AURELIO ANNOUNCES HIGHLY ENCOURAGING METALLURGICAL
TEST RESULTS FOR HILL COPPER LEACH PROJECT
LITTLETON, COLORADO, April 28, 2008 News Release #08-11
Aurelio Resource
Corporation (OTCBB : AULO, Frankfurt
: F3RA) is pleased to announce highly encouraging results from sequential
leach test programs completed by two independent labs on mineralized material
from the Company’s wholly-owned Hill Copper Leach Project, located in
Cochise County, Arizona.
The results confirm that secondary (chalcocite) copper
mineralization at Hill is amenable to extraction of copper using
industry-standard acid leach solution methods.
Initial sequential leach
analyses of individual five-foot drilling samples from the 2007 drilling
campaign were completed by Skyline
Assayers & Laboratories (“Skyline”) in Tucson, Arizona.
Similar analyses were completed on a larger composite sample by Mountain States Research & Development
International (“MSRDI”) in Vail, Arizona. These tests were conducted to
determine if the chalcocite blanket is metallurgically-amenable to the
conventional heap leach process.
For
each test program, drill holes and sample intervals of secondary (chalcocite)
copper mineralization were selected to represent variable combinations of
grade, lithology and mineralogy in the Hill Copper Leach Project. The typical
profile of mineralization at the Hill Project consists of a barren leached cap
which overlies a blanket-like secondary copper zone (referred to as the Hill
Copper Leach Project); the secondary copper blanket, in turn, is underlain by
primary (sulfide) copper-zinc mineralization with significant silver and gold
credits.
The Skyline test work
(detailed in Table 1) indicated that the weighted-average soluble copper as
determined by sequential leach analysis is 85%:
Table 1:
Sequential Leach Results (Skyline Labs) For Hill Copper Leach Project
Drill
Hole
|
From
|
To
|
Interval
|
Copper
Grade
(total
copper)
|
Soluble
Copper
|
BR07-24
|
170 ft
|
265 ft
|
95 ft
|
0.32 %
|
88 %
|
BR07-25
|
200 ft
|
405 ft
|
205 ft
|
1.25 %
|
79 %
|
BR07-26
|
120 ft
|
170 ft
|
50 ft
|
0.19 %
|
89 %
|
BR07-27
|
130 ft
|
295 ft
|
165 ft
|
0.47 %
|
89 %
|
BR07-28
|
100 ft
|
145 ft
|
45ft
|
0.13 %
|
90 %
|
|
|
|
|
|
|
|
|
|
Weighted Average:
|
0.68 %
|
85%
|
Note:
Results for BR07-25 are lower than the other
four drill holes because of a single, five-foot interval which had an extremely
high copper content, but a lower solubility for that corresponding test
interval.
In order to confirm these
results, Aurelio requested a composite sample from the drilling rejects to be
similarly tested by MSRDI.
MSRDI’s analysis was
carried out on a larger composite sample from the 200 to 405 feet interval in
drill hole BR07-25, and indicates that 88% of the copper is soluble (compared
to 79% soluble copper in the Skyline tests).
The results from MSRDI
and Skyline confirm that the secondary (chalcocite) copper mineralization in
the Hill Copper Leach Project is soluble, and potentially treatable by standard
heap-leach technology. Based on these encouraging results, MSRDI has been
contracted to continue metallurgical testwork (bottle roll tests followed by
column tests) to determine additional parameters for a heap-leach operation at
the Hill Copper Leach Project.
“We
are very encouraged by these preliminary metallurgical results”
said Steve Doppler, President & CEO.
“These relatively high soluble copper values
indicate the large chalcocite copper blanket mineralization in the Hill Copper
Leach Project appears amenable to conventional, low-cost acid heap leaching
technology and processing methods. This may allow us to design a starter open
pit mine and SX/EW heap leach operation as an initial phase of the overall
development of our 100% owned Hill Copper-Zinc Project, and provide access to
the deep, high-grade sulfide deposit beneath. We plan to move ahead with
further metallurgical testing, and will release results when available.”
About the Company
Aurelio
Resource Corporation is a mineral exploration company focused
on fast-track development of its wholly-owned Hill Copper-Zinc Project,
which the Company believes contains a number of low-cost, bulk-tonnage,
open-pit-mineable deposits close to surface containing significant amounts of copper, zinc, silver and gold. The Company has previously
announced an independent
estimate of the mineralized material at the MAN Area of the Project
totaling 63.8 million tons at an average grade of 0.56% copper-equivalent.
Aurelio has also acquired the rights to explore, and an option to purchase, the
Gavilanes gold
porphyry deposit in Durango,
Mexico.
On behalf of the Board of
Directors of Aurelio Resource Corporation
Contacts:
Stephen Doppler Diane
Dudley
President & CEO Investor
Relations
303-795-3030 303-945-7273
(direct)
800-803-1371 303-945-7270
(fax)
For additional
information, please visit our website (www.AurelioResource.com)
and/or send an email to DianeD@AurelioResource.com..
Legal
Notice Regarding Forward Looking Statements
Statements
in this news release that are not historical are 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",
"aims", "potential", "goal",
"objective", "prospective", and similar expressions, or
that events or conditions "will", "would", "may",
"can", "could" or "should" occur. Information
inferred from the interpretation of drilling results and information concerning
mineral resource estimates may also be deemed to be forward-looking statements,
as it constitutes a prediction of what might be found to be present when and if
a project is actually developed. Forward-looking statements in this news
release include: that MSRDI has been contracted to continue with metallurgical
testwork (bottle roll tests followed by column tests) to determine additional
parameters for a heap-leach operation at the Hill Copper Leach Project; that
the large chalcocite copper blanket mineralization could be amenable to
conventional, low-cost acid heap leaching technology and processing method;
that the Company could possibly design a starter open pit mine and SX/EW heap
leach operation to extract such mineralized material; and, that such an
operation could provide access to the deep, high-grade sulfide deposit
underlying the Hill Copper Leach Project.
It is important to note that the
Company's actual outcomes may differ materially from those statements contained
in this press release. Factors which may delay or prevent these forward
looking statements from being realized include misinterpretation of data; that
we may not be able to keep our qualified personnel; that funds expected to be
received may not be; that our estimates of mineral resources are inaccurate;
uncertainties involved in the interpretation of drilling results and other
tests and the estimation of resources; that we may not be able to get
equipment or labor as we need it; that we may not be able to raise sufficient
funds to complete our intended exploration, purchase, lease or option payments;
that our applications to drill may be denied; that weather, logistical problems
or hazards may prevent us from exploration; that analysis of data cannot be
done accurately and at depth; that results which we have found in any
particular location are not necessarily indicative of larger areas of our
property; and that despite encouraging data there may be no commercially
exploitable mineralization on our properties. Readers should refer to the risk
disclosures outlined in the Company's most-recent Form
10-K and Form 10-Q Reports filed with the Securities and Exchange
Commission.
Regards,
Diane G. Dudley | Investor
Relations
Aurelio Resource
Corporation
5554 S. Prince Street, Suite 200 | Littleton, CO
80120
Direct Line: 303-945-7273 | Fax:
303-945-7270 |
Toll Free: 1-800-803-1371
Email: dianed@aurelioresource.com | Web
site: www.aurelioresource.com
stock traded as AULO on
Over the Counter Bulletin Board (OTCBB)