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Barite concentrate from Mountain Boy Minerals’ B.C. project surpasses industry standards

by Greg Klein | July 18, 2017

It’s a commodity essential to oil and gas drilling and one that the North American industry relies mostly on imports. But Mountain Boy Minerals TSXV:MTB has found barite on its Surprise Creek property in northwestern British Columbia’s Golden Triangle. Now metallurgical tests have produced a concentrate that far exceeds standards of the American Petroleum Institute, the company announced July 18.

Barite concentrate from Mountain Boy Minerals’ B.C. project surpasses industry standards

Mountain Boy explores the Golden Triangle for base
and precious metals, as well as industrial minerals.

“We are talking about a mineral which, according to the 2016 USGS report on barite, sells for an average of $198 f.o.b. mill with industry relying on imports for 78% of its needs,” said chairperson René Bernard. “With this knowledge in hand we can now promote our location within short trucking distance to deep water port, infrastructure, metal credits and proximity to key markets to attract industry partnerships. Our goal is to have a 43-101 industrial mineral resource later this year after all drilling is completed.”

Flotation tests were applied to a VMS-mineralized intercept that assayed 0.12 g/t gold, 28 g/t silver, 1.21% zinc, 0.03% lead, 0.31% copper and 46.73% barite over 18.94 metres. The hole remained open as drilling was suspended due to bad weather.

Flotation first separated copper and zinc, producing a concentrate of 26.2% copper at 70.5% recovery and 53.8% zinc at 89.1% recovery in an open cycle batch test. Higher recovery would be anticipated in a closed circuit test, the lab reported.

The tailings then underwent open circuit flotation, producing 91.6% BaSO4 at 83.2% recovery. The lab estimated that locked cycle tests could bring barite recovery closer to 90%.

The core comes from a drill hole on the Ataman zone, which extends over 1,200 metres of strike and comprises one of a number of the 100%-optioned property’s VMS zones. Last year’s surface work found a 25-metre-wide barite zone with significant base metals values 120 metres west of the hole, Mountain Boy stated. “Surface work also indicated barite zones extending to the mountaintop.”

This year’s Surprise Creek plans include further definition of sulphide/sulphide-barite zones and natural barite veins, along with additional metallurgical work on 2017 drill core, as well as the 43-101 resource.

Reporting on another northwestern B.C. project earlier this month, Mountain Boy announced the third hole in a row showing visible gold from its 35%-held Red Cliff property.

The company’s Golden Triangle portfolio also includes a 100% option on the BA project; a 20% stake in Silver Coin, a gold-silver-base metals project with a resource estimate; the MB property, with historic, non-43-101 polymetallic estimates; a 50% stake in the George property, with non-43-101 copper-silver-gold estimates; the American Creek and Bear Valley silver-base metals projects; as well as copper-gold claims. In southern B.C., Mountain Boy plans to begin PEA studies on its Manuel Creek zeolite project.

Read Isabel Belger’s interview with Mountain Boy Minerals chairperson René Bernard.

See an infographic about B.C.’s Golden Triangle.

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