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greenschist

American  
[green-shist] / ˈgrinˌʃɪst /

noun

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


greenschist Scientific  
/ grēnshĭst′ /
  1. 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

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See Examples For:

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

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