Atlanta Gold Announces Positive Results from Preliminary Metallurgical Testwork
26 Giugno 2013 - 7:51PM
OTC Markets
June
26, 2013
NEWS RELEASE
Atlanta Gold Announces
Positive Results from Preliminary Metallurgical
Testwork
Toronto, Ontario ? Atlanta
Gold Inc.
(TSXV: ATG; OTCQX: ATLDF)
today announced positive metallurgical test results from 11 tons of
bulk
stock material previously washed by a sluice/jig plant located at
the Knife River
Corporation?s facility in Boise, Idaho (see news release dated
September 26,
2012) with the objective of obtaining 25 lbs of concentrate for
refining
evaluations and estimating costs.
The initial bulk sample of 107 tons processed by Knife River in
August
2012 recovered 20% of the gold values from an average feed of 0.051
ounces per
ton (opt) Au. Reprocessing in June 2013 of 11 tons of the materials
remaining
from the initial bulk sample and grinding to -20 mesh liberated
additional gold
and heavy metals produced a concentrate of 18.896 opt Au which was
verified by
an independent mine laboratory. Of the total gold, 66.6% was
recovered from
standard cyanidation. Using grind, roast and cyanidation, overall
recovery
rates increased to 88.9%.
Wm. Ernest Simmons, President & CEO commented: ?Additional lab
work
will be needed to optimize grinding, roasting and cyanidation at a
selected
toll recovery facility located out of state. We are very pleased
with this
initial result which demonstrates that with some fine tuning on the
gravity
test we will be able to maximize the recovery of the metals from
onsite
concentrates that are of a quality that justify toll processing and
refining costs.?
Sample
ID
|
Gold Head Grade (opt
Au)
|
Free
Gold
(mg
Au)
|
Gold
to
Carbon
(opt
Au)
|
Gold Tail Grade (opt
Au)
|
%
Recovery
|
Cyanidation only
|
18.896
|
55.745
|
7.200
|
8.173
|
66.6
|
Grind, roast and cyanidation
|
18.896
|
31.043
|
13.506
|
3.043
|
88.9
|
The objective for Final Recovery testing is to determine if the
onsite
gravity recovery system would produce a concentrate using only
water as a
medium. This testing supports the hypothesis that gravity
separation is a
viable option.
Bulk stock material was fed by hopper conveyor feeder to a ball
mill and
the outflow slurry delivered to a custom sluicing system with an 8
foot long spreading
flume and into a 30 inch wide by 4 foot long sluice box containing
low profile
riffles.
The sluice concentrates were collected after each 2,000 lb run.
The
concentrates were taken back to the shop, screened through a
20-mesh screen and
the -20 mesh was upgraded/cleaned on a 4x8 shaker table, producing
25 lbs of
heavy concentrate obtained from processing 11 tons of the feed
material.
The +20 mesh, shaker table tails, -20 mesh sluice concentrate, head
feed
samples, sluice tailings and overflow slimes were saved, dried,
sealed and sent
for assay.
Notable amounts of fine, free gold were visible in the concentrate
from
approximately to -20 mesh down to the finest gold the human eye can
detect.
Qualified Person
Eric Berentsen, a director of Atlanta Gold Inc. and a qualified
person as
defined by NI 43-101, has reviewed and verified the technical
information
contained in this news release. Mr. Berentsen is a Registered
Member of The
Society for Mining, Metallurgy and Exploration, Inc.
(SME).
About
the Company
Atlanta Gold Inc.
holds through its 100% owned subsidiary, Atlanta
Gold Corporation, leases, options or ownership interests in its
Atlanta
properties which comprise approximately 2,159 acres (8.74 square
kilometres)
located 90 air kilometers east of Boise, in Elmore County, Idaho. A
long
history of mining makes Atlanta very suitable for development of
new mining
projects. The Company is focused on
advancing its core asset, Atlanta, towards mine development and
production.
For further
information
contact:
Atlanta
Gold Inc.:
Wm. Ernest
Simmons
President and
CEO
Telephone:
(208)-424-3343
Email:
esimmons@atlantagold.com
|
Atlanta
Gold Inc.
Bill
Baird
Vice President
and CFO
Telephone:
(416) 777-0013
E-mail:
info@atgoldinc.com
|
CHF
Investor Relations
Jeanny
So
Director of
Operations
Telephone:
(416) 868-1079
ext 225
E-mail:
jeanny@chfir.com
|
To receive
Company news via email, contact bren@chfir.com
and mention ?Atlanta Gold News? in the subject line.
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THAT TERM IS
DEFINED IN THE POLICIES OF THE TSX VENTURE EXCHANGE) ACCEPTS
RESPONSIBILITY FOR
THE ADEQUACY OR ACCURACY OF THIS RELEASE.
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