Latest Rubidium News

Delta Lithium reveals a significant new fluorite discovery with assays exceeding 86% CaF2 at Yinnetharra, alongside ongoing high-grade lithium drilling and metallurgical progress at Mt Ida.

Askari Metals (ASX:AS2) has validated continuous polymetallic mineralisation including tin, lithium, tantalum, rubidium, and caesium at its PS Pegmatite Target within the Uis Project in Namibia, setting the stage for planned drilling in H2 2026.

Solis Minerals has deployed its Brazilian exploration team to advance drilling preparations at the Mandacaru and Campo Grande lithium prospects, leveraging extensive Rio Tinto data and aiming for initial diamond drilling in June 2026.

IRIS Metals has completed acquisition of 87 federal mining claims in South Dakota but will not proceed with the private land component of the Ingersoll Project due to unforeseen issues. The company is reassessing options while maintaining its broader critical minerals strategy.

Coppermoly Limited has expanded its critical minerals footprint with the full acquisition of the Wyemandoo Project in Western Australia, while deferring Queensland geophysical surveys due to resource availability. The new project offers exposure to high-grade tungsten, rubidium, titanium, and tantalum, aligning with soaring global demand and prices.

Perpetual Resources has launched a detailed trenching campaign at its Igrejinha Lithium and Caesium Project in Brazil, aiming to refine multiple pegmatite targets ahead of a mid-year drilling push. Concurrent exploration planning is progressing at the Renaldinho Project, reinforcing the company’s foothold in Brazil’s Lithium Valley.

IRIS Metals has revealed a 3.03Mt lithium resource at its fully permitted Beecher Project in South Dakota, featuring a notable rubidium component with a high-grade zone containing around 2,100 tonnes of Rb2O. This positions Beecher as a rare multi-commodity critical minerals asset in a top US mining jurisdiction.

Elementos Limited has made significant strides in developing its tin and tungsten assets, with progress on Oropesa’s permitting and a major resource upgrade at Cleveland. A $29.5 million strategic placement bolsters its balance sheet for upcoming milestones.

Askari Metals has completed data compilation at its Nejo Gold and Copper Project, setting the stage for a 5,000m maiden drilling campaign targeting high-grade gold and copper. Meanwhile, trenching at its Uis Project in Namibia reveals robust polymetallic mineralisation, including tin, tantalum, lithium, rubidium, and caesium, underpinning plans for RC drilling later this year.

Delta Lithium’s March quarter report highlights robust high-grade lithium drilling at Mt Ida, successful production of battery-grade lithium and rubidium carbonates, and ongoing exploration progress at Yinnetharra, supported by a strong $52 million cash position.

Great Dirt Resources bolstered its leadership with key industry veterans, secured $1.446 million in funding, and reported promising lithium anomalies at its Pilbara Project, all while renewing its NSW manganese exploration licence.

IRIS Metals has fortified its balance sheet with a A$5.5 million placement and is progressing towards an updated lithium-rubidium resource at Beecher while executing a farm-in deal for a tungsten project in Montana, reinforcing its diversified US critical minerals strategy.