RareX

Metallurgical Testwork Delivers Premium Phosphate Concentrate From Cummins Range

Results highlight potential to produce a valuable co-product, used in phosphate fertilisers

RareX Limited (RareX, the Company) (ASX: REE) is pleased to report positive outcomes from a testwork program conducted on samples from its 100%-owned Cummins Range Rare Earths Project (the Project, Cummins Range), located in the Kimberley region of WA.

HIGHLIGHTS

  • Preliminary metallurgical testwork exceeds expectations for the production of a phosphate mineral concentrate as a potential co-product from Cummins Range.
  • Outstanding results achieved, with greater than 39% P2O5 phosphate mineral concentrates produced with excellent recovery.
  • Conventional phosphate flotation circuits tested, supporting a simple and proven beneficiation flowsheet for phosphate mineral recovery.
  • Conventional phosphate flotation circuits tested, supporting a simple and proven beneficiation flowsheet for phosphate mineral recovery.

The testwork was led by RareX with support from other consultancies, with results confirming the potential to produce a premium-grade phosphate concentrate of >39% P2O5 (well above the benchmark grade of 32% P2O5 used in phosphate fertiliser production) using a simple, proven beneficiation technique.

RareX Managing Director, Jeremy Robinson, said: “This testwork supports the opportunity to produce a premium and highly-valuable phosphate co-product at Cummins Range as part of our rare earths business, with the potential to help drive very low cash operating costs as demonstrated in the recently released Scoping Study.”

INTRODUCTION

The Cummins Range Rare Earths Project is a globally significant rare earths project located in the Kimberley region of Western Australia near the township of Halls Creek. The Project has a JORC Indicated and Inferred 2012 Mineral Resource Estimate (cut-off grade 0.5% TREO) containing 18.8 million tonnes of 1.15% TREO and 10% P2O5 with a high neodymium and praseodymium (NdPr) to TREO ratio of 20%1.

The primary rare earth mineral is monazite hosted in the weathered portion of the underlying carbonatite intrusion with the deposit outcropping in multiple locations. Recent exploration activities have discovered high-grade phosphate mineralisation in the northern zone.

Phosphate minerals (primarily apatite) have been identified in both the rare earth zone and phosphate zone within the Cummins Range deposit. The phosphate material is found to be hosted in carbonatite and is believed to be premium grade compared to typical sedimentary deposits, offering outstanding potential to produce a phosphate mineral concentrate of >31% P2O5 with simple beneficiation. Phosphate concentrate is a key input for phosphorus fertiliser production and has the potential to significantly enhance the overall project economics as a valuable co-product.

PHOSPHATE SIGHTER FLOAT PROGRAM

To investigate the potential of phosphate minerals recovery, a sighter flotation program was undertaken at Auralia Metallurgy in Perth.

The primary goal of this metallurgical testing program was to demonstrate that a high grade, commercially viable phosphate mineral concentrate could be produced using a simple flotation process.

Flotation Results

The sighter testwork program was centred on the production of a phosphate mineral concentrate, with testwork undertaken on two composite samples collected from the Cummins Range Project, namely:

1.CDX0015 Phosphate Zone Fresh Composite
2.CDX0015 Phosphate Zone Regolith Composite

Both composite samples were subjected to a flotation test with the same circuit configuration, i.e., 3-stage rougher flotation followed by 2-stage cleaner flotation. A summary of the flotation testwork results are shown in Table 2.


Click here for the full ASX Release

This article includes content from RareX, licensed for the purpose of publishing on Investing News Australia. This article does not constitute financial product advice. It is your responsibility to perform proper due diligence before acting upon any information provided here. Please refer to our full disclaimer here.

REE:AU
The Conversation (0)
CuFe Ltd

Tennant Creek Technical Review to Drive Copper Exploration Program

CuFe Ltd (ASX: CUF) (CuFe or the Company) is pleased to provide an update on the status of CuFe’s Tennant Creek Cu-Au project, which is owned 55% by CuFe and 45% by Gecko Mining Company Pty Ltd. The project has an existing JORC 2012 resource of 7.3MT at 1.7% Copper and 0.6g/t Gold (refer to CuFe’s ASX release dated 3 April 2023).

Keep reading...Show less
Brazil on map.

Resouro Publishes Initial Resource for Tiros Titanium-Rare Earths Project in Brazil

Resouro Strategic Metals (ASX:RAU,TSXV:RSM) published the results of a maiden JORC-compliant mineral resource estimate for the central block of its Tiros titanium and rare earths project on Wednesday (July 17).

Tiros is located in Brazil's Minas Gerais state, a leading iron ore, rare earths and phosphate jurisdiction. Its licence area covers roughly 450 square kilometres, including the most prospective portion of the Capacete Formation.

The resource estimate stands at 1.7 billion tonnes, divided into 1 billion tonnes in the measured and indicated category, and 0.7 billion tonnes in the inferred category. It contains 3,900 parts per million (ppm) total rare earth oxides (TREO), 1,100 ppm magnet rare earth oxides (MREO) and 12 percent titanium dioxide (TiO2).

Keep reading...Show less
CuFe Ltd

CuFe Acquires West Arunta Tenure with Exciting Geophysical Targets

CuFe Ltd (ASX: CUF) (CuFe or the Company) is pleased to provide an update on the status of its West Arunta tenure.

Keep reading...Show less
CuFe Ltd

High Grade Iron Rock Chip Results at Robinson Range – Bryah Basin

CuFe Ltd (ASX: CUF) (CuFe or the Company) is pleased to provide an update on its exploration activities within E52/1613, part of the Bryah Basin Project portfolio.

Keep reading...Show less
  Pearl Gull Iron Limited

Investor Presentation - Proposed Earn-in to NeoRe SpA

Overview of the La Marigen Ionic Rare Earth Project Located in the coastal belt of central Chile

Pearl Gull Iron Limited (ASX: PLG) (Pearl Gull, PLG or the Company) is pleased to present its investor presentation.

Keep reading...Show less
  Pearl Gull Iron Limited

Pearl Gull to Farm-in to Potential Ionic Clay Rare Earth Project

Pearl Gull is pleased to advise that it has entered into a binding term sheet to acquire 100% of the fully paid ordinary shares in Huemul which in turn has signed an agreement and is negotiating a further agreement for it to have a right to earn up to 80% of the equity in a privately held Chilean-company, NeoRe SpA (NeoRe).

Highlights:

Keep reading...Show less

Latest Press Releases

Related News

×