X-ray structural investigation of the oxyvanite (V3 O5) berdesinskiite (V2 TiO5) series: V4+ substituting for octahedrally coordinated Ti4+

Abstract

The crystal structures of three different solid-solution members between the new mineral oxyvanite (V3O5) - and berde- sinskiite (V2TiO5) from a quartzite rock in the Pereval marble quarry of the Sludyanka complex, south of Lake Baikal (Russia), have been refined in space group C2/c (a � 10.0, b � 5.0, c � 7.0 A ˚ , b � 111 � ) from X-ray single-crystal diffraction-data. The composition of the studied crystals, determined by electron-microprobe analyses, is: ðV 3þ