单词 | koenenite |
释义 | koeneniten. Mineralogy. A hydroxide and chloride of magnesium, aluminium, and sodium (formerly thought to be an impurity), which forms pale yellow scales when pure, but is normally red owing to enclosed hæmatite. ΘΚΠ the world > the earth > minerals > types of mineral > halides > [noun] > other chlorides or oxychlorides horn-mercury1776 horn-lead1783 manganesane1815 percylite1850 mendipite1851 kremersite1854 horn-quicksilver1860 molysite1868 hydrophilite1875 pseudocotunnite1876 lawrencite1877 heliophyllite1890 koenenite1902 rinneite1909 kempite1924 1902 Jrnl. Chem. Soc. 82 ii. 611 Koenenite. This new mineral was found..in crevices in the clay of the salt deposits at Volpriehausen, in the Sollinger Wald, Hanover. It is red in colour. 1952 Mineral. Abstr. XI. 459 Koenenite is widely distributed in the German salt deposits, occurring in salt-clay with blue halite, in anhydrite ‘Hartsalz’, and carnallite. 1968 Zeitschr. f. Kristallogr. CXXVI. 7 Koenenite, 4NaCl.4(Mg,Ca)Cl2.5Mg(OH)2.4Al(OH)3, is built up of two trigonal substructures: [Na4(Ca,Mg)2Cl12]4− and [Mg7Al4(OH)22]4+. 1968 I. Kostov Mineral. ii. iii. 195 Koenenite is trigonal with perfect {0001} cleavage. This entry has not yet been fully updated (first published 1933; most recently modified version published online June 2018). < n.1902 |
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