johannseniten.
/dʒəʊˈhansənʌɪt/ Mineralogy.
A brown, greyish, or greenish silicate of calcium and manganese, CaMnSi2O6, which often occurs with partial substitution of ferrous iron for manganese.
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the world > the earth > minerals > types of mineral > silicates > inosilicates single chain > [noun] > pyroxene > clinopyroxenes > others
hedenbergite1822
manganhedenbergite1887
pigeonite1900
johannsenite1932
1932 Amer. Mineralogist 17 575 The Mineralogical Society of America... List of papers to be presented Wednesday, December 28, 1932... W. T. Schaller.—Johannsenite, a new manganese pyroxene.
1963 W. A. Deer et al. Rock-forming Minerals II. 75 Johannsenite, the manganese analogue of diopside and hedenbergite, occurs in metasomatized limestones, and is found less frequently as a vein mineral.
This entry has not yet been fully updated (first published 1976; most recently modified version published online June 2018).
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