Noble Mineral Exploration - Exploration Update: Holdsworth Oxide Sand Project Preliminary Metallurgical Results
2500 – 120 Adelaide St. West, Toronto, OntarioM5H 1T1
Phone: 416-214-2250
Fax: 416-367-1954
TSX.V: NOB FWB: NB7 OTC.PK: NLPXF
Noble Mineral Exploration - Exploration Update:
Holdsworth Oxide Sand Project
Preliminary Metallurgical Results
Toronto, Ontario - November 2, 2020 - Noble Mineral Exploration Inc. (“Noble” or the "Company") (TSX-
V:NOB, FRANKFURT: NB7, OTC.PK:NLPXF) is pleased to announce that, it has received metallurgical test
results from Montreal -based Dundee Sustainable Technologies Inc., (“Dundee” or “DST”) on Gold and Silver
recoveries from The Holdsworth Oxide Sands Property (the “Property”), located 25 kilometres northeast of Wawa,
Ontario in Corbiere and Esquega Townships.
A 20 kg oxide sand sample recently taken from the Property and assayi ng 7.93 g/t Au and 61.3 g/t Ag was
submitted to Dundee for metallurgical testing using its patented CLEVR Process™ “CLEVR”.
The oxide sand material was prepared (ground, mixed, homogenised & split) prior to being concentrated by
flotation. Two distinct flotation tests were conducted and generated concentrate products containing 35.84 g/t Au
(Flotation #1) and 33.19 g/t Au (Flotation #2). Gold recoveries from the flotation stage ranged between 50% and
52% with mass pulls of 8.6% (Flotation #1) and 10.7% (Flotation #2).
The Flotation #2 concentrate was submitted to both an oxidation and acid leaching pre-treatment prior to the gold
and silver extraction. Using CLEVR, 97.7% of the gold in the concentrate was recovered and 43.2% for silver.
Concentration in ppm (Mass in mg)
Sample Ag Au
NBL-BS-F2-C (Flotation) 286.95 (43.1) 33.19 (4.98)
NBL-BS-F2-C-OX (calcine) 336.4 (42.7) 38.35 (4.87)
NBL-BS-F2-C-OX-LA (residue) 285.1 (25.1) 53.82 (4.74)
NBL-BS-F2-C-OX-LA-CL (residue) 164.41 (14.25) 1.26 (0.109)
Metal Extraction using CLEVR in % 43.2% 97.7%
Noble’s next step would be to optimize the flotation process in order to further increase precious metal recoveries
with the goal of generating a marketable gold-silver rich concentrate and/or substantially reduce the amount of
material that will have to be pre-treated and leached.
Vance White is quoted as saying: “The test work conducted by DST demonstrated that gold, from a flotation
concentrate, may be leached, efficiently, post oxidation and acid leaching pre- treatment. We are very pleased
that we can recover the gold from the flotation concentrate in the high 90% range and silver in the 40% range
from the Holdsworth oxide sands and since the sulphur content in the samples that were tested is very low, the
extraction process would not likely generate acid in the tailings. Dundee classifies this concentrate as a very clean
concentrate.”
2500 – 120 Adelaide St. West, Toronto, OntarioM5H 1T1
Phone: 416-214-2250
Fax: 416-367-1954
Randy S.C. Singh P.Geo (ON), P.Eng (ON) VP- Exploration & Project Development a "qualified person" as such
term is defined by National Instrument 43-101 has verified the data disclosed in this news release, and has
otherwise reviewed and approved the technical information in this news release on behalf of Noble.
About Noble Mineral Exploration Inc.:
Noble Mineral Exploration Inc. is a Canadian- based junior exploration company which, in addition to its
shareholdings in Canada Nickel Company Inc., Spruce Ridge Resources Ltd. and MacDonald Mines Exploration
Ltd., and its interest in the Holdsworth gold exploration property in the area of Wawa, Ontario, holds approximately
72,000 hectares of mineral rights in the Timmins-Cochrane areas of Northern Ontario known as Project 81. Project
81 hosts diversified drill -ready g old, nickel- cobalt and base metal exploration targets at various stages of
exploration. More detailed information is available on the website at www.noblemineralexploration.com .
About Dundee Sustainable Technologies Inc.
DUNDEE Sustainable Technologies Inc. (“DST”) offers proprietary metallurgical processes for the treatment of
complex and refractory material from mining operations. DST’s processes are applied for the extraction of
precious metals from ores and concentrates. DST provides environmentally responsible, viable and efficient
processes, capable of handling ores which may not be processed with conventional approaches due to
metallurgical issues or environmental considerations.
DST CLEVR Process™ (“CLEVR” or the “Process”), a cyanide free gold extraction process, uses sodium
hypochlorite with a catalytic amount of sodium hypobromite in acidic conditions to put the gold into solution.
Contact time is short, and the Process operates in a fully closed loop. All chemicals are recycled within the circuit
and, if needed, sea water may be used and can be beneficial to the process. The CLEVR tailings are inert from
toxic substances, sulphide depleted and non- acid generating, and as a result, meeting and/or exceeding
environmental norms.
DST’s CLEVR Process eliminates the need for a costly tailings pond and their associated liabilities. CLEVR has
demonstrated, at the industrial scale, excellent gold recoveries within a fraction of the time needed for cyanidation
to obtain similar results. Precious metal deposits containing accessory base metals can also be treated effectively.
The efficiency of the process, coupled with its operating conditions, plant size and construction materials allow for
competitive capital and operating costs.
Cautionary Statement:
Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the
TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release. No stock exchange,
securities commission or other regulatory authority has approved or disapproved the information contained herein.
The foregoing information may contain forward-looking statements relating to the future performance of Noble
Mineral Exploration Inc. Forward- looking statements, specifically those concerning future performance, are
subject to certain risks and uncertainties, and actual results may differ mat erially from the Company’s plans and
expectations. These plans, expectations, risks and uncertainties are detailed herein and from time to time in the
filings made by the Company with the TSX Venture Exchange and securities regulators. Noble Mineral Exploration
Inc. does not assume any obligation to update or revise its forward-looking statements, whether as a result of new
information, future events or otherwise.
Contacts:
Noble Mineral Exploration Inc.
H. Vance White, President
Phone: 416-214-2250
Fax: 416-367-1954
Email: [email protected] IR Email: [email protected]