Aenigmatite

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Science and technology

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What Wikipedia says

Aenigmatite, also known as cossyrite after Cossyra, the ancient name of Pantelleria, is a sodium, iron, titanium inosilicate mineral. The chemical formula is Na2Fe2+5TiSi6O20 and its structure consists of single tetrahedral chains with a repeat unit of four and complex side branches.

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

Image: Pedro Alves, CC BY 3.0, via Wikimedia Commons.