roepperiten.

Brit.

/ˈrəːpərʌɪt/, U.S.

/ˈrɛpəˌraɪt/,

/ˈroʊpəˌraɪt/

Origin: From a proper name, combined with an English element. Etymons: proper name Roepper , -ite suffix¹.

Etymology: < the name of William T. Roepper (1810–80), German-born U.S. mineralogist + -ite suffix¹.The name Röpperit (in German) was also proposed in 1872 by A. Kenngott (in Neues Jahrb. f. Mineral. 188) for a variety of rhodochrosite described by Roepper; compare quot. 1875.

Mineralogy. Now disused.

A black mineral of the olivine group containing manganese and zinc, now identified with varieties of fayalite or tephroite.The chemical formula assigned to the mineral was (Fe,Mn,Zn)₂SiO₄.

ΘΚΠ

the world > the earth > minerals > types of mineral > silicates > nesosilicates > [noun] > olivine group > others

forsterite1824

fayalite1844

villarsite1846

hortonolite1869

roepperite1872

1872 G. J. Brush in J. D. Dana Syst. Mineral. (new ed.) App. i. 13 Roepperite. Iron, manganese, zinc, chrysolite... Roepperite, G. J. Brush.

1875 E. S. Dana in J. D. Dana Syst. Mineral. (new ed.) App. ii. 49 Kenngott..has proposed to give the name rœpperite to the manganese dolomite, analysed by Rœpper... Almost simultaneously..Brush gave the name rœpperite to the new chrysolite of Rœpper, and there is no question but that this name should be received.

1961 Amer. Mineralogist 46 549 Roepperite is black... It has been described as a variety of tephroite containing notably high amounts of FeO and ZnO.

1984 Mineral. Mag. 48 139 The terms knebelite, tephroite, and roepperite have all been used for..the same mineral at Broken Hill.

This entry has been updated (OED Third Edition, November 2010; most recently modified version published online March 2022).

单词	roepperite
释义	roepperiten. Brit. /ˈrəːpərʌɪt/, U.S. /ˈrɛpəˌraɪt/, /ˈroʊpəˌraɪt/ Origin: From a proper name, combined with an English element. Etymons: proper name Roepper , -ite suffix¹. Etymology: < the name of William T. Roepper (1810–80), German-born U.S. mineralogist + -ite suffix¹.The name Röpperit (in German) was also proposed in 1872 by A. Kenngott (in Neues Jahrb. f. Mineral. 188) for a variety of rhodochrosite described by Roepper; compare quot. 1875. Mineralogy. Now disused. A black mineral of the olivine group containing manganese and zinc, now identified with varieties of fayalite or tephroite.The chemical formula assigned to the mineral was (Fe,Mn,Zn)₂SiO₄. ΘΚΠ the world > the earth > minerals > types of mineral > silicates > nesosilicates > [noun] > olivine group > others forsterite1824 fayalite1844 villarsite1846 hortonolite1869 roepperite1872 1872 G. J. Brush in J. D. Dana Syst. Mineral. (new ed.) App. i. 13 Roepperite. Iron, manganese, zinc, chrysolite... Roepperite, G. J. Brush. 1875 E. S. Dana in J. D. Dana Syst. Mineral. (new ed.) App. ii. 49 Kenngott..has proposed to give the name rœpperite to the manganese dolomite, analysed by Rœpper... Almost simultaneously..Brush gave the name rœpperite to the new chrysolite of Rœpper, and there is no question but that this name should be received. 1961 Amer. Mineralogist 46 549 Roepperite is black... It has been described as a variety of tephroite containing notably high amounts of FeO and ZnO. 1984 Mineral. Mag. 48 139 The terms knebelite, tephroite, and roepperite have all been used for..the same mineral at Broken Hill. This entry has been updated (OED Third Edition, November 2010; most recently modified version published online March 2022). < n.1872
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