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单词 peristerite
释义

peristeriten.

Brit. /pᵻˈrɪstərʌɪt/, U.S. /pəˈrɪstəraɪt/
Origin: A borrowing from Greek, combined with an English element. Etymons: Greek περιστερά , -ite suffix1.
Etymology: < ancient Greek περιστερά pigeon (perhaps by dissimilation < an unattested *πελιστερά < πελιός livid, dark bluish grey (see peliosis n.) + -τερος , comparative suffix: see other adj., pron., n., and adv.2), in allusion to its colour + -ite suffix1.
Mineralogy.
A sodic plagioclase in the albite–oligoclase range of composition with a blue or bluish-white opalescence.
ΘΚΠ
the world > the earth > minerals > types of mineral > silicates > tectosilicate > [noun] > feldspar > plagioclase > albites
albite1817
pericline1832
adinole1835
peristerite1843
potass-albite1850
zygadite1861
albitite1896
1843 T. Thomson in London, Edinb., & Dublin Philos. Mag. 22 189 Peristerite..was sent me also from Perth in Upper Canada... It is light brownish red, and exhibits a play of colours, chiefly blue, on the surface.
1948 R. M. Pearl Pop. Gemol. iv. 180 A rare variety of albite called peristerite, from Canada and Madagascar, shows a play of colors when held in a certain position.
1992 W. A. Deer et al. Introd. Rock-forming Minerals (ed. 2) 434 Peristerites can be homogenized by heating to yield a member of the high-temperature series with high-albite structure.
This entry has been updated (OED Third Edition, December 2005; most recently modified version published online March 2022).
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n.1843
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