1923
DOI: 10.1524/zkri.1923.59.1.216
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XI. Röntgenographische Untersuchungen am Topas

Abstract: Das Hauptziel der Arbeit war die Bestimmung der dem Topas zugehörigen Raumgruppe. Untersucht wurden Schliffe nach (100), (010), (001),, (021), (111) aus Kristallen von San Louis Potosi in Mexiko und zwar nach der Methode der Lauediagramme und Drehspektrogramme. -Das Material zeigte im Röntgenlicht eine leichte Lumineszenz. I. Die LauecUagramme. Auf die Veröffentlichung der Auswertungsergebnisse der einzelnen Aufnahmen sei hier verzichtet. Dem Zwecke, trolzdem eine Nachprüfung zu ermöglichen, dienen folgende Be… Show more

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“…[36]). Lattice dimensions and the space group of topaz were first determined in [37], first full crystal structure determinations were published independently in 1928 in [38,39], with later refinements by several groups, using x-rays as well as neutron diffraction (see, e.g., [40][41][42][43][44][45][46]). These more recent detailed structural studies, in particular, include information about the topological configuration of the (OH) groups, which can occupy statistically the F sites of the crystal structure.…”
Section: Crystals and Srs Setupmentioning
confidence: 99%
“…[36]). Lattice dimensions and the space group of topaz were first determined in [37], first full crystal structure determinations were published independently in 1928 in [38,39], with later refinements by several groups, using x-rays as well as neutron diffraction (see, e.g., [40][41][42][43][44][45][46]). These more recent detailed structural studies, in particular, include information about the topological configuration of the (OH) groups, which can occupy statistically the F sites of the crystal structure.…”
Section: Crystals and Srs Setupmentioning
confidence: 99%