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Die Struktur des Dioptas, Cu6(Si6O18)·6 H2O

✍ Scribed by Hans Gunther Heide

Publisher
Springer
Year
1954
Tongue
English
Weight
513 KB
Volume
41
Category
Article
ISSN
0028-1042

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The normal modes of vibration and their frequencies are calculated for dioptase, a mineral whose crystal structure (space group R3 or C~i ) consists of puckered six-membered silicate rings (Si6Ols) linked by Cu 2 § ions and HaO groups. The calculation employs a valence force potential consisting of

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