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glauconite

[glaw-kuh-nahyt] /ˈglɔ kəˌnaɪt/
noun
1.
a greenish micaceous mineral consisting essentially of a hydrous silicate of potassium, aluminum, and iron and occurring in greensand, clays, etc.
Origin of glauconite
1830-1840
1830-40; < Greek glaukón, neuter of glaukós (see glauco-) + -ite1
Related forms
glauconitic
[glaw-kuh-nit-ik] /ˌglɔ kəˈnɪt ɪk/ (Show IPA),
adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for glauconite

glauconite

/ˈɡlɔːkəˌnaɪt/
noun
1.
a green mineral consisting of the hydrated silicate of iron, potassium, aluminium, and magnesium: found in greensand and other similar rocks. Formula: (K,Na,Ca)0.5-1(Fe,Al,Mg)2(Si,Al)4O10(OH)2.nH2O
Derived Forms
glauconitic (ˌɡlɔːkəˈnɪtɪk) adjective
Word Origin
C19: from Greek glaukon, neuter of glaukos bluish-green + -ite1; see glaucous
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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