Geomechanics.io

  • Free Tools
Sign UpLog In

Geomechanics.io

Geomechanics, Streamlined.

© 2026 Geomechanics.io. All rights reserved.

Geomechanics.io

CMRR-ioGEODB-ioHYDROGEO-ioQCDB-ioFree Tools & CalculatorsBlogLatest Industry News

Industries

MiningConstructionTunnelling

Company

Terms of UsePrivacy PolicyLinkedIn
    Projects
    Sustainability

    US rare earth strategy and Rainbow’s Phalaborwa: cost and metallurgy lens for engineers

    August 1, 2026|

    Reviewed by Joe Ashwell

    US rare earth strategy and Rainbow’s Phalaborwa: cost and metallurgy lens for engineers

    First reported on MINING.com

    30 Second Briefing

    US backing for Rainbow Rare Earths’ Phalaborwa project in South Africa signals a shift from tonnage-led to metallurgy-led rare earth strategy, with $50 million of US equity supporting recovery of Nd and Pr from a 35‑million‑tonne phosphogypsum stack. The project leverages prior mining and fertiliser processing, negligible Thorium/Uranium in the feed, and a proprietary cerium‑depletion step removing about 65% of low‑value Ce to target operating costs below US$30/kg Nd+Pr. Coupled with a US$500 million US‑Africa Strategic Investment Program, this points to supply‑chain resilience built on cost‑competitive, international partnerships rather than purely domestic deposits.

    Technical Brief

    • Phalaborwa’s 35 Mt phosphogypsum stack is an above-ground “artificial orebody”, avoiding new pit development and primary crushing.
    • Historic fertiliser operations already completed ore extraction, comminution and phosphoric acid leaching, shifting capex focus almost entirely to REE recovery circuits.
    • Rainbow Rare Earths’ flowsheet targets early cerium rejection via a proprietary depletion step, decoupling economics from natural La–Ce dominance.
    • Negligible thorium and uranium in the phosphogypsum sidestep NORM handling, tailings licensing and long-term radiological stewardship typical of many REE projects.
    • Ionic adsorption clays are cited as benchmarks because weakly bound REEs enable low-temperature leaching without roasting, cutting energy intensity versus hard-rock carbonatites.

    Our Take

    Rainbow Rare Earths also appears in our coverage via TechMet’s planned $200 million raise for a broader critical minerals portfolio, signalling that Phalaborwa is being positioned within a multi-asset, multi-jurisdictional supply chain rather than as a standalone bet on South Africa.

    With Washington’s $50 million equity into Phalaborwa sitting alongside a $500 million US-Africa Strategic Investment Program envelope, the US is effectively using South African rare earths to complement emerging domestic plays like Rare Earths Americas’ Shiloh/Foothills district, diversifying away from a single-country supply strategy.

    Geotechnical Software for Modern Teams

    Centralise site data, logs, and lab results with GEODB-io, CMRR-io, and HYDROGEO-io.

    No credit card required.

    • Save and export unlimited calculations
    • Advanced data visualisation
    • Generate professional PDF reports
    • Cloud storage for all your projects

    Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.

    Related Articles

    Hercules hires Hudbay deal team: Leviathan copper project lens for engineers
    Mining
    about 2 hours ago

    Hercules hires Hudbay deal team: Leviathan copper project lens for engineers

    Hercules Metals has hired former Arizona Sonoran Copper CEO George Ogilvie and six ex-colleagues who led the Cactus project to a US$1.4 billion sale to Hudbay, tasking them with advancing the Leviathan porphyry copper discovery in Idaho. Leviathan’s system has been drilled over more than 1 km strike, up to 750 m width and 500 m vertical extent, with discovery hole HER-23-05 returning 185 m at 0.84% Cu including 45 m at 1.94% Cu, beneath an epithermal silver system. Barrick-backed Hercules controls 404.7 sq. km along a 73-km copper belt with surface mining rights, road access and three 260 kV transmission lines crossing the property, but no resource or economic study yet, giving the new team a blank technical slate.

    Equinox appoints Orla’s Simpson as CEO: capex and integration lens for mine planners
    Mining
    about 2 hours ago

    Equinox appoints Orla’s Simpson as CEO: capex and integration lens for mine planners

    Equinox Gold will install Orla Mining’s Jason Simpson as CEO on 1 November, accelerating a leadership change just days after closing their C$25.4 billion all-share merger to form a six-mine producer targeting 1.1 million oz. of gold per year. The enlarged portfolio includes Greenstone, Valentine and Musselwhite in Canada, forecast to deliver 685,000 oz. annually, with further growth tied to South Railroad, Castle Mountain, Los Filos and an underground build at Camino Rojo. Simpson must quickly prioritise capex and integration as Greenstone and Valentine ramp up and Equinox prepares consolidated guidance.

    Mining
    about 2 hours ago

    AECI Mining in Namibia: water stewardship design notes for mine planners

    Namibia’s expanding uranium, gold and copper sector is drawing new investment, and AECI Mining argues that project success will hinge on how efficiently operations manage scarce water and other natural resources. The company promotes integrated blasting, reagent and water-treatment packages tailored to arid conditions, linking emulsion explosives, process chemicals and closed-loop water circuits to cut freshwater intake and improve plant stability. For mine planners and process engineers, the message is to embed water stewardship into early pit design, tailings strategies and plant selection rather than bolt-on compliance later.

    Related Industries & Products

    Mining

    Geotechnical software solutions for mining operations including CMRR analysis, hydrogeological testing, and data management.

    CMRR-io

    Streamline coal mine roof stability assessments with our cloud-based CMRR software featuring automated calculations, multi-scenario analysis, and collaborative workflows.

    HYDROGEO-io

    Comprehensive hydrogeological testing platform for managing, analysing, and reporting on packer tests, lugeon values, and hydraulic conductivity assessments.

    GEODB-io

    Centralised geotechnical data management solution for storing, accessing, and analysing all your site investigation and material testing data.

    AllGeotechnicalMiningInfrastructureMaterialsHazardsEnvironmentalSoftwarePolicy