Mr. John Mirko reports
ROKMASTER REPORTS ON REVEL RIDGE METALLURGICAL GOLD FLOWSHEET DEVELOPMENT IN CONJUNCTION WITH ENVIROMETAL TECHNOLOGIES INC.
Rokmaster Resources Corp. has provided test results of the current work program on the gold-dominant mineralization from the Revel Ridge property located in southeastern British Columbia.
The company's recent test program was part of the continuing assessment of metal recovery technologies to refine and optimize the metallurgical responses of the Revel Ridge Main zone (RRMZ) mineralization.
The program also demonstrated positive recoveries using EnviroMetal Technologies Inc.'s environmentally friendly and sustainable formula as a viable alternative to cyanide treatment.
RRMZ metallurgy: Previous bulk samples were shipped to Base Metallurgical Labs in Kamloops, B.C., and composited using the same procedures and recipe as formerly used to remake the JL1 composite test sample. The head assay comparison is shown in an attached table and aligns well.
JL1 COMPOSITE HEAD ASSAYS
Products Pb (%) Zn (%) Au (g/t) Ag (g/t) S (%) As (%)
JL1 composite -- 2021 2.49 4.01 7.66 59.80 11.00 5.25
JL1 composite -- 2011 2.45 3.90 6.99 57.60 11.40 5.90
The 2021 JL1 composite was used to successfully test the new flowsheet without using any dense media separation or preconcentration, and the insertion of continuous gravity concentration prior to lead, zinc and sulphide sequential flotation. Gravity concentrate and sulphide concentrate were then combined to create the pressure oxidation (POX) feed.
The "Gold recovery results" table illustrates the averaged results from tests undertaken. The continuous gravity test recovered approximately 26.3 per cent of the gold and the flotation concentrate with another 54.4 per cent for a combined gold recovery to the pressurized oxidation (POX) feed of 80.7 per cent, in a much-reduced mass pull of approximately 29 per cent. Overall gold recovery from the concentrates, including to the lead and zinc concentrates, was more than 91 per cent.
GOLD RECOVERY RESULTS
Product Mass pull (%) Au (g/t) Ag (g/t) Au (%) Ag (%)
Gravity concentrate 6.3 36.4 126.5 26.3 11.2
Gold sulphide concentrate 23.0 21.2 23.6 54.4 7.7
Gravity + sulphide (POX feed) 29.3 24.5 88.7 80.7 18.9
The POX test work continues and as part of Rokmaster's commitment to sustainability, several recovery tests on the oxidized concentrates were performed using Envirometal's environmentally friendly and sustainable formula. Even with minimal optimization, its technology successfully recovered 93 per cent of the gold.
John Mirko, president and chief executive officer of Rokmaster, stated: "In this ever-changing period where mining companies should be addressing environmental sustainability, Rokmaster is proud to have included an evaluation of Envirometal's sustainable reagent capabilities as part of our program. Given the encouraging initial results, we will continue to test its capabilities of high gold recoveries on our material."
The technical information in this news release has been prepared in accordance with Canadian regulatory requirements has been reviewed and approved by Stacy Freudigmann, PEng, FAusIMM, who is a qualified person as set out in National Instrument 43-101 and is independent of Rokmaster.
About Rokmaster Resources Corp.
Rokmaster controls a portfolio of three significant exploration and development projects all of which are located in Southern British Columbia in regions of excellent infrastructure.
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