单词 | kämmererite |
释义 | kämmereriten. Mineralogy. A mineral of the chlorite group that is a chromiferous variety of pennine and occurs as soft, flaky, pale violet crystals. ΘΚΠ the world > the earth > minerals > types of mineral > silicates > phyllosilicate > [noun] > chlorite > other chlorites grengasite1844 thuringite1844 kämmererite1854 prochlorite1867 tabergite1868 diabantite1875 klementite1892 manganchlorite1898 brunsvigite1902 nimite1968 1854 J. D. Dana Syst. Mineral. (ed. 4) II. 292 Kæmmererite occurs in hexagonal prisms, of a reddish violet color... Found with chromic iron at Bissersk, Siberia; also at Texas, Lancaster Co., Pennsylvania. 1879 Min. Mag. 2 23 Massive granular Kammererite..in considerable quantity. 1883 Encycl. Brit. XVI. 414/1 Kämmererite, with 5 to 8 chromium sesquioxide, is violet-blue or green. 1926 Amer. Jrnl. Sci. 211 284 Chlorite includes as end members..(7) H4Mg2Cr2SiO9 (kämmererite or Kr). 1928 Q. Jrnl. Geol. Soc. 83 647 The most extensively-developed chromiferous silicate in the Shetlands is the chrome-chlorite (kämmererite). 1958 Amer. Mineralogist 43 954 Chromium substitutes into both the octahedral and tetrahedral positions of chlorite. Above 2 per cent chromic oxide content, the former are termed kammererite, and the latter kotschubeite. This entry has not yet been fully updated (first published 1933; most recently modified version published online December 2020). < |
随便看 |
|
英语词典包含1132095条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。