n.
Pronunciation: ' glo ̇ -k ə - ˌ n ī t
Function: noun
Etymology: German Glaukonit, irregular from Greek glaukos
Date: 1836
: a mineral consisting of a dull green earthy iron potassium silicate occurring in greensand
– glau · co · nit · ic \ ˌ glo ̇ -k ə - ' ni-tik \ adjective