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  • Pea Ridge Mine, Washington County, Missouri, USA

    Rare earth elements (REE)−bearing breccia pipes cut through the Pea Ridge massive magnetite-iron orebody. The Pea Ridge deposit is hosted by Precambrian volcanic rocks of the St. Francois terrane of southeastern Missouri.



  • Rare Earth Processing Plant Opens in Colorado

    The facility, which is based in Wheat Ridge, Colorado, will also be involved in the recovery of non-rare earth elements with a focus on lithium, uranium, beryllium, gallium, zirconium, hafnium and aluminum, all of which are on the U.S. government's critical minerals list. Currently, China controls the vast majority of the global rare earth ...


  • Major Mines & Projects | Eco Ridge Project

    Indirect. In a June 1, 2017 announcement, Pele Mountain Resources said Eco Ridge remains "uneconomic" due to low uranium and rare earths prices. It has sold Eco Ridge's claims, surface rights and leases to an unnamed purchaser for $380,000.


  • Momentum Technologies | Department of Energy

    Momentum Technologies, located in Dallas, TX, has licensed a new method involving the recovery of rare earth elements. Momentum Technologies has partnered with DOE's Oak Ridge National Laboratory and the Critical Materials Institute, a DOE-funded Energy Innovation Hub, to commercialize this technology.Their membrane solvent extraction (MSX) process recovers rare earths using a …


  • Geochemical data supporting a comparison of apatite ...

    This data release presents high-spatial resolution geochemical analyses collected from Mesoproterozoic apatite crystals in igneous rocks from the St. Francois Mountains terrane and coeval ore rocks from the Pea Ridge iron oxide-apatite-rare earth element (IOA-REE) and Boss iron oxide-copper-gold (IOCG) deposits. These deposits are located in the southeast Missouri iron metallogenic province.


  • Rare Earth Pilot Process Development Plant to Open in US ...

    "The Wheat Ridge pilot plant is the second piece of a -U.S.-based rare earth oxide supply chain, drawing on feedstock from our Round Top heavy rare earth deposit in southwest Texas," Pini Althaus, chief executive officer of USA Rare Earth, said in the release. "Taken together, we believe Round Top and our pilot plant constitute ...





  • Mining Futures: Pea Ridge Mine

    Pea Ridge Mine, a former iron-ore mine situated in Washington County, Missouri, near the small town of Sullivan, may be coming back to life. This part of the state is rich in rare earth elements (REEs) as well as thorium, and REEs are particularly concentrated within the existing Pea Ridge Mine, making this location ideal for extraction (mindat) .


  • Missouri mine shines spotlight on global battle for rare ...

    Due to their scarcity and huge value, rare earths — and thus by extension the Pea Ridge Mine — lie at the heart of a complex geopolitical fight. It is a contest pitting China and the United States, and just about every other powerful nation on earth, into a new Great Game of diplomacy, business brinksmanship and a fight to dominate the ...


  • Rare earth element geochemistry of hydrothermal deposits ...

    Barrett T. J., Jarvis I., and Jarvis K. E. (1990) Rare earth clement geochemistry of massive sulfides-sulfates and gossans on the Southern Explorer Ridge. Geology 18, 583-586. Bence A. E. ( 1983 ) Volcanogenic massive sulfides: Rock/water in- teractions in basaltic systems and their effects on the distributions of the rare earth elements and ...


  • Rare Earth Elements - PUB2911 | Missouri Department of ...

    Principal Locations of Rare Earth Elements in Missouri Pea Ridge Iron Deposit, Washington County. Precambrian rhyolite-hosted iron-oxide deposit with REEs and minor cobalt. The deposit was mined in the past for iron. REEs are found primarily in the minerals monazite, xenotime, and apatite; other minor REE-bearing minerals are present. ...




  • Ucore aims to start construction of rare earths facility ...

    Ucore chose the Southeast town for its proximity to the Bokan Mountain-Dotson Ridge rare earth mine prospect on nearby Prince of Wales Island, which the company has held since 2007. CEO Pat Ryan said the schedule is "aggressive," but the company hopes to use revenue from the metals processing facility to support development of a small ...


  • Alaska is rich in critical rare earths - North of 60 ...

    While all rare earths possess unique characteristics that make them valuable to certain modern applications, the heavy ones tend to be less abundant and more valuable. Roughly 40 percent of the rare earths in the Dotson Ridge deposit at Bokan Mountain are in the heavy REE category.


  • First rare earths pilot plant outside China opens in ...

