Image: Okaite, Oka Niobium Mine, Quebec
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Description: Okaite from Oka Carbonatite Complex, Early Cretaceous; Oka Niobium Mine, Quebec, Canada. Okaite is a feldspathoidal ultramafic igneous rock composed of nepheline, melilite, biotite mica, plus minor accessory minerals.
Title: Okaite, Oka Niobium Mine, Quebec
Credit: Okaite (Oka Carbonatite Complex, Early Cretaceous; Oka Niobium Mine, Quebec, Canada)
Author: James St. John
Usage Terms: Creative Commons Attribution 2.0
License: CC BY 2.0
License Link: https://creativecommons.org/licenses/by/2.0
Attribution Required?: Yes
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