Palmer being studied for "critical" barite
North of 60 Mining News – March 1, 2018
Last updated 9/24/2020 at 6:59pm
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...