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

From Textbooks • Jan. 1, 2017

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