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Joëlbruggerite, Pb3Zn3(Sb5+,Te6+)As2O13(OH,O), the Sb5+ analog of dugganite, from the Black Pine mine, Montana

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Published/Copyright: April 1, 2015
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American Mineralogist
From the journal American Mineralogist Volume 94 Issue 7

Abstract

Joëlbruggerite, ideally Pb3Zn3(Sb5+,Te6+)As2O13(OH,O), is a new arsenate mineral (IMA 2008-034) and the Sb5+ analog of dugganite, from the Black Pine mine, 14.5 km northwest of Philipsburg, Granite County, Montana. It is usually found perched on mimetite; other species that may be present include malachite, azurite, pseudomalachite, chalcocite, beudantite-corkite, duftite, dugganite, and kuksite, in milky quartz veins. Joëlbruggerite occurs as barrel-shaped or prismatic crystals up to about 50 μm across in various shades of purple. The crystals have an adamantine luster and a white streak. Mohs hardness is about 3. The fracture is irregular, and the tenacity is brittle. Joëlbruggerite crystals are uniaxial (-), with a calculated refractive index of n = 1.993, and weakly pleochroic: X = Y = gray, Z = purple; absorption: Z > X = Y. Crystals show straight extinction and are length-fast. The empirical chemical formula (mean of 5 electron microprobe analyses) calculated on the basis of 14 [O + OH] anions is Pb3.112(Zn2.689Fe2+0.185)Σ2.874(Sb5+0.650Te6+0.451)Σ1.101(As1.551P0.203Si0.160)Σ1.914O13.335(OH)0.665. Joëlbruggerite is trigonal, space group P321, a = 8.4803(17), c = 5.2334(12) Å, V = 325.94(12) Å3, Z = 1. The five strongest lines in the powder X-ray diffraction pattern are [dobs in Å (I) (hkl)]: 3.298 (100) (111), 3.008 (89) (021), 1.905 (39) (122, 131), 2.456 (36) (012, 121, 030), and 1.609 (30) (112, 132, 231, 140). The crystal structure was solved from single-crystal X-ray diffraction data and refined to R1 = 0.038 on the basis of 604 unique reflections with F > 4σ(F). It is composed of heteropolyhedral sheets of edge-sharing (Sb,Te)O6 octahedra and PbO8 disphenoids, oriented parallel to (001). The sheets are cross-linked by AsO4 and ZnO4 tetrahedra, which share corners to form an interlinked, two- and threeconnected two-dimensional net parallel to (001). The mineral is named for Joël Brugger (born 1967), Swiss-Australian mineralogist, for his contributions to mineralogy.

Keywords : Joëlbruggerite; new mineral; Sb5+; arsenate; Black Pine mine; dugganite; crystal structure; bond valence
Received: 2008-11-5
Accepted: 2009-2-19
Published Online: 2015-4-1
Published in Print: 2009-7-1

© 2015 by Walter de Gruyter Berlin/Boston

Articles in the same Issue

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  3. Spectroscopic characteristics of synthetic olivine: An integrated multi-wavelength and multi-technique approach
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  9. Determination of the potential for extrinsic color development in natural colorless quartz
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  11. Phase behavior of protoenstatite at high pressure studied by atomistic simulations
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  14. Polarized infrared spectroscopic study of diffusion of water molecules along structure channels in beryl
  15. The vibrational spectrum of lizardite-1T [Mg3Si2O5(OH)4] at the Γ point: A contribution from an ab initio periodic B3LYP calculation
  16. Origins of Mount St. Helens cataclasites: Experimental insights
  17. The crystal structure and hydrogen bonding of synthetic konyaite, Na2Mg(SO4)2·5H2O
  18. Joëlbruggerite, Pb3Zn3(Sb5+,Te6+)As2O13(OH,O), the Sb5+ analog of dugganite, from the Black Pine mine, Montana
  19. Cathodoluminescence characterization of tridymite and cristobalite: Effects of electron irradiation and sample temperature
  20. Sequential extraction and DXRD applicability to poorly crystalline Fe- and Al-phase characterization from an acid mine water passive remediation system
  21. Thermoelasticity of ε-FeSi to 8 GPa and 1273 K
  22. Demicheleite-(Cl), BiSCl, a new mineral from La Fossa crater, Vulcano, Aeolian Islands, Italy
  23. Biomineralization associated with microbial reduction of Fe3+ and oxidation of Fe2+ in solid minerals
  24. Evidence for residual elastic strain in deformed natural quartz
  25. Mineralogy of mine waste at the Vermont Asbestos Group mine, Belvidere Mountain, Vermont
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https://doi.org/10.2138/am.2009.3141
Keywords for this article
Joëlbruggerite; new mineral; Sb5+; arsenate; Black Pine mine; dugganite; crystal structure; bond valence

