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Structural variations in mercurian tetrahedrite

  • Franklin F. Foit EMAIL logo and John M. Hughes
Published/Copyright: March 28, 2015
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American Mineralogist
From the journal American Mineralogist Volume 89 Issue 1

Abstract

The structures of four mercurian tetrahedrite samples, [IV][(Cu+)4(Hg,Zn,Fe)2] [III](Cu+)6 [III] (Sb,As)4[IV]S12[VI]S, with Hg-contents ranging from 0.32 to 1.15 apfu were refined by least-squares in space group I4̅3m to agreement factors R < 0.027. The α cell dimension varied from 10.3310(2) to 10.4033(2) Å; both the α cell dimension and the size of the [IV]M1 site vary linearly with the Hg content. The magnitude of the observed variation in the α cell dimension partially validates the empirical relationship developed by previous investigators. The degree of distortion and amount of rotation of the [IV]M1 tetrahedron as a function of the M1-S1 bond length is comparable to that predicted by the empirical relationships of previous investigators when the As content is taken into account. The spinner blade length remains virtually unchanged because the Hg substitution takes place at M1 and the As:Sb ratio varies only slightly. The structural trends as a function of composition in these mercurian tetrahedrites closely follows those previously predicted by modeling using ionic radii and

Received: 2003-1-31
Accepted: 2003-4-7
Published Online: 2015-3-28
Published in Print: 2004-1-1

© 2015 by Walter de Gruyter Berlin/Boston

Articles in the same Issue

  1. Indialite in xenolithic rocks from Somma-Vesuvius volcano (Southern Italy): Crystal chemistry and petrogenetic features
  2. Coexisting chromian omphacite and diopside in tremolite schist from the Chugoku Mountains, SW Japan: The effect of Cr on the omphacite-diopside immiscibility gap
  3. 2111 biopyribole intermediate between pyroxene and amphibole: Artifact or natural product?
  4. Coexisting clinopyroxene/spinel and amphibole/spinel symplectites in metatroctolites from the Buck Creek ultramafic body, North Carolina Blue Ridge
  5. The T-X dependence of the isosymmetric displacive phase transition in synthetic Fe3+-Al zoisite: A temperature-dependent infrared spectroscopy study
  6. A kinetic study of the exsolution of pentlandite (Ni,Fe)9S8from the monosulfide solid solution (Fe,Ni)S
  7. Single-crystal plagioclase feldspar dissolution rates measured by vertical scanning interferometry
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  9. Constraints on mingling of crystal populations from off-center zoning profiles: A statistical approach
  10. Pyribole evolution during tremolite synthesis from oxides
  11. Solution calorimetric determination of the enthalpies of formation of NH4-bearing minerals buddingtonite and tobelite
  12. Dehydration dynamics of bikitaite: Part I. In situ synchrotron powder X-ray diffraction study
  13. Dehydration dynamics of bikitaite: Part II. Ab initio molecular dynamics study
  14. Phosphate mineral associations in the Cañada pegmatite (Salamanca, Spain): Paragenetic relationships, chemical compositions, and implications for pegmatite evolution
  15. An improved equation for crystal size distribution in second-phase influenced aggregates
  16. Vibrational spectroscopy of pyrope-majorite garnets: Structural implications
  17. The modulated crystal structure of antigorite: The m = 17 polysome
  18. Structural variations in mercurian tetrahedrite
  19. A computational investigation of the Al/Fe/Mg order-disorder behavior in the dioctahedral sheet of phyllosilicates
  20. Investigation of Al/Si ordering in tetrahedral phyllosilicate sheets by Monte Carlo simulation
  21. Equations of state of ZrSiO4phases in the upper mantle
  22. High pressure behavior, transformation and crystal structure of synthetic iron-free pigeonite
  23. In situ determination of the compressibility of synthetic pure zircon (ZrSiO4) and the onset of the zircon-reidite phase transition
  24. Halite-sylvite thermoelasticity
  25. Spiral growth of grossular under hydrothermal conditions
  26. Incomplete retention of radiation damage in zircon from Sri Lanka
  27. Shirozulite, KMn32+(Si3Al)O10(OH)2, a new manganese-dominant trioctahedral mica: Description and crystal structure
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https://doi.org/10.2138/am-2004-0118

Articles in the same Issue

  1. Indialite in xenolithic rocks from Somma-Vesuvius volcano (Southern Italy): Crystal chemistry and petrogenetic features
  2. Coexisting chromian omphacite and diopside in tremolite schist from the Chugoku Mountains, SW Japan: The effect of Cr on the omphacite-diopside immiscibility gap
  3. 2111 biopyribole intermediate between pyroxene and amphibole: Artifact or natural product?
  4. Coexisting clinopyroxene/spinel and amphibole/spinel symplectites in metatroctolites from the Buck Creek ultramafic body, North Carolina Blue Ridge
  5. The T-X dependence of the isosymmetric displacive phase transition in synthetic Fe3+-Al zoisite: A temperature-dependent infrared spectroscopy study
  6. A kinetic study of the exsolution of pentlandite (Ni,Fe)9S8from the monosulfide solid solution (Fe,Ni)S
  7. Single-crystal plagioclase feldspar dissolution rates measured by vertical scanning interferometry
  8. A simple empirical method for high-quality electron microprobe analysis of fluorine at trace levels in Fe-bearing minerals and glasses
  9. Constraints on mingling of crystal populations from off-center zoning profiles: A statistical approach
  10. Pyribole evolution during tremolite synthesis from oxides
  11. Solution calorimetric determination of the enthalpies of formation of NH4-bearing minerals buddingtonite and tobelite
  12. Dehydration dynamics of bikitaite: Part I. In situ synchrotron powder X-ray diffraction study
  13. Dehydration dynamics of bikitaite: Part II. Ab initio molecular dynamics study
  14. Phosphate mineral associations in the Cañada pegmatite (Salamanca, Spain): Paragenetic relationships, chemical compositions, and implications for pegmatite evolution
  15. An improved equation for crystal size distribution in second-phase influenced aggregates
  16. Vibrational spectroscopy of pyrope-majorite garnets: Structural implications
  17. The modulated crystal structure of antigorite: The m = 17 polysome
  18. Structural variations in mercurian tetrahedrite
  19. A computational investigation of the Al/Fe/Mg order-disorder behavior in the dioctahedral sheet of phyllosilicates
  20. Investigation of Al/Si ordering in tetrahedral phyllosilicate sheets by Monte Carlo simulation
  21. Equations of state of ZrSiO4phases in the upper mantle
  22. High pressure behavior, transformation and crystal structure of synthetic iron-free pigeonite
  23. In situ determination of the compressibility of synthetic pure zircon (ZrSiO4) and the onset of the zircon-reidite phase transition
  24. Halite-sylvite thermoelasticity
  25. Spiral growth of grossular under hydrothermal conditions
  26. Incomplete retention of radiation damage in zircon from Sri Lanka
  27. Shirozulite, KMn32+(Si3Al)O10(OH)2, a new manganese-dominant trioctahedral mica: Description and crystal structure
  28. Novel phase transition in orthoenstatite
  29. In situ observation of the thermal decomposition of weddelite by heating stage environmental scanning electron microscopy
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