EDITOR: | May 19th, 2015 | 7 Comments

Dark Monazite at U.S. Rare Earth’s Lemhi Pass confirmed by U.S. Geological Survey

| May 19, 2015 | 7 Comments

US-Rare-Earths-200x125May 19, 2015 (Source: PR Newswire) — U.S. Rare Earths, Inc. (OTCQB: UREE), a domestic rare earths exploration company, has demonstrated that the Dark Monazite (a unique Neodymium and Europium-rich mineral) at its Last Chance Mine has lower potential processing costs as a result of mineralogical studies and metallurgical testing completed on its stockpile material, the company announced.

The Last Chance Mine is located in the Lemhi Pass Area of Idaho and Montana, and it contains one of the longest identified mineralized veins in the region.  The Lemhi Pass area has been identified as having over 200 mineralized veins. The company holds 140 claims in the Lemhi Pass area which cover a significant number of these historically known mineralized veins.

The United States Geological Survey (USGS) has identified the presence of Dark Monazite at the Last Chance Mine. This unique mineralization, enriched in the mid-rare earth elements (particularly Europium) provides multiple avenues for continued process innovation, with the potential for a very significant reduction in acid consumption compared to other deposits’ processing methods, the company said. Acid leaching in Rare Earth processing typically adds a significant contribution to the operating costs.

Lucky Horseshoe

One of the company’s claims holds the Lucky Horseshoe deposit which is part of the Lemhi Pass mineral trend and has been extensively studied in efforts led by Dr. Virginia Gillerman’s Idaho Geological Survey’s (IGS) team. Dr. Gillerman considers the Lucky Horseshoe and Last Chance veins to be part of the Lemhi Pass trend of mineralization, which typically has very high neodymium and europium concentrations.  These are two of the highest-value rare earth elements.

Dr. Gillerman comments, “The entire Lemhi Pass district is enriched in mid-rare earth elements, and our team successfully used lab-scale standard crushing, gravity separation, and stepwise magnetic separation to provide a monazite fraction for detailed scanning electron microscope and microprobe analysis.”

Both Hazen Research and IGS teams were able to effectively separate the enriched monazite from the gangue minerals with methods appropriate for scaled-up evaluation. The percentage of mid-rare earths in the monazite is significantly enriched up to 35% (by weight) of neodymium oxide and 5% (by weight) of europium oxide,  levels not previously known to be found anywhere else in the world.

During the last two years, the company has pursued advanced exploration of the Last Chance Mine project, where, to date, over two short tons of material have already been removed from the mine-stockpile and sampled for  metallurgical tests.

Kevin Cassidy, CEO of US Rare Earths, commented, “The metallurgical tests proving the Dark Monazite component of the mineralisation have come back with results far beyond our expectations. This met work is the key preliminary development work to move the Last Chance Project towards a low-cost, proven and feasible project. These works, moreover, provide a viable road map for continued improvements in beneficiation in follow-up and advanced work.”

Metallurgical Testing 

In summary the work to date indicates that the main high-value rare earth minerals are Dark Monazite, enriched in Neodymium, Europium, and Xenotime (an Yttrium Phosphate mineral).

Moreover, early liberation and magnetic separation tests indicate that the cost of grinding the mineral will be lower than expected, because less than 0.1% of Total Rare Earths (TREE) plus Yttrium stays in fractions larger than +14 mesh, allowing for the possibility of a considerable reduction in material grinding for beneficiation. Grinding is typically one of the major contributors to processing cost.

The initial results of magnetic separation work potentially allows the company to process only 38% of the bulk weight, with approximately double the “as-mined” rare earth concentration. Recoveries were in excess of 92%.

The recovery rate of the following assayed rare earths, based on feed to testing, was Lanthanum 94.1%, Cerium 94.1%, Neodymium 93.8%, Praseodymium 93.8%, Samarium 88.2%, Europium 92.8%, Gadolinium 91.6% and Yttrium 93.1% in 38% of the feed. The heavy rare earth fractions were not assayed at Hazen Research during these initial test sequences. The company anticipates that further metallurgical testing can improve on these results significantly.

The company believes downstream leaching acid consumption and processing costs will be greatly reduced from this result.

Multiple leaching tests were conducted independently by Hazen Research and SGS Mineral Services Canada on non-magnetically concentrated bulk sample material. Rare Earth extraction yielded recoveries of 79-78% for the light to heavy rare earth fractions and demonstrated the technical feasibility of higher recoveries. Continued optimized testing is anticipated by the company to improve these recoveries and future leaching tests will benefit from using the magnetic concentrates developed at Hazen Research.

