A medium-grained metamorphic rock generally derived from fine-grained sedimentary rock like shale, showing pronounced schistosity: mineral grains visible with a hand lens, oriented so the rock splits into thin flakes or plates. That texture reflects a high content of platy minerals such as mica, talc, chlorite or graphite, and the rock typically forms during the regional metamorphism that accompanies mountain building. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/
Facts
Formation ClassMetamorphic (regional metamorphism accompanying mountain building, usually medium grade) 1 Chemical FormulaSchist has no fixed chemical formula. It is classified by its texture (schistosity) rather than by composition, and its mineral makeup varies widely depending on the parent rock and metamorphic grade. 1 Classification
Classification Connections
Associated With
Corundum's own page names mica schist as a host rock in metamorphic terranes.
Source Corundum (Wikipedia)
Mica-rich schist (mica schist) is one of the most common schist varieties.
Source Schist (Wikipedia)
Classified as a talc-schist, a metamorphic-rock category of schist.
Source Soapstone (Wikipedia)
Talc schist is a named schist variety defined by its talc content.
Source Schist (Wikipedia)
Caused By
Typically forms during regional metamorphism accompanying mountain building.
Source Schist (Wikipedia)
Classified As
In Discipline
Source Schist (Wikipedia)
Sources
1. Schist (Wikipedia)
Wikimedia FoundationLead section
Schist typically forms during regional metamorphism accompanying the process of mountain building (orogeny) and usually reflects a medium grade of metamorphism.
Definition section
Schists are defined by their texture without reference to their composition, and while most are a result of medium-grade metamorphism, they can vary greatly in mineral makeup.
Lead section
Schist ( SHIST) is a medium-grained metamorphic rock generally derived from fine-grained sedimentary rock, like shale.
Associated With: Mica, Body, protolith section
Schist metamorphosed from mudstone is particularly common and is often very rich in mica (a mica schist).
Associated With: Talc, Body, protolith section
Talc schist also forms from metamorphosis of talc-bearing carbonate rocks formed by hydrothermal alteration.
View the Source Wikidata: Schist
Wikidata Q15315
Soapstone (Wikipedia)
Wikimedia FoundationAssociated With: Soapstone, Lead section, opening sentenceQuote, Associated With: Soapstone, Lead section, opening sentence
Soapstone (also known as steatite or soaprock) is a talc-schist, which is a type of metamorphic rock.
Corundum (Wikipedia)
Wikimedia FoundationAssociated With: Corundum, Occurrence sectionQuote, Associated With: Corundum, Occurrence section
Corundum occurs as a mineral in mica schist, gneiss, and some marbles in metamorphic terranes.
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