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glauconite Line breaks: glau¦con|ite
Pronunciation: /ˈɡlɔːkənʌɪt/

Definition of glauconite in English:


[mass noun]
A greenish clay mineral of the illite group, found chiefly in marine sands.
Example sentences
  • At the base of the Reading Formation are several metres of brown clay-rich sand with glauconite, flint pebbles and oyster shells.
  • In addition, colors that can be produced by using mixtures of the just-mentioned basic pigments, in some cases along with glauconite and charred bone, are also noted and illustrated.
  • Rounded 1 mm grains of glauconite occur in the Pentecost Sandstone.


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

Definition of glauconite in:
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