来自瑞士纳沙塔尔La Presta沥青矿的Rosickyite(单斜γ -硫):新的x射线粉末衍射数据

Schweizerische Mineralogische Und Petrographische Mitteilungen Pub Date : 1900-01-01 DOI:10.5169/SEALS-60969

N. Meisser, K. Schenk, J. Spangenberg

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引用次数: 5

摘要

罗氏石是硫的天然单斜γ形式，只存在于世界上的几个地方。在纳沙泰尔拉普雷斯塔的旧沥青矿里。在瑞士，罗氏石局部以小而结构良好的晶体形式存在，适合晶体学研究。它是富含黄铁矿的沥青的改造产物。经气相色谱-质谱分析，la Presta矿的罗氏石为纯分子硫。该物种的x射线粉末衍射数据与先前发表的数据不匹配。因此，进行了单晶研究，并提出了一种新的天然罗氏石的x射线粉末衍射图。

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Rosickyite (monoclinic gamma-sulphur) from La Presta Asphalt Mine, Neuchatel, Switzerland: new X-ray powder diffraction data

Rosickyite, the natural monoclinic gamma -form of sulphur, exists in only a few localities around the globe. In the old asphalt mine at La Presta, Neuchatel. Switzerland, rosickyite occurs locally as small, but very well formed crystals suitable for crystallographic studies. It grows as an alteration product of pyrite-rich asphalt. Rosickyite from La Presta mine is pure molecular sulphur, as revealed by gas chromatography-mass spectrometry. The X-ray powder diffraction data of La Presta rosickyite does not match the one previously published for this species. Therefore, a single crystal study was undertaken and a new indexed X-ray powder diffraction diagram for natural rosickyite is proposed.

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Schweizerische Mineralogische Und Petrographische Mitteilungen

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