Articles in the same Issue

  1. 27Al NMR spectroscopy at multiple magnetic fields and ab initio quantum modeling for kaolinite
  2. The effect of oxygen fugacity on the olivine to wadsleyite transformation: Implications for remote sensing of mantle redox state at the 410 km seismic discontinuity
  3. Spectroscopic characteristics of synthetic olivine: An integrated multi-wavelength and multi-technique approach
  4. Effects of hydration on thermal expansion of forsterite, wadsleyite, and ringwoodite at ambient pressure
  5. Forsterite, hydrous and anhydrous wadsleyite and ringwoodite (Mg2SiO4): 29Si NMR results for chemical shift anisotropy, spin-lattice relaxation, and mechanism of hydration
  6. Structural transitions and electron transfer in coffinite, USiO4, at high pressure
  7. Fe-Mg partitioning between perovskite and ferropericlase in the lower mantle
  8. Primitive oxygen-isotope ratio recorded in magmatic zircon from the Mid-Atlantic Ridge
  9. Determination of the potential for extrinsic color development in natural colorless quartz
  10. X-ray diffraction and Raman spectroscopic study of clinopyroxenes with six-coordinated Si in the Na(Mg0.5Si0.5)Si2O6-NaAlSi2O6 system
  11. Phase behavior of protoenstatite at high pressure studied by atomistic simulations
  12. Metasomatic replacement of inherited metamorphic monazite in a biotite-garnet granite from the Nízke Tatry Mountains, Western Carpathians, Slovakia: Chemical dating and evidence for disequilibrium melting
  13. Shear viscosity and diffusion in liquid MgSiO3: Transport properties and implications for terrestrial planet magma oceans
  14. Polarized infrared spectroscopic study of diffusion of water molecules along structure channels in beryl
  15. The vibrational spectrum of lizardite-1T [Mg3Si2O5(OH)4] at the Γ point: A contribution from an ab initio periodic B3LYP calculation
  16. Origins of Mount St. Helens cataclasites: Experimental insights
  17. The crystal structure and hydrogen bonding of synthetic konyaite, Na2Mg(SO4)2·5H2O
  18. Joëlbruggerite, Pb3Zn3(Sb5+,Te6+)As2O13(OH,O), the Sb5+ analog of dugganite, from the Black Pine mine, Montana
  19. Cathodoluminescence characterization of tridymite and cristobalite: Effects of electron irradiation and sample temperature
  20. Sequential extraction and DXRD applicability to poorly crystalline Fe- and Al-phase characterization from an acid mine water passive remediation system
  21. Thermoelasticity of ε-FeSi to 8 GPa and 1273 K
  22. Demicheleite-(Cl), BiSCl, a new mineral from La Fossa crater, Vulcano, Aeolian Islands, Italy
  23. Biomineralization associated with microbial reduction of Fe3+ and oxidation of Fe2+ in solid minerals
  24. Evidence for residual elastic strain in deformed natural quartz
  25. Mineralogy of mine waste at the Vermont Asbestos Group mine, Belvidere Mountain, Vermont
  26. Structural parameters of chromite included in diamond and kimberlites from Siberia: A new tool for discriminating ultramafic source
  27. Structure determination of the 2.5 hydrate MgSO4 phase by simulated annealing
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