Abstract
In this experimental work I studied the correlation of the specific gravity and index of refraction at 19 moldavites from a finding place in Něchov. This place is in the south of Bohemia, in a district of České Budějovice (Budweis). The reason for this work was the extraordinary declaration of the correlation of the specific gravity and index of refraction at one moldavite from Něchov that is: d=2,395 and n D =1,5033.
These declarations were settled by Nováček. The results of these measurings have shown that the linear correlation of the specific gravity and index of refraction of the moldavites from other finding places are characteristic also for these ones. The definition of this correlation at 19 pieces of moldavites from Něchov shows also this linear character in the measuring of values d=2,355–2,395 and n D =1,4870–1,4950.
In this work there were settled also some other dates of unity (so-called “in couple-moldavites”). But we must not oversee certain vaccilations of the declaration at the moldavites from Něchov, as at those from other finding places. The secularity of these declarations about the moldavites of Něchov lies also therein, that the avarage value of the correlation of specific gravity and index of refraction of this finding place is higher than those of other places.
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Herrn Dr. Walter Weiskirchner, Dozent an der Universität Tübingen, danke ich herzlich für die freundliche Durchsicht der Arbeit.
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Adamovská, D. Dichte und Lichtbrechung der Moldavite von Něchov. Contr. Mineral. and Petrol. 16, 204–209 (1967). https://doi.org/10.1007/BF00371092
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DOI: https://doi.org/10.1007/BF00371092