentin, but also masonry in Cherbourg...
Form of silica Manuels Spherulites of rhyolites Chalcedonic quartz Clarenville Groundmass of rocks Chalcedonic quartz with sericite along glassy cracks...
reactivation of faults and the transformation of psammite schist to chlorite-sericite schist. A third event, preserved in the Limejuice Zone produced high-grade...
narrow zone of weakly metamorphic rocks such as phyllites, greenschists and sericite gneisses.[5] They are appear greenish through chlorite and epidote. The...
Global Information
Granite in thin section under cross-polarized light in which feldspar crystals exhibit sericite alteration
Staurolite-garnet schist in thin section under cross-polarized light with sericite
