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Knebelite is a silicate mineral, a manganese variety of fayalite with formula (Fe,Mn)2SiO4. It forms dark green orthorhombic crystals. It is reported from a variety of locations in Sweden as well as South Africa, Russia, British Columbia, New Hampshire, and Rhode Island.

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Knebelite". A list of authors is available in Wikipedia.
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