Mountain River beryl showing, Mackenzie Mts, Mackenzie District, Northwest Territories, CanadaNon-gemmy emerald deposit hosted in pyritic shales, siltstones and sandstones of the Neoproterozoic Twitya Formation, located at 1,370 metres elevation, 3 km south of Mountain River, 10 km SW of Shale/Palmer Lake, 150 km from Norman Wells, 500 km from Whitehorse (Yukon). Some geological similarities to the world famous colombian emerald deposits.
7 entries listed. 6 valid minerals.
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