/NOT FOR DISTRIBUTION TO UNITED
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CALGARY,
Dec. 10, 2013 /CNW/ - Boxxer Gold
Corp. (TSX Venture: BXX/OTC: BXXRF) ("Boxxer" or the
"Corporation") is pleased to announce the results of the
metallurgical testwork completed by Kappes Cassiday &
Associates ("KCA") located in Reno,
Nevada on representative samples of the mineralization from
the Empire copper project located near Mackay, Idaho (for more information on the
Empire Project see news release dated July
4, 2013). Information and head grade assays for the
samples tested are set out below;
KCA
Sample # |
Sample
Weight (Kgs) |
Client
ID |
Sample
Description |
Assay |
Cu (%) |
Au (g/t) |
Ag (g/t) |
69501
69504 |
122.22
105.78 |
EM-13-MET-1
EM-13-MET-4 |
Exoskarn
FeOx Clay Brecca |
1.58
1.10 |
0.062
0.273 |
21.65
22.69 |
Two (2) sulfuric acid bottle roll leach tests were conducted on
sample EM-13, MET-1 (KCA Sample No. 69501). One test was conducted
for a leach period of 240 hours, utilizing a 10 kilogram portion of
material crushed to a target size of 80% passing 19 millimeters. A
second test was conducted for a leach period of 96 hours, utilizing
a 1,000 gram portion of material that was ring and puck pulverized
to a target size of 80% passing 0.075 millimeters. Each acid leach
test maintained at a target concentration of 10.0 grams sulfuric
acid (98%) per liter of solution. Results are shown below:
KCA Test
Number |
Client
ID |
Sample
Description |
Crush size
P80 (mm) |
Head Grade
Copper (%) |
Calc. Head Grade
Copper (%) |
Copper
Recovery (%) |
Leach
Time (hrs) |
Acid
Consumed (kg) |
69905A
69905B |
EM-13-MET-1
EM-13-MET-2 |
Exoskarn
Exoskarn |
17.1
0.075 |
1.58
1.58 |
1.69
1.52 |
52.0
95.0 |
240
96 |
22.9
34.4 |
One cyanide bottle roll leach test was conducted on sample
EM-13, MET-4 (KCA Sample No. 69504). A 1,000 gram portion of the
material was ring and puck pulverized to a target size of 80%
passing 0.075 millimeters. The pulverized material was then leached
for 96 hours at a target concentration of 1.0 grams sodium cyanide
per liter of solution. Results for each sample are shown below:
KCA Test
Number |
Client
ID |
Sample
Description |
Crush size
P80 (mm) |
Head Grade
Gold (g/t) |
Calc. Head Grade
Gold (g/t) |
Gold
Recovery (%) |
Leach
Time (hrs) |
Cyanide
Consumed (kg) |
69906A |
EM-13-MET-4 |
FeOx Clay |
0.075 |
0.273 |
0.166 |
76.0 |
96 |
4.19 |
KCA Test
Number |
Client
ID |
Sample
Description |
Crush size
P80 (mm) |
Head Grade
Silver (g/t) |
Calc. Head Grade
Silver (g/t) |
Silver
Recovery (%) |
Leach
Time (hrs) |
Acid
Consumed (kg) |
69906A |
EM-13-MET-4 |
FeOx Clay |
0.075 |
22.59 |
21.2 |
37.0 |
96 |
4.19 |
Boxxer's President and CEO, Elmer
Stewart, explained; "the results of the metallurgical
testwork are encouraging and indicates a high percentage of the
copper present in the samples can be recovered in a relatively
short period of time. The copper recovery curve on bottle
roll test EM-13-MET-2 shows that 85% of the copper could be
recovered in approximately 25 to 30 hours. The next phase of
testing to optimise the results of the current test work requires a
trade off study to determine if heap leaching or agitated Vat
Leaching is the appropriate method to maximize the recovery of the
metals. We are continuing to evaluate the results for the gold and
silver recoveries to determine what further test work should be
conducted. These positive results will now allow the company to
move forward in defining the future progress on the project. We
expect to file an updated NI 43-101 report on the project within
the next two weeks".
Sample Preparation Procedures;
The samples used in the metallurgical testwork represent two
distinct styles of mineralization; a copper dominant style of
mineralization and a copper-gold-silver style of
mineralization. The sample preparation procedures for EM-13,
MET-1 (KCA Sample No. 69501 and EM-13, MET-4 KCA Sample No. 69504)
were:
- The sample material was stage crushed to 100% passing 75
millimeters. The stage crushed material was recombined, coned three
(3) times and quartered.
