单词 | kochubeïte |
释义 | kochubeïten. Mineralogy. A mineral of the chlorite group that is a chromiferous variety of clinochlore and occurs as rose-red rhombohedral crystals. ΘΚΠ the world > the earth > minerals > types of mineral > silicates > phyllosilicate > [noun] > chlorite > clinoclore leuchtenbergite1844 ripidolite1844 clinochlore1851 kochubeïte1868 pycnochlorite1903 sheridanite1912 1868 J. D. Dana Syst. Mineral. (ed. 5) 500 Kotschubeite..in the district of Ufaleisk, Southern Ural. 1910 Encycl. Brit. VI. 256 Alumina may also be partly replaced by chromic oxide, as in the rose-red varieties [of chlorite] kämmererite and kotschubeite. 1929 H. L. Bowman Miers' Mineral. 562 Two very striking chrome-chlorites of a deep rose-red colour..have received the names kämmererite and kotschubeite. 1954 Mineral. Mag. XXX. 280 The chromiferous chlorites include three varieties: kämmererite..; chrome-clinochlore, with less than 4% Cr2O3; and kochubeïte, a variety of clinochlore with more than 4% Cr2O3. 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 1976; most recently modified version published online March 2022). < |
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