Rokmaster Reports on Revel Ridge Metallurgical Gold Flowsheet Development in Conjunction with EnviroMetal Technologies Inc.
Rokmaster Reports on Revel Ridge
Metallurgical Gold Flowsheet Development in
Conjunction with EnviroMetal Technologies
Inc.
VANCOUVER
,
Nov. 19, 2021
/CNW/ - Rokmaster Resources Corp. (TSXV: RKR) (OTCQB:
RKMSF) (FSE: 1RR1) ("Rokmaster" or the "Company") is pleased to announce 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 ongoing 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.
("EnviroMetal") (CSE: ETI) (OTCQX: EVLLF) (7N2: FSE) 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 Figure 1 and aligns well.
Figure 1: JL1 Composite Head Assays
Products
Element
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.
Figure 2 illustrates the averaged results from tests undertaken. The continuous gravity test
recovered approximately 26.3% of the gold and the flotation concentrate with another 54.4% for a
combined gold recovery to the Pressurized Oxidation (POX) feed of 80.7%, in a much-reduced
mass pull of approximately 29%. Overall gold recovery from the concentrates, including to the lead
and zinc concentrates, was more than 91%.
Figure 2: 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 optimisation, their technology successfully
recovered 93% the gold.
John Mirko
, President and CEO 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 it's 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 Mr.
Stacy Freudigmann
, P.Eng.
F.AusIMM., who is a Qualified Person as set out in National Instrument 43-101 and is independent
of Rokmaster.
For shareholder information please contact:
Mike Kordysz,
, Ph. +1 (604) 319-3171
On Behalf of the Board of Directors of
Rokmaster Resources Corp.
John Mirko
,
President & Chief Executive Officer.
Neither TSX Venture Exchange nor its Regulation Services Provider (as that term in defined in the
policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this
press release.
About Rokmaster
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. The three projects
include:
1
.
Revel Ridge.
Rokmaster is currently conducting an underground drill program at the Revel
Ridge Project located in southeastern
British Columbia
35 km's north of the
City of Revelstoke
.
Revel Ridge is host to a high-grade gold and polymetallic orogenic sulphide deposit which has
been the subject of a PEA Technical Report dated
December 8, 2020
.
2
.
Big Copper.
Rokmaster controls the Big Copper Property in the
Kimberley
area of southern
British Columbia
. Big Copper is a high-grade copper-silver occurrence hosted in mid-Proterozoic
rocks. Copper-silver mineralization has been traced for 4.5 km along strike and is exposed in a
series of adits and trenches over approximately
500 m
of vertical relief. Big Copper likely
belongs to a class of stratabound replacement copper-silver deposits hosted within mid –
Proterozoic quartzitic sediments. The style and stratigraphic setting of mineralization at Big
Copper may be analogous to similar stratabound silver-copper deposits in
NW Montana
, e.g.,
the Troy Mine (a significant past producer of copper and silver) and
Hecla's
Montanore pre-
development project, with, 112 million tonnes Inferred at 54.8 g/t Ag and 0.7% Cu*. (
Hecla
,
2020 Annual Report, Pg. 119.
www.hecla-mining.com
).
2
Footnote (2).
The qualified person has been unable to verify this inferred resource.
3
.
Duncan Lake Zinc.
Duncan is a carbonate hosted silver-lead-zinc deposit located near Duncan
Lake in southern
British Columbia
. The deposit is hosted within a Cambrian age Badshot
Limestone which also hosts Zn-Pb-Ag mineralization at Teck's recently producing Pend D'Oreille
Mine as well as past producers including the Blue Bell Mine, Reeves MacDonald Mine, Jersey-
Emerald and HB mines. Mineralization at Duncan Lake forms in the crest and limbs of the
regional scale Duncan Lake anticline, where strong zinc-lead +/- silver mineralization has been
traced by surface and underground drilling for approximately
2,500 m
. At Duncan Lake,
Rokmaster will be targeting > 30 Mt of >10% Zn+Pb+Ag. Historical background and a
geological synthesis of the Duncan Lake deposit is provided in a NI 43-101 report by
Lane, B.,
2018: Technical Report on the Duncan Lake Project.
CAUTIONARY NOTE REGARDING FORWARD LOOKING STATEMENTS: This news release may
contain forward-looking information within the meaning of applicable securities laws ("forward-
looking statements"). Forward-looking statements are statements that are not historical facts and
are generally, but not always, identified by the words "expects," "plans," "anticipates," "believes,"
"intends," "estimates," 'projects," "potential" and similar expressions, or that events or conditions
"will," "would," "may," "could" or "should" occur. These forward-looking statements are subject to a
variety of risks and uncertainties which could cause actual events or results to differ materially from
those reflected in the forward-looking statements, including, without limitation: risks related to
fluctuations in metal prices; uncertainties related to raising sufficient financing to fund the planned
work in a timely manner and on acceptable terms; changes in planned work resulting from weather,
logistical, technical or other factors; the possibility that results of work will not fulfill expectations and
realize the perceived potential of the Company's properties; risk of accidents, equipment
breakdowns and labour disputes or other unanticipated difficulties or interruptions; the possibility of
cost overruns or unanticipated expenses in the work program; the risk of environmental
contamination or damage resulting from Rokmaster's operations and other risks and uncertainties.
Any forward-looking statement speaks only as of the date it is made and, except as may be
required by applicable securities laws, the Company disclaims any intent or obligation to update any
forward-looking statement, whether as a result of new information, future events or results or
otherwise.
SOURCE
Rokmaster Resources Corp.
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For further information:
For more information please contact Mr. John Mirko, President & CEO of
Rokmaster Resources Corp., [email protected], Ph. 1-604-290-4647 or the Company's
website: www.rokmaster.com
CO: Rokmaster Resources Corp.
CNW 06:00e 19-NOV-21