Topaz Structure Data

Topaz Structure Data
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Topaz

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Topaz_7
Formula: Al2 Si O4 F2
Name: Topaz
Unit cell: 4.6071 8.7614 8.2765 90.0 90.0 90.0 , V=334.08
Space group: PBNM (62)

Gatta G D , Nestola F , Ballaran T B , Physics and Chemistry of Minerals , 33 (2006) p.235-242, Elastic behaviour and structural evolution, of topaz at high pressure, Locality: Ouro Preto, Minas Gerias, Brazil, Sample: P = 5.79 GPa

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