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Jaffeite

Sorosilicate mineral

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Source updated July 29, 2026

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Jaffeite is a hydrated calcium silicate with the following chemical formula: Ca
₆Si
₂O
₇(OH)
₆

01Occurrence

The mineral was first found at the Kombat Mine in Namibia. In 1989, the mineral was named after Prof. Howard W. Jaffe (1919-2002) of the University of Massachusetts Amherst.

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Sources and credits

This article is adapted from the Wikipedia article “Jaffeite”, written by its contributors and licensed under CC BY-SA 4.0. Fathomly has changed the layout, removed citation markers, navigation and maintenance notices, and adjusted punctuation. This adapted version is shared under the same license. For references, see the original article.

Images, from Wikimedia Commons:

Jaffeite.jpg by David Hospital, CC BY-SA 4.0

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