knebelite

mineral

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Last updated

June 30, 2026

Quick Summary

Knebelite is a mineral composed of iron and manganese silicate, with the chemical formula (Fe,Mn)₂SiO₄. It is typically variously colored and has a specific gravity of 4.1. Knebelite is found in specific locations, such as Sweden. The name "knebelite" originates from German, with "-ite" indicating it is a mineral.1

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olivine
Chemical composition
…intermediate in the series is knebelite (FeMnSiO₄). Tephroite and knebelite come from manganese and iron ore deposits, from metamorphosed manganese-rich sedimentary rocks, and from slags.
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…intermediate in the series is knebelite (FeMnSiO₄). Tephroite and knebelite come from manganese and iron ore deposits, from metamorphosed manganese-rich sedimentary rocks, and from slags.
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olivine
Other occurrences
Knebelite olivines are restricted to iron-manganese ore deposits, to their associated skarn (lime-bearing silicate rocks) zones, and to metamorphosed manganiferous sediments. At Franklin, N.J., U.S., tephroite and glaucochroite occur in the same deposit as roepperite, a knebelite containing 10.7 percent by weight of zinc oxide…
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Knebelite olivines are restricted to iron-manganese ore deposits, to their associated skarn (lime-bearing silicate rocks) zones, and to metamorphosed manganiferous sediments. At Franklin, N.J., U.S., tephroite and glaucochroite occur in the same deposit as roepperite, a knebelite containing 10.7 percent by weight of zinc oxide…
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