Uranophane

Rarity: Common

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Notion

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Science and technology

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What Wikipedia says

Uranophane (Ca(UO2)2(SiO3OH)2·5H2O), also known as uranotile, is a rare calcium uranium silicate hydrate mineral that forms from the oxidation of other uranium-bearing minerals. It has a yellow color and is radioactive.

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

Image: Photograph by Andrew Silver, Public domain, via Wikimedia Commons.