TY - JOUR
T1 - The crystal structure of carminite
T2 - Refinement and bond valence calculations
AU - Kharisun, null
AU - Taylor, Max R.
AU - Bevan, D. J.M.
AU - Pring, Allan
PY - 1996/10/1
Y1 - 1996/10/1
N2 - The crystal structure ofcarminite. PbFe2(AsO4)2(OH)2 has been refined. The mineral is orthorhombic, Cccm with a = 16.591(2), b = 7.580(1). c = 12.285(1) Å, Z = 8; the structure has been refined to a conventional R = 3.3% using 913 observed reflections [1>2σ(I)]. The structure contains stepped chains of edge-sharing pairs of Fe(O,OH)6 octahedra: these chains are linked by AsO4 tetrahedra and Pb atoms in distorted square antiprismatic co-ordination. The hydrogen bonding network in the structure has been modelled using bond valence calculations.
AB - The crystal structure ofcarminite. PbFe2(AsO4)2(OH)2 has been refined. The mineral is orthorhombic, Cccm with a = 16.591(2), b = 7.580(1). c = 12.285(1) Å, Z = 8; the structure has been refined to a conventional R = 3.3% using 913 observed reflections [1>2σ(I)]. The structure contains stepped chains of edge-sharing pairs of Fe(O,OH)6 octahedra: these chains are linked by AsO4 tetrahedra and Pb atoms in distorted square antiprismatic co-ordination. The hydrogen bonding network in the structure has been modelled using bond valence calculations.
KW - Carminite
KW - Crystal structure refinement
KW - Hydrogen bonding network
UR - http://www.scopus.com/inward/record.url?scp=0030513386&partnerID=8YFLogxK
U2 - 10.1180/minmag.1996.060.402.11
DO - 10.1180/minmag.1996.060.402.11
M3 - Article
AN - SCOPUS:0030513386
SN - 0026-461X
VL - 60
SP - 805
EP - 811
JO - Mineralogical Magazine
JF - Mineralogical Magazine
IS - 5
ER -