Article
Licensed
Unlicensed
Requires Authentication
Synthesis and characterization of low-OH– fluor-chlorapatite: A single-crystal XRD and NMR spectroscopic study
-
Francis M. McCubbin
,
Harris E. Mason
Published/Copyright:
April 1, 2015
Abstract
Low-OH apatite of the compositional range Ca4.99-5.06(PO4)2.98-3.00F0.51-0.48Cl0.38-0.36OH0.14-0.12 was synthesized and characterized structurally by synchrotron-based single-crystal X-ray diffraction (XRD), and multiple nuclear magnetic resonance (NMR) spectroscopic techniques. The average structure is hexagonal with space group P63/m. The presence of scattering in the single-crystal diffraction data set, which is incommensurate within the average hexagonal structure, suggests the presence of localized short-range monoclinic domains. Complex lineshapes in the 31P and 19F MAS NMR spectra are also consistent with the presence of an incommensurate phase. No evidence was detected for splitting of the Ca2 site into two distinct sites (as had been previously reported for hexagonal ternary apatites). Structure refinement and 19F{35Cl} TRAPDOR NMR experiments verified intercolumnal neighboring of F and Cl atoms (inter-column distance of 2.62 Å) within this low-OH- apatite suggesting that long-range neighboring of F and Cl within the apatite anion channels is feasible.
Received: 2007-1-9
Accepted: 2007-9-12
Published Online: 2015-4-1
Published in Print: 2008-1-1
© 2015 by Walter de Gruyter Berlin/Boston
You are currently not able to access this content.
You are currently not able to access this content.
Articles in the same Issue
- Footemineite, the Mn-analog of atencioite, from the Foote mine, Kings Mountain, Cleveland County, North Carolina, U.S.A., and its relationship with other roscherite-group minerals
- Element mobility and scale of mass transport in the formation of quartz veins during regional metamorphism of the Waits River Formation, east-central Vermont
- Chemical and physical transfers in an ultramafic rock weathering profile: Part 1. Supergene dissolution of Pt-bearing chromite
- Chemical and physical transfers in an ultramafic rock weathering profile: Part 2. Dissolution vs. accumulation of platinum group minerals
- Comparative Raman spectroscopic study on ilmenite-type MgSiO3 (akimotoite), MgGeO3, and MgTiO3 (geikielite) at high temperatures and high pressures
- A low-pressure–high-temperature technique for the piston-cylinder
- Pressure-induced structural deformation and elastic behavior of wairakite
- Metamorphic vanadian-chromian silicate mineralization in carbon-rich amphibole schists from the Malé Karpaty Mountains, Western Carpathians, Slovakia
- High-temperature deformation of volcanic materials in the presence of water
- Menezesite, the first natural heteropolyniobate, from Cajati, São Paulo, Brazil: Description and crystal structure
- Single-crystal X-ray and Raman investigation on melanophlogite from Varano Marchesi (Parma, Italy)
- Direnzoite, [NaK6MgCa2(Al13Si47O120)·36H2O], a new zeolite from Massif Central (France): Description and crystal structure
- On twinning and microstructures in calcite and dolomite
- Density functional calculations of the electronic structure and optical properties of aluminosilicate polymorphs (Al2SiO5)
- Crystal-size distribution and composition of garnets in eclogites from the Dabie orogen, central China
- Cation order/disorder behavior and crystal chemistry of pyrope-grossular garnets: An 17O 3QMAS and 27Al MAS NMR spectroscopic study
- Analytical transmission electron microscopy study of a natural MORB sample assemblage transformed at high pressure and high temperature
- Barioperovskite, BaTiO3, a new mineral from the Benitoite Mine, California
- The nature of unusual luminescence in natural calcite CaCO3
- Carbonate in igneous and metamorphic fluorapatite: Two type A and two type B substitutions
- The crystal structure of diopside at pressure to 10 GPa
