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Related to glauconite: Glaucophane, glauconitic sandstone


A greenish mineral of the mica group, a hydrous silicate of potassium, iron, aluminum, or magnesium, (K,Na)(Al,Fe,Mg)2(Al,Si)4O10(OH)2, found in greensand and used as a fertilizer and water softener.

[German Glaukonit : Greek glaukon, neuter of glaukos, gray + -ite.]

glau′co·nit′ic (-nĭt′ĭk) adj.


(Minerals) 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
[C19: from Greek glaukon, neuter of glaukos bluish-green + -ite1; see glaucous]
glauconitic adj


(ˈglɔ kəˌnaɪt)

a greenish micaceous mineral, mainly a hydrous silicate of potassium, aluminum, and iron, occurring in greensand and clays.
[1830–40; < Greek glaukón, neuter of glaukós (see glaucous) + -ite1]
glau`co•nit′ic (-kəˈnɪt ɪk) adj.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.glauconite - a green mineral consisting of hydrated silicate of potassium or iron or magnesium or aluminum; found in greensand
mineral - solid homogeneous inorganic substances occurring in nature having a definite chemical composition
References in periodicals archive ?
The border is highlighted by an accumulation of domatic laminas of macrofauna shells, classical quartz and glauconite.
The Leetse Formation varies in thickness and its sandy lower part grades upwards into quartzose glauconite limestone of the younger Maekula Member (see Meidla 1997 for stratigraphic details).
It lies with distinct erosion on marls of the Lokh Formation and is enriched basally with sandy material and glauconite (Fig.
The evidence for low energy environment of deposition is consistent with other marine Cretaceous units that have yielded fossil birds, notably those with glauconite and chalk components (Olson and Parris, 1987).
These are coarse-grained sandstones, locally conglomeratic and calcareous-glauconitic which continuously grade upwards into fine-grained calcsiliceous sandstones, also with glauconite and with significant content of sponge parts (so called spongiolites).
The Cretaceous is composed of glauconite sand in the lower part and chalk and chalky marl in the upper part of the section of 140 m thick.
The top bed of the member is a strongly bioturbated, bio- and intraclastic pack- to grainstone, in the lower part strongly silty (bioclastic siltstone), and contains authigenic glauconite (Fig.
A common rock-forming mineral in the sandstone associated with the Rudabdnya deposit, glauconite is found as dispersed greenish micaceous flakes.
In February, the Company tested a Glauconite oil pool adjacent to the existing production at Atlee Buffalo.
The total stratigraphical range of Leoniorthis from the Billingen to Kunda stages embraces carbonate strata with varying contents of glauconite grains and faunas rich in Baltic endemics (Jaanusson 1979; Hints & Harper 2003; Tolmacheva et al.