TORONTO, ONTARIO--(Marketwired - Oct 5, 2017) - First Cobalt Corp. (TSX VENTURE:FCC)(OTC:FTSSF) (the "Company") is pleased to
announce the initial results from a mineralogical assessment of sample material from various historical mines throughout the
Cobalt Camp in Ontario, Canada.
Highlights
- High grade vein style mineralization containing up to 9.22% cobalt and over 5,300 g/t silver found in muckpiles throughout
the Cobalt Camp can be considered representative of historic mineralization styles and useful for mineralogical tests
- Similarity of cobalt minerals in all types of veins allows for a consistent processing system for the various deposits
throughout the camp
- Disseminated and fracture-controlled mineralization styles, as found at the Bellellen and Haileybury Mines, with cobalt
values of 0.25% and 0.5% occur in the same mineral phases, thus can be processed using one system
- While generally lower in abundance, there may be opportunities for the metallurgical recovery of copper and nickel
Trent Mell, President & Chief Executive Officer, commented:
"We are finding high grade values in various mineralization styles, including disseminated and fractured mineralization
styles, which is supportive of our strategy for the Cobalt Camp. In addition, these mineralogical test results are encouraging as
they suggest that both cobalt-rich and silver-rich mineralization styles may be processed using similar flowsheets. The Cobalt
Camp is rich with muckpiles located in proximity to historic mines and they provide an opportunity to study discarded material
previously mined underground without the additional cost of drilling. The results of this study support further work to assess
the muckpiles for processing, and they could potentially be a future source of initial ore."
Program Overview
On conclusion of the mergers with Cobalt One Ltd. and CobalTech Mining Inc. (previously announced June 26, 2017) First Cobalt
will have a small mill and a permitted refinery facility. Historical mining in the Camp was focused on the production of silver
with cobalt as a secondary revenue stream. Surface muckpiles such as those found on the past producing Bellellen Mine (see
September 28, 2017 press release) are known to contain cobalt, silver, nickel and copper. First Cobalt has abundant stockpiles on
its property.
The mineralogical assessment is intended to quantify modal mineralogy in representative samples of different mineralization
styles and report specifically on the deportment of cobalt, silver and nickel. These results are an important first step to
developing a metallurgical process for optimal cobalt recovery at these facilities.
Six representative samples of variably textured mineralization styles from surface muckpiles throughout the Cobalt Camp were
submitted to XPS Consulting and Testwork Services in Sudbury, Ontario for mineralogical assessment by QEMSCAN (Quantitative
Evaluation of Materials by Scanning Electron Microscope) and EPMA (Electron Probe MicroAnalysis).
Assays for the samples studied are as follows:
Table 1. Analytical Test Results
Mineralization Style |
Sample |
Co
(%) |
Ag
(g/t) |
Ni
(%) |
Cu
(%) |
Vein - Silver |
1 |
8.34 |
5,330 |
5.15 |
0.30 |
Vein - Cobalt |
2 |
9.22 |
31.1 |
0.05 |
0.06 |
Vein - Cobalt |
3 |
7.22 |
67.9 |
0.08 |
0.45 |
Disseminated |
4 |
0.50 |
154 |
0.09 |
0.91 |
Fracture |
5 |
0.25 |
19.9 |
0.04 |
0.32 |
Stockwork |
6 |
0.03 |
0.5 |
0.01 |
<0.005 |
The assays demonstrate the range of metal grades that occur throughout the Cobalt Camp.
Mineralogy and Deportment
The cobalt deportment is based on calculations from QEMSCAN and EPMA analyses. Deportment quantifies the number of mineral
phases that are present within a sample; fewer phases are ideal for a consistent processing system.
Table 2. Cobalt Deportment
|
Mineralization Style |
Mineral Phases |
Vein
Silver |
Vein
Cobalt |
Vein
Cobalt |
Disseminated |
Fracture |
Stockwork |
Sample # |
1 |
2 |
3 |
4 |
5 |
6 |
Skutterudite |
67.90 |
84.52 |
12.89 |
0.08 |
16.47 |
2.81 |
Safflorite |
8.92 |
0.96 |
71.81 |
0.01 |
0.21 |
0.18 |
Glaucodot |
8.82 |
14.03 |
0.45 |
75.90 |
79.34 |
92.51 |
Pyrite |
0.00 |
0.00 |
0.00 |
20.94 |
0.24 |
0.04 |
Gersdorffite |
3.08 |
0.00 |
0.01 |
0.70 |
0.51 |
1.41 |
Lollingite |
0.56 |
0.27 |
14.55 |
0.52 |
3.17 |
1.90 |
Chathamite |
0.50 |
0.00 |
0.00 |
0.00 |
0.01 |
0.00 |
Nickelskutterudite |
10.04 |
0.00 |
0.00 |
0.05 |
0.00 |
0.01 |
Arsenopyrite |
0.19 |
0.22 |
0.25 |
1.80 |
0.03 |
1.13 |
Tetrahedrite |
0.00 |
0.00 |
0.03 |
0.00 |
0.00 |
0.01 |
Total (mass % Co) |
100 |
100 |
100 |
100 |
100 |
100 |
Fracture-controlled and disseminated styles represent types of mineralization where metallic minerals occur outside of veins
that are potentially amenable to bulk mining methods. The dominant Co mineral is glaucodot (Co,Fe)AsS as well as Co-bearing
pyrite. The Cu-rich sample from Bellellen contains chalcopyrite. All of these are sulphide minerals that are processed by more
traditional concentration methods. Due to the nature of this mineralization style, silicate minerals are prevalent, although at
Bellellen carbonate minerals do occur with the sulphide minerals.
