red shale

noun

A sedimentary rock that is red in color due to the presence of iron oxide minerals.

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Meanings

nounred shale (countable and uncountable, plural red shales)

plural red shales

  1. countableuncountableA sedimentary rock that is red in color due to the presence of iron oxide minerals.
Cite this entry
APA

red shale. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/red%20shale

MLA

“red shale.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/red%20shale. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “red shale,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/red%20shale.

Source: red shale on Wiktionary, CC BY-SA 4.0.