Aurizon Mines Ltd.

Aurizon Mines Ltd.

November 08, 2007 09:02 ET

Aurizon Reports Rare Earth and Uranium Discoveries at Kipawa Gold-Uranium Project

VANCOUVER, BRITISH COLUMBIA--(Marketwire - Nov. 8, 2007) - Aurizon Mines Ltd. (TSX:ARZ)(AMEX:AZK) is pleased to report results from its 2007 surface exploration program, at its 100 percent owned Kipawa Gold-Uranium project, north-western Quebec, Canada.

The Kipawa area is located approximately 100 kilometres south of Rouyn-Noranda, along the provincial border, and is accessible via logging roads. The project covers a strike length of 75 kilometres, halfway between the Elliot Lake uranium camp and the Abitibi gold belt camp, within the Grenville Front, surrounding the alkaline Kipawa complex.

Extensive field prospecting was conducted during this summer, as a follow up to the 2006 till sampling results, which returned grades of up to 100 grams of gold per tonne, (see Aurizon's news release dated February 26, 2007).

- Induced Polarization surveys and systematic till sampling of outcrops surrounding the gold dispersion trains, were conducted during the summer, 2007. There were 260 additional till samples taken within an area of 660 square kilometres. Assays are pending and should be released by year end.

- Uranium, rare earth element minerals and gold clustered anomalies associated with airborne radiometric anomalies, were discovered within two main areas referred to as Snake and Eagle. The best results are as follows:

Light Rare Heavy Rare
Area (Sample) U3O8 Yttrium Earth Element Earth Element
Snake (63884) 0.20% 0.67% 0.09% 0.30%
Eagle (63590) - 0.32% 5.34% 0.4%

"Rare earth and uranium discoveries, associated with the gold potential at Kipawa, open up new exploration opportunities for Aurizon, considering that these elements could provide the new solution to future global energy and environmental challenges," said Martin Demers, Exploration Manager.


A preliminary ground radiometric survey, using a SAIC GR-135 gamma-ray spectrometer, was performed over a 350 square kilometre area along existing road access, where anomalies were identified by airborne radiometric surveys.

More than six hundred (600) measurements were taken and seven areas returned continuous readings averaging between 611 to 24,060 counts per minute on the Snake area.

Uranophane, an alteration uranium bearing mineral, was observed on the outcrop returning the best radiometric anomalies. Three hundred and fifty (350) samples were taken, of which assays from 310 samples have been received to date. The best assays from the grab samples returned a value of 0.20% U3O8.

Radiometric survey Prospecting
Samples Counts per minute Samples % U3O8
Taken Minimum Maximum Taken Best assays
Snake 17 1,394 24,060 23 0.14, 0.20
Eagle 16 615 1,321 - -

The main uranium anomalies were located within a metasedimentary belt intruded by alkaline intrusions and were not associated with pegmatite dykes. All of the area is affected by a large flat dipping shear zone delineating a major contact between two geological provinces of Proterozoic and Archean age. The main area also seems to be closely associated with later brittle northwest trending structural fractures.

More specifically, each anomaly was located along a multi-metres wide straight layered paragneiss, where favourable reducing agents such as magnetite, amphibole, molybdenite, biotite, pyrite concentrations associated with and without graphite, are present. At this stage the dimension of the favourable horizons remains unknown.

The best uranium assays are associated with thorium values which are above the laboratory's detection limit and will be reanalyzed. Considering the potentially negative impact of thorium on future metallurgical recoveries of uranium, a mineralogical study including microprobe analysis will be undertaken to characterize the ore-bearing minerals.

Rare Earth Elements

Following the radiometric survey, prospecting found rare earth elements mineralization associated with the oxide rich layers. The rare earth elements typically occur in an alkaline intrusive context, such as the Kipawa complex.