- Three (3) quarters were stored.
- The remaining quarter was weighed and oven dried for moisture
content. The dried material was then stage crushed to 100% passing
25 millimeters, and size adjusted to a target size of 80% passing
19 millimeters. The size adjusted material was recombined, coned
three (3) times and quartered.
- From the blended material, a 10 kilogram portion was split out
and utilized for a coarse sulfuric acid bottle roll leach test. The
remaining material was stored.
- The remaining quarter was crushed to a nominal size of 1.70
millimeters, coned three (3) times and quartered.
- From the combined two quarters, of 1.70 millimeter material,
two (2) 200 gram portions were split out and individually ring and
puck pulverized to a target size of 80% passing 0.075 millimeters.
The pulverized portions were utilized for head analyses.
- From the combined 1.70 millimeter material, a 1,200 gram
portion was split out and ring and puck pulverized to a target size
of 80% passing 0.075 millimeters. From the pulverized material, a
1,000 gram portion was split out and utilized for a sulfuric acid
bottle roll leach test. The remaining material was stored.
Head Analyses:
Material utilized in head material was crushed to 100% passing 1.70
millimeters. From the blended minus 1.70 millimeter material,
duplicate 200 gram splits were ring and puck pulverized to a target
size of 80% passing 0.075 millimeters. Total copper analyses
were completed utilizing inductively coupled argon plasma-optical
emission spectrophotometer (ICAP-OES) as well as FAAS
methods. Gold and silver analyses were conducted on duplicate
200 gram splits. Gold content was determined using standard fire
assay methods with flame atomic absorption spectrophotometric
(FAAS) finish. Silver content was determined using wet chemistry
methods (4-acid digestion) with FAAS finish. Mercury as well as
semi-quantitative analyses for a suite of individual elements and
whole rock constituents was determined using ICAP-OES (lithium
metaborate fusion/ICAP). Sulfur and carbon content as well as
sulfide and sulfate sulfur speciation was determined using a LECO
CS 230 unit.
Elmer B. Stewart,
MSc. P. Geol., President of Boxxer Gold, is the Company's nominated
Qualified Person pursuant to National Instrument 43-101, Standards
for Disclosure for Mineral Projects, has reviewed the technical
information disclosed in this news release.
About Boxxer Gold Corp.
Boxxer is a Canadian junior resource company involved in the
exploration for large polymetallic copper deposits in North America. Boxxer's active projects
include the Boss and Buena Vista copper projects in the state of
Nevada, the Empire
copper-gold-silver property in Idaho, the DOK copper-gold porphyry property
in Northwest B.C., the East Breccia copper-silver- molybdenum
property in Ontario. Boxxer
also has the Gordon Lake gold project located 110 kilometres north
of Yellowknife NWT, Canada.
Neither the 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.
Forward-Looking Information: This
news release may contain certain forward-looking information. All
statements included herein, other than statements of historical
fact, are forward-looking information and such information involves
various risks and uncertainties. There can be no assurance that
such information will prove to be accurate, and actual results and
future events could differ materially from those anticipated in
such information. In particular, this press release contains
forward looking information in relation to the completion of
preliminary metallurgical testwork on several types of
mineralization from the Empire project. There is no certainty that
additional metallurgical testwork will increase the percentage
copper recoveries or identify a methodology that can recover
significant concentrations of copper-gold-silver or that any
copper-gold-silver will be recovered. In addition, there is no
certainty that Boxxer will exercise its option on the Empire
Project. For any forward-looking information given, Management has
assumed that the results it has received and reviewed in relation
to the Empire Project and the interpretation thereof are reliable,
and has applied interpretation methodologies which are consistent
with industry standards. Although Management has a reasonable basis
for the conclusions drawn, actual results may differ materially
from those currently anticipated in such forward-looking
information. A description of additional assumptions used to
develop such forward-looking information and a description of risk
factors that may cause actual results to differ materially from
forward-looking information can be found in Boxxer's disclosure
documents on the SEDAR website at www.sedar.com. Boxxer does not
undertake to update any forward-looking information except in
accordance with applicable securities laws.
SOURCE Boxxer Gold Corp.