Definition of glauconite
: a mineral consisting of a dull green earthy iron potassium silicate occurring in greensand
glauconiticplay \ˌglȯ-kə-ˈni-tik\ adjective
Recent Examples of glauconite from the Web
The greenish material is glauconite … an authigenic mineral that typically forms in marine shelf settings, thought to reflect very slow sedimentation rates.
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Origin and Etymology of glauconite
German Glaukonit, irregular from Greek glaukos
First Known Use: 1836
Learn More about glauconite
Britannica.com: Encyclopedia article about glauconite
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