GLAUCONITE Meaning of GLAUCONITE in English [ 'glɔ:kənʌɪt ]■ noun a greenish clay mineral found chiefly in marine sands.OriginC19: from Ger. Glaukonit , from Gk glaukon (neut. of glaukos 'bluish-green') + -ite 1 . Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004