Freitalite, C<sub>14</sub>H<sub>10</sub>, a new aromatic hydrocarbon mineral from Freital, Saxony, Germany
نویسندگان
چکیده
Abstract. The new mineral species freitalite, C14H10, corresponding to the aromatic hydrocarbon anthracene, has been discovered on mine dump of Königin Carola shaft (also named Paul Berndt Mine), Freital, near Dresden, Saxony, Germany. forms thin blades or flakes irregular shape up a few millimetres in size and shows an intense violet whitish-violet white colour. Freitalite is product pyrolysis coal at low oxygen fugacity was formed by sublimation from gas phase. associated with sulfur hoelite. Elemental analysis gave (in wt. %, average three analyses) C 94.07, H 5.571 total 99.641. empirical formula C14.00H9.88 (calculated for = 14). identity anthracene confirmed infrared Raman spectroscopy, high-performance liquid chromatography, chromatography mass spectrometry, 1H 13C NMR X-ray powder diffraction. monoclinic, P21?a, lattice parameters a=8.5572(9), b=6.0220(5), c=11.173(1) Å, ?=124.174(1)? V=476.34(3) Å3 refined data. calculated density 1.242 g cm?3 (for Z=2) very close measured 1.240 cm?3. accepted as Commission New Minerals, Nomenclature Classification International Mineralogical Association (IMA 2019-116).
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ژورنال
عنوان ژورنال: European Journal of Mineralogy
سال: 2021
ISSN: ['1617-4011', '0935-1221']
DOI: https://doi.org/10.5194/ejm-33-1-2021