单词 | quartzine |
释义 | quartzinen. Mineralogy. A form of fibrous silica closely similar to chalcedony (of which it is often regarded as a variety), in which the fibres are elongated in a direction parallel to the c-axis. ΚΠ 1893 Amer. Naturalist 27 1005 Chalcedony and two new forms of silica, called by the authors quartzine and lutecite, are the components of these concretions. 1962 C. Frondel Dana's Syst. Mineral. (ed. 7) III. 198 X-ray studies of the so-called quartzin, lutecin, and pesudochalcedonite..have shown that this material and all other chalcedony so far investigated give a powder diffraction pattern identical with that of quartz. 1983 Sedimentology 30 449 (title) Chalcedonic quartz and occurrence of quartzine (length-slow chalcedony) in pelagic sediments. 2003 Amer. Assoc. Petroleum Geologists Bull. 87 1575 Formation of celestite and quartzine phases..coincided with or marginally postdated dolomite at similar depths. This is a new entry (OED Third Edition, December 2007; most recently modified version published online March 2022). quartzineadj. rare. Of the nature of or resembling quartz. ΘΚΠ the world > the earth > minerals > types of mineral > silicates > tectosilicate > [adjective] > quartz quartzose1757 quartzy1757 quartzous1776 quartzine1853 1853 E. K. Kane U.S. Grinnell Exped. v. 40 Gneiss..was the basis material, the quartzine element greatly predominating. 2002 N. Power Good Remains 269 Great shards of quartzine ice clutter the edges of the water. This entry has been updated (OED Third Edition, December 2007; most recently modified version published online March 2022). < n.1893adj.1853 |
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