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OTHER WORDS FROM glauconiteglau·co·nit·ic [glaw-kuh-nit-ik], /ˌglɔ kəˈnɪt ɪk/, adjective
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Example sentences from the Web for glauconite
A greenish mineral called glauconite—a silicate of iron and alumina—is then formed.The Elements of Geology|William Harmon Norton
In a few places a red colour prevails, the iron being mostly oxidized; elsewhere the muds are green owing to abundant glauconite.
Red limestones usually contain haematite; in green limestones there may be glauconite or chlorite.
The sandstones are grey in colour, weathering buff or reddish-brown, tinged more or less green by grains of glauconite.
They are made of a mixture of sand and clay coloured dark green by a mineral called glauconite.