Scolecite

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Notion

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Science and technology

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What Wikipedia says

Scolecite is a tectosilicate mineral belonging to the zeolite group; it is a hydrated calcium silicate, CaAl2Si3O10·3H2O. Only minor amounts of sodium and traces of potassium substitute for calcium. There is an absence of barium, strontium, iron and magnesium.

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

Image: Didier Descouens, CC BY 4.0, via Wikimedia Commons.