单词 | peristerite |
释义 | peristeriten. 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). < n.1843 |
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