Acta Cryst. (2001). E57, i119-i121  [ doi:10.1107/S1600536801020037 ]

Refinement of pyrobelonite, PbMn^IIVO₄(OH), a member of the descloizite group

U. Kolitsch

Abstract: Pyrobelonite [lead manganese(II) vanadate(V) hydroxide], PbMn^IIVO₄(OH), has been refined in space group Pnma. It is isostructural with descloizite, PbZnVO₄(OH). Mn^IIO₄(OH)₂ octahedra share edges to form infinite chains parallel to the b axis. Distorted VO₄ tetrahedra share vertices with the octahedra to form a compact framework, in which voids are occupied by [3+4]-coordinated Pb²⁺ cations. All atoms except O3 are on special positions with site symmetry (Mn) or .m. (remaining atoms).

Online 30 November 2001

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