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Researchers find new way to locate untapped rare earths deposits worldwide – MINING.COM – MINING.com
Fayalite holds the key to locating new REEs deposits.
When inspecting rock samples from the Vergenoeg fluorite mine in South Africa, they discovered that fayalite crystals in the sediment of granite-like magma can contain large amounts of heavy rare earth elements. The mineral, which is reddish-brown to black in colour, is mainly mined for use as a gemstone and is also used for sandblasting. Fayalite can be found worldwide in igneous rock and abyssal rocks.
Fayalite crystals in the sediment of granite-like magma can contain large amounts of heavy rare…
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