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The latest announcement is out from Iris Metals Limited ( (AU:IR1) ).
Iris Metals has reported an updated JORC-compliant mineral resource of 3.03 million tonnes at 1.00% Li2O and 0.116% Rb2O at its fully permitted Beecher Project in South Dakota, confirming a lithium deposit with a significant rubidium component. The resource spans three pegmatite deposits interpreted as suitable for open pit and underground mining, and positions Beecher as one of the first U.S. projects to formally quantify rubidium as a potential by-product.
The company highlights Beecher as a multi-commodity critical minerals asset in a tier-one U.S. jurisdiction, with metallurgical tests showing lithium recoveries of up to 80% using conventional DMS and flotation to produce SC6 spodumene concentrate. Ongoing test work is assessing rubidium recovery pathways and third-party evaluations of material, underscoring potential additional value and strategic exposure to a critical mineral not yet factored into economic assumptions.
More about Iris Metals Limited
Iris Metals Limited is an ASX-listed exploration and development company focused on critical minerals, notably lithium, in the United States. Through its wholly owned subsidiary White Rock LLC, the company holds interests in the Beecher Project in South Dakota, targeting spodumene-bearing pegmatites to supply secure domestic battery mineral sources.
Average Trading Volume: 416,366
Technical Sentiment Signal: Sell
Current Market Cap: A$20.12M
See more data about IR1 stock on TipRanks’ Stock Analysis page.