单词 | plagiocitrite |
释义 | plagiocitriten. Mineralogy. Now historical and rare. An iron aluminosulphate mineral of uncertain identity, described from microscopic yellow crystals found in southern Germany. ΘΚΠ the world > the earth > minerals > types of mineral > sulphates > [noun] > sulphates of two plus elements > hydrous or hydrated polyhalite1818 neoplase1854 römerite1858 kainite1868 mamanite1868 plagiocitrite1886 redingtonite1888 knoxvillite1889 kleinite1907 mosesite1910 ransomite1928 leightonite1938 koktaite1948 1886 Cassell's Encycl. Dict. V. ii Plagiocitrite, a mineral occurring in microscopic crystals derived from the decomposition of iron pyrites. 1892 E. S. Dana J. D. Dana's Syst. Mineral. (ed. 6) vi. 975 Plagiocitrite... Monoclinic or triclinic. In microscopic prismatic crystals... Color lemon-yellow. Translucent. Taste astringent. 1951 C. Palache et al. Dana's Syst. Mineral. (ed. 7) II. 570 Plagiocitrite... Decomposes on exposure, becoming orange-yellow... Found with other secondary iron sulfates in pyritic tuff. This entry has been updated (OED Third Edition, June 2006; most recently modified version published online March 2022). < n.1886 |
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