Cornish diamond

noun

Quartz.

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Meanings

nounCornish diamond (countable and uncountable, plural Cornish diamonds)

plural Cornish diamonds

  1. countableuncountableQuartz.
Cite this entry
APA

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

MLA

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

Chicago

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

Source: Cornish diamond on Wiktionary, CC BY-SA 4.0.