Stockwork style carbonate veining is also common in several muckpiles and contains visible metallic minerals. The sample
analysed by XPS contains elevated Ag occurring as freibergite which is also a sulphide-bearing mineral.
The three vein-textured samples have high levels of Co-As minerals where Co and As occur within the same phases. The main
Co-bearing minerals are skutterudite (Co,Fe,Ni)As2-3, and safflorite (Co,Fe,Ni)As2. These minerals contain
17-20% Co. XPS concludes that high-grade Co samples will have high levels of As. The refinery (currently co-owned with Cobalt One
Ltd.) is designed to process arsenic-bearing material through its pressure oxidation circuit. This refinery is one of only four
such facilities in Canada (the others belonging to Vale, Glencore and Sherritt International) and is the only refinery in North
America with no set limits on processing or storing arsenic from feeds.
The host rock for the three high grade vein-textured samples are carbonates. Where skutterudite is present, the host is
calcite. In the sample containing safflorite, the host is dolomite. High Ni, up to 5.2%, occurs in some Ag-rich veins primarily
as nickelskutterudite, skutterudite, and lesser amounts of gersdorffite. Native Ag makes up the majority of Ag in one high grade
sample and occurs as very large (up to 7mm) wires.
Historically, the key economic metals produced in the Cobalt Camp were silver and cobalt from veins. This study shows that
silver predominantly exists as native silver whereas cobalt is predominantly present as skutterudite and safflorite. While
generally lower in abundance, there may be opportunities for the metallurgical recovery of copper and nickel as well.
Next Steps
With this mineralogical and deportment information, First Cobalt is now able to proceed with preliminary, bench-scale
metallurgical studies to design a milling flowsheet for this material. Additional studies including ore-sorting and a more
systematic muckpile sampling program will also be undertaken.
About First Cobalt
First Cobalt's objective is to create the largest pure-play cobalt exploration and development company in the world. The
Company's primary focus is on its Greater Cobalt Project, including an option for the former producing Keeley-Frontier mine, a
high-grade mine that produced over 3.3 million pounds of cobalt and 19.1 million ounces of silver from 301,000 tonnes of ore.
Upon completion of the mergers with Cobalt One Ltd. and CobalTech Mining Inc., First Cobalt will control over 10,000 hectares of
prospective land and 50 historic mining operations in the Cobalt Camp in Ontario, Canada as well as a mill and a permitted
refinery facility.
Qualified Person
Expert services relating to the mineralogical study were provided by XPS Consulting and Testwork Services based in Sudbury,
Ontario. The work was carried out under the supervision of Lori Kormos, Principal Geoscientist (P.Geo.), XPS. The information in
this release was reviewed and prepared under the direction of Frank Santaguida, P.Geo., Vice President of Exploration for First
Cobalt, who is a qualified person as defined by National Instruments 43-101.
Assays values were determined by Activation Laboratories in Ancaster, Ontario. The analytical method used for Co, Ag, Ni, and
Cu was a sodium peroxide fusion preparation and an ICP finish. Over-range silver values were obtained by gravimetric
concentration and fire assay analyses. Lab standards and repeats validate the quality of the analyses.
On behalf of First Cobalt Corp.
Trent Mell, President & Chief Executive Officer
For more information visit www.firstcobalt.com.
Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in policies of the TSX Venture
Exchange) accepts responsibility for the adequacy or accuracy of this release.
Cautionary Note Regarding Forward-Looking Statements
This news release may contain forward-looking statements and forward-looking information (together, "forward-looking
statements") within the meaning of applicable securities laws and the United States Private Securities Litigation Reform Act of
1995. All statements, other than statements of historical facts, are forward-looking statements. Generally, forward-looking
statements can be identified by the use of terminology such as "plans", "expects", "estimates", "intends", "anticipates",
"believes" or variations of such words, or statements that certain actions, events or results "may", "could", "would", "might",
"occur" or "be achieved". Forward-looking statements involve risks, uncertainties and other factors that could cause actual
results, performance and opportunities to differ materially from those implied by such forward-looking statements. Factors that
could cause actual results to differ materially from these forward-looking statements include the reliability of the historical
data referenced in this press release and risks set out in First Cobalt's public documents, including in each management
discussion and analysis, filed on SEDAR at www.sedar.com. Although First
Cobalt believes that the information and assumptions used in preparing the forward-looking statements are reasonable, undue
reliance should not be placed on these statements, which only apply as of the date of this news release, and no assurance can be
given that such events will occur in the disclosed times frames or at all. Except where required by applicable law, First Cobalt
disclaims any intention or obligation to update or revise any forward-looking statement, whether as a result of new information,
future events or otherwise.