- Electron backscatter diffraction analysis of zircon: A systematic assessment of match unit characteristics and pattern indexing optimization
- Compressibility trends of the clinopyroxenes, and in-situ high-pressure single-crystal X-ray diffraction study of jadeite
- Synthesis and characterization of low-OH– fluor-chlorapatite: A single-crystal XRD and NMR spectroscopic study
- Pressure dependence of the hydrogen-bond geometry in topaz-OD from neutron powder diffraction
- Environments around Al, Si, and Ca in aluminate and aluminosilicate melts by X-ray absorption spectroscopy at high temperature
- The origin of S4+ detected in silicate glasses by XANES
- Effects of ionizing radiation on the hollandite structure-type: Ba0.85Cs0.26Al1.35Fe0.77Ti5.90O16
- Letter. Toward a thermal model for the Skaergaard liquidus
Articles in the same Issue
- Footemineite, the Mn-analog of atencioite, from the Foote mine, Kings Mountain, Cleveland County, North Carolina, U.S.A., and its relationship with other roscherite-group minerals
- Element mobility and scale of mass transport in the formation of quartz veins during regional metamorphism of the Waits River Formation, east-central Vermont
- Chemical and physical transfers in an ultramafic rock weathering profile: Part 1. Supergene dissolution of Pt-bearing chromite
- Chemical and physical transfers in an ultramafic rock weathering profile: Part 2. Dissolution vs. accumulation of platinum group minerals
- Comparative Raman spectroscopic study on ilmenite-type MgSiO3 (akimotoite), MgGeO3, and MgTiO3 (geikielite) at high temperatures and high pressures
- A low-pressure–high-temperature technique for the piston-cylinder
- Pressure-induced structural deformation and elastic behavior of wairakite
- Metamorphic vanadian-chromian silicate mineralization in carbon-rich amphibole schists from the Malé Karpaty Mountains, Western Carpathians, Slovakia
- High-temperature deformation of volcanic materials in the presence of water
- Menezesite, the first natural heteropolyniobate, from Cajati, São Paulo, Brazil: Description and crystal structure
- Single-crystal X-ray and Raman investigation on melanophlogite from Varano Marchesi (Parma, Italy)
- Direnzoite, [NaK6MgCa2(Al13Si47O120)·36H2O], a new zeolite from Massif Central (France): Description and crystal structure
- On twinning and microstructures in calcite and dolomite
- Density functional calculations of the electronic structure and optical properties of aluminosilicate polymorphs (Al2SiO5)
- Crystal-size distribution and composition of garnets in eclogites from the Dabie orogen, central China
- Cation order/disorder behavior and crystal chemistry of pyrope-grossular garnets: An 17O 3QMAS and 27Al MAS NMR spectroscopic study
- Analytical transmission electron microscopy study of a natural MORB sample assemblage transformed at high pressure and high temperature
- Barioperovskite, BaTiO3, a new mineral from the Benitoite Mine, California
- The nature of unusual luminescence in natural calcite CaCO3
- Carbonate in igneous and metamorphic fluorapatite: Two type A and two type B substitutions
- The crystal structure of diopside at pressure to 10 GPa
- Electron backscatter diffraction analysis of zircon: A systematic assessment of match unit characteristics and pattern indexing optimization
- Compressibility trends of the clinopyroxenes, and in-situ high-pressure single-crystal X-ray diffraction study of jadeite
- Synthesis and characterization of low-OH– fluor-chlorapatite: A single-crystal XRD and NMR spectroscopic study
- Pressure dependence of the hydrogen-bond geometry in topaz-OD from neutron powder diffraction
- Environments around Al, Si, and Ca in aluminate and aluminosilicate melts by X-ray absorption spectroscopy at high temperature
- The origin of S4+ detected in silicate glasses by XANES
- Effects of ionizing radiation on the hollandite structure-type: Ba0.85Cs0.26Al1.35Fe0.77Ti5.90O16
- Letter. Toward a thermal model for the Skaergaard liquidus