    USA Rare Earth and partner Texas Mineral Resources have opened a pilot plant processing facility in Wheat Ridge, Colorado, which will purify rare earths, lithium and other critical minerals with the aim of helping Washington secure domestic supply of the key ingredients for military weapons, electric vehicles and phones.


  • Rare earth element deposits containing monazite

    Rare earth element mines, deposits, and occurrences; Rare earth element deposits containing monazite. 347 deposits match. Name of deposit Deposit type State or Province ... Trail Ridge (Highland Trail Ridge, Starke Trail Ridge) Placer, shoreline: Florida: United States: Brunswick-Altamaha: Placer, shoreline: Georgia: United States:


  • Beneficiation of rare earth minerals from Bokan Mountain ...

    Rare earth element (REE) composite ore samples from the Bokan Mountain - Dotson Ridge deposit were tested using gravity concentration, magnetic separation, flotation, and leaching techniques to separate the REE. The composite ore sample was a product of a preliminary x-ray sorting process.


  • 37. RARE EARTH AND OTHER TRACE ELEMENTS IN …

    37. RARE EARTH AND OTHER TRACE ELEMENTS IN BASALTS FROM THE MID-ATLANTIC RIDGE 36°N, DSDP LEG 37 H. Puchelt, R. Emmermann, and R.K. Srivastava,' Institut für Petrographie und Geochemie, Universitat Karlsruhe, Karlsruhe, West Germany INTRODUCTION We have investigated both major and dispersed ele-ment contents of 60 samples of basalt from Leg ...


  • Pea Ridge Mine Developer: MFC Industrial Ltd., Alberici ...

    extracting rare earth metals and thorium. Known as the Pea Ridge Mine, this project would extract rare earth elements that are located in the breccia pipes that crosscut the mine. Breccia is a kind of rock that is made up of broken fragments of minerals or rock


  • My Visit to An American Rare Earth Metals Mine

    When it starts production, Pea Ridge would follow California's Mountain Pass mine, becoming only the second American producer of rare earths. Molycorp Inc. started work at Mountain Pass in ...


  • Rare earth element geochemistry of hydrothermal deposits ...

    Geochemical implications of rare earth element patterns in hydrothermal fluids from mid-ocean Ridges. Geochim Cosmochim Acta, 88: 5105–5113. Article Google Scholar Li Wenyuan. 2007. Classification, distribution and forming setting of massive sulfide deposits. Journal of Earth Sciences and Environment, 29(4): 331–344


  • Leading Supplier of Critical Materials | USA Rare Earth LLC

    With its development of the first rare earth and critical minerals processing facility in the US and ownership of the only permanent neo magnet manufacturing system in the Western Hemisphere, USA Rare Earth is poised to become the leading domestic supplier of …


  • Bokan-Dotson Ridge Project – Alaska Division of Mining ...

    The Bokan-Dotson Ridge Project is a Rare Earth Element (REE) prospect in the advanced exploration phase of development. The project is located in Kendrick Bay on the southern end of Prince of Wales Island, approximately 37 miles southwest of Ketchikan. Ucore Rare Metals, Inc. is the Project Proponent.


  • Ucore Rare Metals Inc.

    funding will be found to prepare a new National Instrument 43-101 ("NI 43-101") technical report that demonstrates that the Bokan Mountain Rare Earth Element project ("Bokan") is feasible and economically viable for the production of both REE and co-product metals at the then prevailing market prices based upon assumed customer off-



  • ECO Ridge Mine Elliot Lake – MineConnect

    Eco Ridge is located in Elliot Lake, Ontario, a proven mining camp with historic production exceeding 300-million pounds of uranium oxide and the only mining camp in Canada to have achieved commercial production of rare earth oxides. Elliot Lake has outstanding regional infrastructure including highways, railway, electricity, natural gas ...


  • Rare earth element contents and multiple mantle sources of ...

    Pleistocene basalt of the Mount Edgecumbe volcanic field (MEF) is subdivided into a plagioclase type and an olivine type. Th/La ratios of plagioclase basalt are similar to those of mid-ocean-ridge basalt (MORB), whereas those of olivine basalt are of continental affinity. Rare earth element (REE) contents of the olivine basalt, which resemble those of transitional MORB, are modelled by 10-15% ...


  • Bokan-Dotson Ridge Rare Earth Element (REE) Project ...

    Ucore Rare Metals. The Bokan-Dotson Ridge project is a rare earth element (REE) deposit planned to be developed Ucore Rare Metals at Bokan Mountain in Alaska, US. Ucore plans to complete a feasibility study for the rare and critical metals project as part of its mine, metal, and market (M3) plan by 2021. The M3 plan includes the development of ...