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greenschist

American

[green-shist] / ˈgrinˌʃɪst /

noun

Petrology.

schist colored green by an abundance of chlorite, epidote, or actinolite.

greenschist Scientific

/ grēn′shĭst′ /

A green, schistose metamorphic rock that gets its color from the presence of chlorite, epidote, or actinolite. Greenschist forms under conditions of low temperature and low pressure.

Etymology

Origin of greenschist

green + schist

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The lowest pressure conditions produce hornfels facies, while higher pressure creates greenschist, amphibolite, or granulite facies.

From Textbooks • Jan. 1, 2017

The first of the Barrovian sequence has a mineral group that is commonly found in the metamorphic greenschist facies.

From Textbooks • Jan. 1, 2017

The rock that forms in this way is known as greenstone if it isn’t foliated, or greenschist if it is.

From Textbooks • Jan. 1, 2015

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023