QUANTITATIVE OPTICAL INVESTIGATION OF THE REALGAR FROM THE ARSENIC-BEARING DEPOSIT BANJAK SOUTH OF THE TOWN OF KISELJAK IN BOSNIA
In this paper the author presented the data for the reflectivity of the realgar from the arsenic deposit Banjak near Kiseljak in Bosnia obtained by Berek's »Spaltmikroskopphotometer«, The. measurements were carried out for each spectral area (E, D, C) both in air and in cedar oil. Using the spe...
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| Format: | Article |
| Language: | English |
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Faculty of Mining, Geology and Petroleum Engineering
1989-12-01
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| Series: | Rudarsko-geološko-naftni Zbornik |
| Subjects: | |
| Online Access: | http://hrcak.srce.hr/index.php?show=clanak&id_clanak_jezik=38788&lang=en |
| Summary: | In this paper the author presented the data for the reflectivity of the realgar from the arsenic deposit Banjak near Kiseljak in Bosnia obtained by Berek's »Spaltmikroskopphotometer«, The. measurements were carried out for each spectral area (E, D, C) both in air and in cedar oil. Using the special Berek's ocular with the eliptical analyser and rotating mica plate as the special objective without effects of polarization the author measured and reported following quantitative optical parameters of the realgar: (a) »Symetrieforderung nach Berek«; (b) characteristic angle τ; (c) polarization coefficient (η2-η1) or »reduzierte Doppelbrechung«; (d) phase coefficient (x2 - x1) or »Doppelapsorption« (e) values for R1, and R2, and R2/R1; (f) reflection pleochroism (R2 — R1) (the paper is published in Croatian). |
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| ISSN: | 0353-4529 1849-0409 |