Crystal growth of vanadinite in hot brines

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Authors:Franke, W. A.; Suchardjevskiy, S. M.
Volume Title:Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva Proceedings of the Russian Mineralogical Society
Source:Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva = Proceedings of the Russian Mineralogical Society, 123(6), p.80-81. Publisher: Nauka, St. Petersburg, Russian Federation. ISSN: 0869-6055
Publication Date:1994
Note:In Russian with English summary. Based on Publisher-supplied data
Summary:Vanadinite is readily prepared from solutions of PbCl2 on the addition of VO 3- 4 ions, but only as an extremely fine powder. An experimental run lasting 12 months has now produced crystals of vanadinite up to 250 µm in size, by heating a 12 mm diam. tube containing 0.6 g PbCl2, covered by a 100 mm column of solid NaCl (0.4 mm grain size), followed by a saturated solution of NaCl containing 0.5 moles Na-acetate/litre; 0.8 g V2O5 was suspended in the brine on the top of the salt column and the tube was heated to 1000°C. The crystal growth took place by very slow diffusion of Pb2+ ions. The crystal forms are recorded. [R.A.H.]
Subjects:Brines; Chlorides; Crystal growth; Experimental studies; Growth rates; Halides; Heating; High temperature; Laboratory studies; Sodium chloride; Solutions; Synthesis; Temperature; Vanadates; Vanadinite
Abstract Numbers:96M/468
Record ID:2017017382
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom
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