glokonit (mika grubunda bir mineral)

listen to the pronunciation of glokonit (mika grubunda bir mineral)
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glauconite
A greenish form of mica found in greensand
It is a hydrous silicate of iron and potash
The green mineral characteristic of the greensand of the chalk and other formations
a green mineral consisting of hydrated silicate of potassium or iron or magnesium or aluminum; found in greensand