Knebelite

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.

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v • d • e Manganese minerals

Borates	Sussexite · Tusionite

Carbonates	Ankerite · Kutnohorite · Rhodochrosite · Manganoan Calcite

Oxides	Birnessite · Bixbyite · Ferrocolumbite · Ferrotantalite · Galaxite · Glaucochroite · Hausmannite · Hübnerite · Jacobsite · Manganite · Manganotantalite · Nsutite · Psilomelane · Pyrolusite · Romanèchite · Tantalite · Todorokite · Umber · Wolframite

Phosphates	Childrenite · Graftonite · Lithiophilite · Natrophilite · Purpurite · Triplite · Triploidite · Zanazziite

Silicates	Babingtonite · Bixbite · Braunite · Calderite · Chloritoid · Eudialyte · Jeffersonite · Knebelite · Ottrelite · Piemontite · Pyroxferroite · Rhodonite · Spessartine · Sugilite · Tephroite · Zakharovite · Zircophyllite

Sulfides	Alabandite · Hauerite · Rambergite

Other	Axinite (borosilicate) · Geigerite (arsenate) · Manganese nodule (various) · Zincobotryogen (sulfate)