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glauconite

Pronunciation: /ˈglɔːkənʌɪt/
Definition of glauconite

noun

[mass noun]
  • a greenish clay mineral of the illite group, found chiefly in marine sands.

Origin:

mid 19th century: from German Glaukonit, from Greek glaukon (neuter of glaukos 'bluish-green') + -ite1

glauconite in other Oxford dictionaries

Definition of glauconite in the US English dictionary

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