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First reported sedimentary occurrence of berlinite (AlPO4) in phosphate-bearing sediments from Cioclovina Cave, Romania—Comment

  • Ștefan Marincea EMAIL logo and Delia-Georgeta DumitraȘ
Published/Copyright: March 28, 2015
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American Mineralogist
From the journal American Mineralogist Volume 90 Issue 7

Abstract

In a recent work, Onac and White (2003) reported on berlinite, but also chlorellestadite and churchite, from the Bivouac Room, Cioclovina Cave, Romania. Our analyses of materials collected from this site failed to identify berlinite, chlorellestadite, or churchite. Due to the nature of the samples collected from the bat guano deposit at Cioclovina, many possible sources of confusion can occur. For example, separates from a mixture of taranakite, quartz, and minor illite could give the same analytical results as those reported by Onac and White (2003) for “berlinite„. For this reason, we consider that the occurrence of berlinite at Cioclovina, as well as the occurrence of other exotic species such as chlorellestadite or churchite, is not well enough substantiated and their report must be regarded with caution. Arguments to support this point of view are problems identified with the analytical techniques (EMPA, XRD), the failure of the experimental synthesis of berlinite in “dry„ conditions at atmospheric pressure, and the geochemical context from Cioclovina.

Received: 2004-4-13
Accepted: 2005-4-15
Published Online: 2015-3-28
Published in Print: 2005-7-1

© 2015 by Walter de Gruyter Berlin/Boston

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  1. A synthesis of systematic mineralogy
  2. Oxidation/alteration of pentlandite and pyrrhotite surfaces at pH 9.3: Part 1. Assignment of XPS spectra and chemical trends
  3. Oxidation of pentlandite and pyrrhotite surfaces at pH 9.3: Part 2. Effect of xanthates and dissolved oxygen
  4. X-ray Rietveld refinement and FTIR spectra of synthetic (Si,Ge)-richterites
  5. Influence of crystal chemistry on ideal plastic shear anisotropy in forsterite: First principle calculations
  6. High-temperature Mössbauer study of Fe-substituted mullite
  7. Pressure and temperature-dependence of water solubility in Fe-free wadsleyite
  8. Quartz exsolution in clinopyroxene is not proof of ultrahigh pressures: Evidence from eclogites from the Eastern Blue Ridge, Southern Appalachians, U.S.A.
  9. The visible and infrared spectral properties of jarosite and alunite
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  11. Compression of albite, NaAlSi3O8
  12. Effect of polymorphic transition on oxygen isotope fractionation between aragonite, calcite, and water: A low-temperature experimental study
  13. Effect of current density on the electron microprobe analysis of alkali aluminosilicate glasses
  14. A high-pressure polytypic transformation in type-I chlorite
  15. Experimental determination of crystal growth rates in highly supercooled aluminosilicate liquids: Implications for rate-controlling processes
  16. P-V equation of State, thermal expansion, and P-T stability of synthetic zincochromite (ZnCr2O4 spinel)
  17. Niksergievite, [Ba1.33Ca0.67Al(CO3)(OH)4][Al2(AlSi3O10)(OH)2]·nH2O, a new phyllosilicate related to the surite-ferrisurite series
  18. The crystal-chemistry of holmquistites: Ferroholmquistite from Greenbushes (Western Australia) and hints for compositional constraints in BLi amphiboles
  19. Dissakisite-(La) from the Ulten zone peridotite (Italian Eastern Alps): A new end-member of the epidote group
  20. Mazzite-Na, a new zeolite from Boron, California: Its description and crystal structure
  21. Low-temperature illitization of smectite in the late eocene and early oligocene of the Isle of Wight (Hampshire basin), U.K.
  22. First reported sedimentary occurrence of berlinite (AlPO4) in phosphate-bearing sediments from Cioclovina Cave, Romania—Comment
  23. Optical and near infrared spectra of ringwoodite to 21.5 GPa: Implications for radiative heat transport in the mantle
  24. Letter. Observation of nano-clustered calcite growth via a transient phase mediated by organic polyanions: A close match for biomineralization
  25. Letter. Aluminum coordination and the densification of high-pressure aluminosilicate glasses
  26. Letter. Crystal chemistry of a high-pressure C2/c clinopyroxene with six-coordinated silicon
https://doi.org/10.2138/am.2005.418

Articles in the same Issue

  1. A synthesis of systematic mineralogy
  2. Oxidation/alteration of pentlandite and pyrrhotite surfaces at pH 9.3: Part 1. Assignment of XPS spectra and chemical trends
  3. Oxidation of pentlandite and pyrrhotite surfaces at pH 9.3: Part 2. Effect of xanthates and dissolved oxygen
  4. X-ray Rietveld refinement and FTIR spectra of synthetic (Si,Ge)-richterites
  5. Influence of crystal chemistry on ideal plastic shear anisotropy in forsterite: First principle calculations
  6. High-temperature Mössbauer study of Fe-substituted mullite
  7. Pressure and temperature-dependence of water solubility in Fe-free wadsleyite
  8. Quartz exsolution in clinopyroxene is not proof of ultrahigh pressures: Evidence from eclogites from the Eastern Blue Ridge, Southern Appalachians, U.S.A.
  9. The visible and infrared spectral properties of jarosite and alunite
  10. Wakabayashilite, [(As,Sb)6S9][As4S5]: Crystal structure, pseudosymmetry, twinning, and revised chemical formula
  11. Compression of albite, NaAlSi3O8
  12. Effect of polymorphic transition on oxygen isotope fractionation between aragonite, calcite, and water: A low-temperature experimental study
  13. Effect of current density on the electron microprobe analysis of alkali aluminosilicate glasses
  14. A high-pressure polytypic transformation in type-I chlorite
  15. Experimental determination of crystal growth rates in highly supercooled aluminosilicate liquids: Implications for rate-controlling processes
  16. P-V equation of State, thermal expansion, and P-T stability of synthetic zincochromite (ZnCr2O4 spinel)
  17. Niksergievite, [Ba1.33Ca0.67Al(CO3)(OH)4][Al2(AlSi3O10)(OH)2]·nH2O, a new phyllosilicate related to the surite-ferrisurite series
  18. The crystal-chemistry of holmquistites: Ferroholmquistite from Greenbushes (Western Australia) and hints for compositional constraints in BLi amphiboles
  19. Dissakisite-(La) from the Ulten zone peridotite (Italian Eastern Alps): A new end-member of the epidote group
  20. Mazzite-Na, a new zeolite from Boron, California: Its description and crystal structure
  21. Low-temperature illitization of smectite in the late eocene and early oligocene of the Isle of Wight (Hampshire basin), U.K.
  22. First reported sedimentary occurrence of berlinite (AlPO4) in phosphate-bearing sediments from Cioclovina Cave, Romania—Comment
  23. Optical and near infrared spectra of ringwoodite to 21.5 GPa: Implications for radiative heat transport in the mantle
  24. Letter. Observation of nano-clustered calcite growth via a transient phase mediated by organic polyanions: A close match for biomineralization
  25. Letter. Aluminum coordination and the densification of high-pressure aluminosilicate glasses
  26. Letter. Crystal chemistry of a high-pressure C2/c clinopyroxene with six-coordinated silicon
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