Palmer being studied for "critical" barite
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Last updated 3/9/2018 at 4:14am
The copper- and zinc-rich deposit at the Palmer project in Southeast Alaska contains roughly 25 percent barite by weight.
Constantine Metal Resources Ltd. Feb. 27 said it has initiated a metallurgical test program to determine if a marketable barite concentrate can be produced as a co-product from the Palmer copper-zinc-gold-silver project in Southeast Alaska.
In a report published earlier this year, the U.S. Geological Survey named barite among 23 minerals considered "critical" to the economic and national securi...
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