Mountain Boy Minerals: Barite Concentrate from Surprise Creek VMS Test far exceeds API Standards - Cu Grade 26.2% at 70.5% recovery and Zn Grade 53.8% at 89.1% Recovery https://globenewswire.com/news-release/2017/07/18/1047748/0/en/Barite-Concentrate-from-Surprise-Creek-VMS-Test-far-exceeds-API-Standards-Cu-Grade-26-2-at-70-5-recovery-and-Zn-Grade-53-8-at-89-1-Recovery.html July 18, 2017 06:00 ET |