riebeckiten.

Brit.

/ˈriːbəkʌɪt/, U.S.

/ˈribəˌkaɪt/

Origin: From a proper name, combined with an English element; modelled on a German lexical item. Etymons: proper name Riebeck , -ite suffix¹.

Etymology: < the name of Emil Riebeck (d. 1885), German explorer + -ite suffix¹, after German Riebeckit (A. Sauer 1888, in Zeitschrift der Deutsch. Geol. Gesellschaft 40 138).

Mineralogy.

Any of a group of amphiboles containing sodium, often with some magnesium, found as dark blue or black prismatic crystals, chiefly in alkaline igneous rocks, or as crocidolite (blue asbestos).Riebeckite is a sodium–iron silicate mineral, Na₂(Fe,Mg)₅Si₈O₂₂(OH)₂. Crystal system: monoclinic.

ΘΚΠ

the world > the earth > minerals > types of mineral > silicates > amphibole (double chain) > [noun] > riebeckite

riebeckite1888

rhodusite1894

magnesioriebeckite1957

1888 Amer. Naturalist 22 1022 Riebeckite. In a flesh-red granite from the island of Socotro.., Sauer has found a hornblende which corresponds exactly to aegerine among the augites.

1927 S. J. Shand Eruptive Rocks ix. 163 A typical example of the Quincy granite gave quartz 33, sodipotassic felspar 55, and ægirine and riebeckite 10 per cent.

1965 G. J. Williams Econ. Geol. N.Z. ix. 141/1 It should not pass unnoticed that the Taipo Valley thorite occurrence also contains rutile..and that the presence of riebeckite suggests an alkali environment.

1990 C. Pellant Rocks, Minerals & Fossils 15/1 Porphyritic microgranite. Dark crystals of amphibole (riebeckite) in a pale groundmass of alkali feldspar and quartz.

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

单词	riebeckite
释义	riebeckiten. Brit. /ˈriːbəkʌɪt/, U.S. /ˈribəˌkaɪt/ Origin: From a proper name, combined with an English element; modelled on a German lexical item. Etymons: proper name Riebeck , -ite suffix¹. Etymology: < the name of Emil Riebeck (d. 1885), German explorer + -ite suffix¹, after German Riebeckit (A. Sauer 1888, in Zeitschrift der Deutsch. Geol. Gesellschaft 40 138). Mineralogy. Any of a group of amphiboles containing sodium, often with some magnesium, found as dark blue or black prismatic crystals, chiefly in alkaline igneous rocks, or as crocidolite (blue asbestos).Riebeckite is a sodium–iron silicate mineral, Na₂(Fe,Mg)₅Si₈O₂₂(OH)₂. Crystal system: monoclinic. ΘΚΠ the world > the earth > minerals > types of mineral > silicates > amphibole (double chain) > [noun] > riebeckite riebeckite1888 rhodusite1894 magnesioriebeckite1957 1888 Amer. Naturalist 22 1022 Riebeckite. In a flesh-red granite from the island of Socotro.., Sauer has found a hornblende which corresponds exactly to aegerine among the augites. 1927 S. J. Shand Eruptive Rocks ix. 163 A typical example of the Quincy granite gave quartz 33, sodipotassic felspar 55, and ægirine and riebeckite 10 per cent. 1965 G. J. Williams Econ. Geol. N.Z. ix. 141/1 It should not pass unnoticed that the Taipo Valley thorite occurrence also contains rutile..and that the presence of riebeckite suggests an alkali environment. 1990 C. Pellant Rocks, Minerals & Fossils 15/1 Porphyritic microgranite. Dark crystals of amphibole (riebeckite) in a pale groundmass of alkali feldspar and quartz. This entry has been updated (OED Third Edition, June 2010; most recently modified version published online March 2022). < n.1888
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