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.

Apr 23, 2023 · Sericite is a type of mica, specifically a muscovite mica. The chemical formula for sericite is KAl2(AlSi3O10)(OH)2, which means it contains potassium, aluminum, silicon, oxygen, and hydrogen. Sericite is characterized by its thin, platy structure and is usually white, gray, or pale yellow in color.

Named in 1852 by Karl/Carl List from the Greek seirος meaning "silken". A term for a fine-grained white, pale green to oily greenish mica, mainly Muscovite (rarely Paragonite). Neoproterozoic to Quaternary : 670 Ma to 1.3 ± 0.1 Ma - based on 27 recorded ages. A chromium-bearing variety of sericite. See also fuchsite.

Jan 1, 2022 · Gains of K, Na, and Ca are more consistent with sericite and argillic alteration types, which can then be compared to the compositions of primary and secondary K-, Na-, Mg, Ca-, and Al-bearing minerals, including adularia, alunite, illite-sericite-muscovite, smectite, and chlorite.

Sericitic alteration or sericitization is a process of mineral alteration caused by hydrothermal fluids invading permeable country rock.

Feb 7, 2012 · The mineral barite (BaSO 4) can precipitate in a variety of oceanic settings: in the water column, on the sea floor and within marine sediments. The geological setting where barite forms ultimately determines the geochemistry of the precipitated mineral and its usefulness for various applications.

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.

As a secondary mineral, sericite is very common in hydrothermally altered igneous and metamorphic rocks, in sericite schists, and in the selvages of ore bodies, where it occurs with quartz, carbonates, chlorite, sulfides, barite, talc, and, less commonly, with fluorite and tourmaline.

Sep 5, 2023 · Barite (barium sulfate, BaSO4) has a wide range of applications across various industries due to its unique properties, particularly its high density, chemical inertness, and ability to absorb X-rays.

An interdisciplinary study based on lithostratigraphic, biostratigraphic, petrographic and mineralogical analyses has been performed in order to establish the Cenozoic tectono-sedimentary evolution...