Forestry Permit

In further developments, the company has received a US Forestry Service metallurgical sampling mining permit for the Last Chance Mine which will allow accelerated project development in the beneficiation and separation of the rare earths.

About U.S. Rare Earths, Inc.

U.S. Rare Earths, Inc. is a U.S. based domestic mineral exploration, mining and claims-acquisition company based in Plano, TX. The Company holds approximately 22,000 acres of mining claims for rare-earth elements in Colorado, and in the Lemhi Pass Region of Idaho and Montana. The company is in the exploration stage and does not have any reportable reserves.

Rare earth elements are critical to many existing and emerging 21st century applications including clean-energy technologies such as wind turbines, hybrid cars and electric vehicles; high-technology applications including cell phones and digital music players; hard disk drives used in computers; microphones; fiber optics; lasers; and in addition, critical defense applications such as global positioning systems, radar and sonar; and advanced water treatment applications, including those for industrial, military, homeland security, domestic and foreign aid use.

IGS is administrated through the University of Idaho, Moscow Idaho.

For more information visit:  www.usrareearths.com

Safe Harbor Statement:

Some statements contained in this news release are forward-looking statements, and, therefore, involve uncertainties or risks that could cause actual results to differ materially. These statements may contain words such as “desires,” “believes,” “anticipates,” “plans,” “expects,” “intends,” “estimates” or similar expressions. These statements are not guarantees of the Company’s future performance and are subject to risks, uncertainties and other important factors that could cause its actual performance or achievements to differ materially from those expressed or implied by these forward-looking statements. Such statements include, but are not limited to, rare-earth industry risks, estimates of mineralized materials, litigation risks, plans to raise capital, and board, management and governance risks. Additional information regarding factors that could cause results to differ materially from management’s expectations is found in the Company’s SEC filings. The Company intends that the forward-looking statements contained herein be subject to the above-mentioned statutory safe harbors. Investors are cautioned not to rely on forward-looking statements. The Company undertakes no obligation to revise or update publicly any forward-looking statements for any reason.


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  • Aat Oskam

    QUOTES from Q1 2015 (http://files.shareholder.com/downloads/AMDA-29CJ2H/197909564x0xS1354488-15-2395/1098881/filing.pdf):
    “At March 31, 2015, the Company had cash of $5,170 and a working capital deficit of $3,562,600.” and
    “The Company’s auditors have expressed doubt about its ability to continue as a going concern as a result of the Company’s history of net losses. The Company’s ability to achieve and maintain profitability and positive cash flow is dependent upon its ability to successfully execute the above plans. The outcome of these matters cannot be predicted at this time. These condensed consolidated financial statements do not include any adjustments to the amounts and classifications of assets and liabilities that might be necessary should the Company be unable to continue its business.” UNQUOTE
    I just do not understand why the US government does not support USRE?

    May 19, 2015 - 1:01 PM

  • Aat Oskam

    Your tax money is spent in China now, happy?

    May 19, 2015 - 4:34 PM

  • JJBeswick

    Aat Oskam nailed it. The company has $5000 in cash reserves and a heap of obligations. They are broke. IMO the resource doesn’t warrant interest from 3rd parties.

    May 20, 2015 - 12:17 PM

  • charles.1

    I havent checked the website, but I don’t believe there is a resource under any recognized system.

    May 21, 2015 - 2:02 AM

  • Fred

    Resource or not, they carted away previously mined ore from a notable mine in a high profile mining district. That won’t necessarily make current stockholders rich, but there’s a fair chance that it will turn into a real mine again some day.

    May 21, 2015 - 2:38 AM

  • Fred

    These are the leftovers from a formerly functioning mine. It needs only average luck and a few bags of money to get it open again. But it needs big bags of money for a processing plant. And UREE is cash poor.

    It may not be quantified to modern tastes, but the whole area has been heavily prospected for many decades. To some extent this is a land grab by UREE, hoping that some mining company at some point won’t be able to resist buying them. Maybe if MCP some day becomes rich.

    May 22, 2015 - 12:19 AM

  • Fred

    Missing a loan payment is bad, but it comes down to whether or not the financial community has faith in the viability of the company. The debt could be re-structured, turned into stock, or interest payments formally postponed. If it’s a matter of selling the company itself or its assets, I would think the bondholders would let the company formally fail. It’s a real poker game. In MCP’s favor is that it can hire talent to play the cards for them.

    June 1, 2015 - 12:59 AM

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