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Found in greensand
Answer for the clue "Found in greensand ", 10 letters:
glauconite
Alternative clues for the word glauconite
Word definitions for glauconite in dictionaries
The Collaborative International Dictionary
Word definitions in The Collaborative International Dictionary
Glauconite \Glau"co*nite\, n. [Cf. F. glauconite, glauconie, fr. L. glaucus. See Glaucous .] (Min.) The green mineral characteristic of the greensand of the chalk and other formations. It is a hydrous silicate of iron and potash. See Greensand .
Wikipedia
Word definitions in Wikipedia
Glauconite is an iron potassium phyllosilicate ( mica group) mineral of characteristic green color with very low weathering resistance and very friable. It crystallizes with a monoclinic geometry. Its name is derived from the Greek glaucos ( γλαυκος ) meaning ...
Wiktionary
Word definitions in Wiktionary
n. (context mineral English) A greenish form of mica found in greensand.
WordNet
Word definitions in WordNet
n. a green mineral consisting of hydrated silicate of potassium or iron or magnesium or aluminum; found in greensand
Usage examples of glauconite.
The sequence we would expect to see, therefore, would be nearshore sands with glauconite, then beach or barrier island sand, then a lagoon with vegetated tidal flats, and finally the mainland.
The sand layers had a greenish tint produced by a mineral called glauconite, almost always the sign of a marine or coastal environment.