Light Rare Earth (%)(1)
La Ce Pr Nd Total
63590 1.5 2.6 0.3 1.0 5.3
63884 0.02 0.04 - 0.02 0.08
63851 0.01 0.03 - 0.01 0.06

Heavy Rare Earth (%)(2)
Pm(3) Sm Eu Gd Tb Dy Ho Er Tm Yb Lu Total
63590 n.a. 0.14 0.01 0.09 0.01 0.07 0.03 0.03 - 0.03 - 0.4%
63884 n.a. - - 0.01 - 0.07 0.02 0.08 0.01 0.08 0.01 0.3%
63851 n.a. - - - - 0.05 0.01 0.06 0.01 0.06 - 0.2%

(1) Light rare earth elements include lanthanium (La), cerium (Ce),
praseodymium (Pr) and neodymium (Nd).
(2) Heavy rare earth elements include promethium (Pm), samarium (Sm),
europium (Eu), gadolinium (Gd), terbium (Tb), dysprosium (Dy),
holmium (Ho), erbium (Er), thulium (Tm), ytterbium (Yb) and
lutetium (Lu).
(3) Promethiums have not been assayed.

Rare earth element anomalies are also associated with gallium, zirconium, and yttrium.

The principal uses of rare earth elements are:

- Petroleum fluid cracking catalysts

- Metallurgical applications

- Glass polishing compounds

- Glass additives

- Permanent magnets

- Catalytic converter materials

- Television, lighting, and X-ray intensifying phosphors

- The diverse nuclear, metallurgical, chemical, catalytic, electrical, magnetic, and optical properties of the rare earth elements have led to an ever increasing variety of applications. These uses range from mundane (lighter flints, glass polishing) to high-tech (phosphors, lasers, magnets, batteries, magnetic refrigeration) to futuristic (high-temperature superconductivity, safe storage and transport of hydrogen for a post-hydrocarbon economy).

Light rare earth elements are used in the energy and high technology industries as metal or oxide. Generally, assays for these elements average below 2%. One sample, taken from Kipawa, returned assays over 2%.

Heavy rare earth elements are used in high-technology and scientific research industries, as composite material. Generally, assays for these elements average below 0.02%. Fourteen (14) samples of the forty two samples (42) taken from Kipawa, returned assays above 0.02%.

Preliminary assays and the mineralogical context suggest a favourable rare earth element discovery within the Kipawa complex.


In 2008, Aurizon intends to aggressively resume its exploration effort in the area, with gold, uranium and rare earth elements as primary targets. Trenching and drilling will be performed as soon as the appropriate permits and approvals are obtained.

A progress report on Aurizon's 2007 gold exploration activities at Kipawa will be released shortly.

Aurizon has continuously worked in close collaboration with the First Nation communities of Eagle Village and Wolf Lake over the last two years.

Qualified Person and Quality Control

Assays were performed on grab samples, averaging two kilograms. Determination of uranium and Rare Earth Elements were conducted with lithium metaborate fusion while gold assays were performed with standard fire assay. Both were followed by standard ion couple plasma mass spectrometry assays, Certified reference materials and blanks are inserted in the sample sequence for quality control. Assay checking on the pulp and reject samples are carried out systematically. Exploration primary assaying is performed at ALS Chemex, located in Val-d'Or, Quebec.

Rare earth elements above the detection limit were sent to INRS-ETE laboratory, located in Quebec City. Assays were performed with alkaline fusion followed by standard ion couple plasma mass spectrometry assays. Certified reference materials and blanks are inserted in the sample sequence for quality control.

Information of a scientific or technical nature in this news release, work, sampling, implementation and the quality control program has been prepared by or under the supervision of Martin Demers, P.Geol., Exploration Manager, qualified person as defined by National Instrument 43-101.

Additional Information

One sketch and two tables are attached showing the relevant area of the Kipawa Project and results. All other information previously released on the Kipawa Project is also available on the Aurizon website.

