Kinoite

Rarity: Common

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Science and technology

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What Wikipedia says

Kinoite (Ca2Cu2Si3O8(OH)4 or Ca2Cu2Si3O10 · 2 H2O) is a light blue copper silicate mineral. It is somewhat scarce. It has a monoclinic crystal system, vitreous luster, and is transparent to translucent. It can be found in the Santa Rita Mountains, the Christmas Mine at Christmas, Arizona and a few other copper mines.

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

Image: Leon Hupperichs, CC BY-SA 3.0, via Wikimedia Commons.