Mirasol's partner Coeur upbeat about Joaquin silver project drill results

    VANCOUVER, Aug. 17 /CNW/ - Mirasol Resources Ltd. (TSX-V: MRZ, Frankfurt:
M8R) - Mirasol resources wishes to inform its shareholders that Coeur d'Alene
Mines Corporation ("Coeur") has commented on the positive drill results from
Mirasol's Joaquin project in their quarterly report (Q2), webcast and
presentation published on August 6, 2009
GRJRD0tMXxUeXBlPTM=&t=1). The Joaquin project is a joint venture between Coeur
and Mirasol announced November 20, 2006.

    Excerpts from Coeur's webcast include:

        "Joaquin, Argentina. Coeur's exploration teams completed a second
        phase of drilling at the La Morocha and La Negra zones at the Joaquin
        Project, under option from Mirasol Resources Ltd., located north of
        the Company's Martha mine. A total of 15 holes and 1,900 meters were
        completed in this phase. All of the second phase core holes
        encountered wide zones of silver and gold mineralization. A third
        phase of drilling is planned for Q3 at Joaquin as well as a first
        phase on Nico, a second property under option, which borders the
        Martha mine property at the north.

        Results at Joaquin in southern Argentina have been very encouraging
        this year with wide zone of silver and gold mineralization
        encountered in nearly all drill holes, and a third phase of drilling
        will commence in the next quarter at this potential stand-alone
        surface mining opportunity to establish the size of the
        mineralization and provide samples for initial metallurgical

    In the webcast Coeur commented on their upcoming exploration plans:

        "We expect this work, and follow up drilling, to lead to an increase
        in reserves at Palmarejo and Cerro Bayo, and along with results from
        a soon to commence Phase III at Joaquin, an estimate of the first
        mineral resources for that property near Martha."

    Mirasol recently reported phase 2 drilling results from the La Negra and
Morocha prospects at Joaquin on July 13 and July 23, 2009. At La Negra, best
true width intersections at a 30 g/t silver cut-off included 7.45 metres of
703.8 g/t silver and 0.13 g/t gold, and 15.96 metres of 200 g/t silver and
0.08 g/t gold both contained within a combined zone with an estimated true
width of 48.24m grading 194.4 g/t silver and 0.08 g/t gold. At La Morocha,
best true width intersections at a 30 g/t cut-off from this round of drilling
included 22.5 m of 179.4 g/t silver and 9.4 m of 501.1 g/t silver.
    A new discussion of Joaquin project results with sections and geology has
been added to Mirasol's web page:
    "Mirasol is very pleased that drilling at Joaquin has returned
encouraging silver-gold results in the recently completed second drill phase,"
stated Mary Little, President and CEO of Mirasol Resources. "Coeur plans to
commence a third phase of drilling shortly of both the La Morocha and La Negra
zones, which are open to depth and along strike to the north. We are gratified
to have a productive working relationship with Coeur and are actively
collaborating with Coeur to advance the project."

    About the Joaquin Project:
    The 100% Mirasol-owned Joaquin project contains four precious metal
prospects including the silver-rich La Morocha and La Negra zones. Joaquin is
located in the Deseado Massif volcanic province of Santa Cruz, southern
Argentina, which is host to four operating precious metal mines. Exploration
at the Joaquin project is being funded and operated by Mirasol's joint venture
partner Coeur d'Alene Mining Corporation. Coeur has the option to earn 61% of
Joaquin by investing US$ 6 million over four years, by making staged cash
payments to Mirasol and by completing a feasibility study, and up to 71% of
Joaquin by funding Mirasol's percentage of development costs, subsequently
repaid from cash flow. The Joaquin project is strategically located 80 km
north of Coeur's high grade Martha silver mine.

    Stephen C. Nano, Vice President of Exploration for Mirasol, is the
Qualified Person under NI 43-101 who has verified and approved the technical
content of Mirasol's results for this news release.

    Quality Assurance/Quality Control: Coeur d'Alene operates the Joaquin
Project and generated the drilling data and QAQC used in this news release and
reported it to Mirasol. Drill core samples were submitted to Alex Stewart
(Assayers), Argentina S.A. in Mendoza, Argentina. Gold and silver results were
determined using standard fire assay techniques on a 50 gram sample with an
atomic absorption finish for gold and a gravimetric finish for silver. Coeur's
QAQC included insertion of blanks and standards into the sample stream.
Mirasol has performed an independent analysis of the QAQC data generated by
Coeur. Stephen Nano has reviewed the Coeur data and calculated the intercepts
in this news release, and is a qualified person as defined by National
Instrument 43-101.

    All assay results reported herein are for core rock samples; assay
results from drill core samples may be higher, lower or similar to results
obtained from surface samples.

    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.

    %SEDAR: 00021558E

For further information:

For further information: Mary L. Little, President and CEO, Tel: (604)
602-9989, Fax: (604) 609-9946, Email: contact@mirasolresources.com, Website:

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