Anorthominasragrite, V4+ O (So4) (H2o)5, a New Mineral Species From Temple Mountain, Emery County, Utah, U.S.A.: Description, Crystal Structure and Hydrogen Bonding

Anorthominasragrite, V 4+ O (SO4) (H2O)5, is a new mineral species from Temple Mountain, Emery County, Utah, U.S.A. It occurs as blue-green crusts and spherical granular aggregates (up to ~1 mm across) in a fossil (Triassic) tree; individual crystals are 5F) reflections measured with an automated fourcircle X-ray diffractometer using MoK X-radiation. There is one V site occupied by V 4+ and surrounded by three O atoms and three (H2O) groups in an octahedral arrangement, with one short vanadyl bond (1.587 A), four similar equatorial bonds ( ), and one longer V–O bond (2.253 A) trans to the vanadyl bond. The structure consists of (V 4+ 6) (: unspecified anion) octahedra and (SO4) tetrahedra that corner-share O 2– vertices to form (V 4+ O)2 (H2O)6 (SO4)2 groups [as in bobjonesite, V 4+ O (SO4) (H2O)3], with two additional isolated (H2O) groups.