Definitions for: Glauconite

[n] a green mineral consisting of hydrated silicate of potassium or iron or magnesium or aluminum; found in greensand

Webster (1913) Definition: 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.

See Also: mineral