To view sketch and tables please click on the following link:

About Aurizon

Aurizon is a gold producer with a growth strategy focused on developing its existing projects in the Abitibi region of north-western Quebec, one of the world's most prolific gold and base metal regions, and by increasing its asset base through accretive transactions. Aurizon shares trade on the Toronto Stock Exchange under the symbol "ARZ" and on the American Stock Exchange under the symbol "AZK". Additional information on Aurizon and its properties is available on Aurizon's website at


This News Release contains "forward-looking statements". These forward-looking statements include, but are not limited to, statements regarding the Company's strategic plans, mine life, future production, and work programs. Forward-looking statements express, as at the date of this News Release, the Company's plans, estimates, forecasts, projections, expectations, or beliefs as to future events or results and the Company does not intend, and does not assume any obligation to update these forward-looking statements. In certain cases, forward-looking statements can be identified by the use of words such as "plans", "expects" or "does not expect", "is expected", "budget", "scheduled", "estimates", "intends", "anticipates" or "does not anticipate", "believes", or variations of such words and phrases or statements that certain actions, events or results "may", "could", "would", "might" or "will be taken", "occur" or "be achieved". We caution that forward-looking statements involve a number of risks and uncertainties, and there can be no assurance that such statements will prove to be accurate. Therefore, actual results and future events could differ materially from those anticipated in such statements. Factors that could cause results or events to differ materially from current expectations expressed or implied by the forward-looking statements, include, but are not limited to conclusions of economic evaluations; changes in project parametres as plans continue to be refined; future prices of gold; possible variations in ore reserves, grade or recovery rates; failure of plant, equipment or processes to operate as anticipated; accidents, labour disputes and other risks of the mining industry; or in the delays in the completion of development or construction activities, environmental risks and hazards, risks of delays in construction and other risks more fully described in Aurizon's Annual Information Form filed with the Securities Commissions of the provinces of British Columbia, Alberta, Manitoba, Ontario and Quebec, and in Aurizon's Annual Report on Form 40-F filed with the United States Securities and Exchange Commission. These documents are available on Sedar at and on Edgar at


As a British Columbia corporation, the Company is subject to certain rules and regulations issued by the British Columbia Securities Commission ("BC Securities Commission"). The Company is required to provide detailed information regarding its properties including mineralization, drilling, sampling and analysis, security of samples and mineral resource and mineral reserve estimates. Further, the Company describes mineral resources associated with its properties utilizing terminology such as "indicated" or "inferred" which terms are recognized by Canadian regulations but are not recognized by the United States Securities and Exchange Commission ("SEC").

Cautionary Note to U.S. Investors Regarding Mineral Resources

The SEC allows mining companies, in their filings with the SEC, to disclose only those mineral deposits they can economically and legally extract or produce. The Company may use certain terms in this document, such as "mineral resources", "indicated mineral resources" and "inferred resources" that are recognized and mandated by Canadian securities regulators but are not recognized by the SEC.

This News Release may use the term "indicated" resources. U.S. readers are cautioned that while that term is recognized and required by Canadian regulations, the SEC does not recognize it. U.S. investors are cautioned not to assume that any part or all of mineral deposits in this category will ever be converted into mineral reserves.

This News Release may also use the term "inferred" resources. U.S. readers are cautioned that while this term is recognized and required by Canadian regulations, the SEC does not recognize it. "Inferred resources" have a great amount of uncertainty as to their existence, and great uncertainty as to their economic and legal feasibility. It cannot be assumed that all or any part of an Inferred Mineral Resource will ever be upgraded to a higher category. Under Canadian rules, estimates of Inferred Mineral Resources may not form the basis of feasibility or pre-feasibility studies, except in rare cases. U.S. investors are cautioned not to assume that part or all of an inferred resource exists, or is economically or legally mineable.

U.S. Registration: (File #0-22672)

Contact Information

  • Aurizon Mines Ltd.
    David Hall
    (604) 687-6600 or Toll Free: 1-888-411-GOLD
    (604) 687-3932 (FAX)
    Aurizon Mines Ltd.
    Michel Gilbert
    Vice President
    (819) 874-4511
    (819) 874-3391 (FAX)