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Fluorspar veins occur as fissure filling in granite intrusive believed to be of Devonian age; data on reserves, and mining activities.
Fluorspar veins occur as fissure filling in granite intrusive believed to be of Devonian age; data on reserves, and mining activities.
Newfoundland fluorspar
Can Min Met Bul
Carr, G.F. (Autor:in)
1954
5 pages
Aufsatz (Zeitschrift)
Englisch
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