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Fluorite, or fluorspar, plays a critical role in semiconductor manufacturing and lithium-ion battery production, while baryte is indispensable in oil and gas drilling, where it is used to stabilise wells and prevent blowouts.—Bojan Stojkovski, Interesting Engineering, 21 Mar. 2026 The Nazis’ chemical industry had found a substitute for cryolite using fluorspar, but the U.S. preferred the more resource-efficient cryolite and wanted to prevent the Germans from having it.—Thomas Robertson, The Conversation, 17 Feb. 2026 Some, such as aluminum, lithium, and cobalt, are better known (and easier to pronounce) than others: dysprosium, fluorspar, ruthenium, ytterbium.—E. Tammy Kim, The New Yorker, 25 Mar. 2025