Betafite

Rarity: Common

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Notion

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Science and technology

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What Wikipedia says

Betafite is a mineral group in the pyrochlore supergroup, with the chemical formula (Ca,U)2(Ti,Nb,Ta)2O6(OH). Betafite typically occurs as a primary mineral in granite pegmatites, rarely in carbonatites.

Excerpt from the Wikipedia article “Betafite”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Alchemist-hp (talk) (www.pse-mendelejew.de), FAL, via Wikimedia Commons.