Hostname: page-component-6766d58669-6mz5d Total loading time: 0 Render date: 2026-05-18T20:05:35.594Z Has data issue: false hasContentIssue false
  • English
  • Français

Hagstromite, Pb8Cu2+(Te6+O6)2(CO3)Cl4, a new lead–tellurium oxysalt mineral from Otto Mountain, California, USA

Published online by Cambridge University Press:  27 April 2020

Anthony R. Kampf Open the ORCID record for Anthony R. Kampf [Opens in a new window] ,
Robert M. Housley ,
Stuart J. Mills ,
George R. Rossman  and
Joe Marty
Anthony R. Kampf*
Affiliation:
Mineral Sciences Department, Natural History Museum of Los Angeles County, 900 Exposition Blvd., Los Angeles, CA 90007, USA
Robert M. Housley
Affiliation:
Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125, USA
Stuart J. Mills
Affiliation:
Geosciences, Museums Victoria, GPO Box 666, Melbourne 3001, Victoria, Australia
George R. Rossman
Affiliation:
Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125, USA
Joe Marty
Affiliation:
5199 E. Silver Oak Road, Salt Lake City, UT 84108, USA
*
*Author for correspondence: Anthony R. Kampf, Email: akampf@nhm.org
Get access Rights & Permissions [Opens in a new window]

Abstract

Hagstromite, Pb8Cu2+(Te6+O6)2(CO3)Cl4, (IMA2019-093) is a new tellurate mineral from Otto Mountain near Baker, California, USA. It occurs on quartz in association with cerussite, fuettererite and thorneite. It is a secondary oxidation zone mineral and is presumed to have formed by oxidation of earlier formed tellurides, chalcopyrite and galena. Hagstromite occurs as light yellow–green blades, up to ~100 μm long. Crystals are transparent with adamantine to silky lustre. The mineral is brittle with two cleavages providing splintery fracture; the Mohs hardness is probably between 2 and 3. The calculated density is 7.062 g cm–3. Hagstromite is optically biaxial (+), with calculated indices of refraction for α = 2.045, β = 2.066 and γ = 2.102; 2Vmeas = 76(1)°; and optical orientation X = b, Y = a and Z = c. The Raman spectrum of hagstromite exhibits similarities with those of agaite and thorneite and confirms the presence of CO32–. The electron microprobe analyses provided the empirical formula Pb8.07Cu2+0.98Te6+1.96C1.17Cl3.83O15.34. Hagstromite is orthorhombic, space group Ibam, with a = 23.688(17), b = 9.026(8), c = 10.461(8) Å, V = 2237(3) Å3 and Z = 4. The crystal structure of hagstromite (R1 = 0.0659 for 284 I > 2σI reflections) contains a novel Cu2+Te6+2O12 chain assembled of corner-sharing Cu2+O4 squares and Te6+O6 octahedra. The O atoms in the chains form bonds with Pb2+ cations, which in turn bond to Cl– and CO32– anions, thereby creating a framework structure.

Keywords

hagstromitenew mineraltelluratecrystal structureRaman spectroscopyOtto MountainCaliforniaUSA

Information

Type
Article
Information
Mineralogical Magazine , Volume 84 , Issue 4 , August 2020 , pp. 517 - 523
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 2020

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable

Footnotes

Associate Editor: Oleg I. Siidra

References

Blasse, G. and Hordijk, W. (1972) The vibrational spectrum of Ni3TeO6 and Mg3TeO6. Journal of Solid State Chemistry, 5, 395–397.CrossRefGoogle Scholar
Christy, A.G., Mills, S.J., Kampf, A.R., Housley, R.M., Thorne, B. and Marty, J. (2016) The relationship between mineral composition, crystal structure and paragenetic sequence: the case of secondary Te mineralization at Otto Mountain, California, USA. Mineralogical Magazine, 80, 291‒310.CrossRefGoogle Scholar
Frikha, H., Abdelhedi, M., Dammak, M. and Garcia-Granda, S. (2017) Structural single crystal, thermal analysis and vibrational studies of the new rubidium phosphate tellurate Rb2HPO4RbH2PO4⋅Te(OH)6. Journal of Saudi Chemical Society, 21, 324–333.CrossRefGoogle Scholar
Frost, R.L. (2009) Tlapallite H6(Ca,Pb)2(Cu,Zn)3SO4(TeO3)4TeO6, a multi-anion mineral: a Raman spectroscopic study. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 72, 903–906.CrossRefGoogle Scholar
Frost, R.L. and Keeffe, E.C. (2009) Raman spectroscopic study of kuranakhite PbMn4+Te6+O6 – a rare tellurate mineral. Journal of Raman Spectroscopy, 40, 249–252.CrossRefGoogle Scholar
Gagné, O.C. and Hawthorne, F.C (2015) Comprehensive derivation of bond–valence parameters for ion pairs involving oxygen. Acta Crystallographica, B71, 562–578.Google Scholar
Gunter, M.E., Bandli, B.R., Bloss, F.D., Evans, S.H., Su, S.C., and Weaver, R. (2004) Results from a McCrone spindle stage short course, a new version of EXCALIBR, and how to build a spindle stage. The Microscope, 52, 23–39.Google Scholar
Higashi, T. (2001) ABSCOR. Rigaku Corporation, Tokyo.Google Scholar
Housley, R. M., Kampf, A. R., Mills, S.J., Marty, J. and Thorne, B. (2011) The remarkable occurrence of rare secondary tellurium minerals at Otto Mountain near Baker, California – including seven new species. Rocks and Minerals, 86, 132–142.CrossRefGoogle Scholar
Kampf, A.R., Housley, R.M., Mills, S.J., Marty, J. and Thorne, B. (2010a) Lead–tellurium oxysalts from Otto Mountain near Baker, California: I. Ottoite, Pb2TeO5, a new mineral with chains of tellurate octahedra. American Mineralogist, 95, 1329–1336.CrossRefGoogle Scholar
Kampf, A.R., Housley, R.M. and Marty, J. (2010b) Lead–tellurium oxysalts from Otto Mountain near Baker, California: III. Thorneite, Pb6(Te2O10)(CO3)Cl2(H2O), the first mineral with edge–sharing octahedral dimers. American Mineralogist, 95, 1548–1553.CrossRefGoogle Scholar
Kampf, A.R., Mills, S.J., Housley, R M., Marty, J. and Thorne, B. (2010c) Lead–tellurium oxysalts from Otto Mountain near Baker, California: V. Timroseite, Pb2Cu2+5(Te6+O6)2(OH)2, and paratimroseite, Pb2Cu2+4(Te6+O6)2(H2O)2, new minerals with edge-sharing Cu–Te octahedral chains. American Mineralogist, 95, 1560–1568.CrossRefGoogle Scholar
Kampf, A.R., Mills, S.J., Housley, R.M. and Marty, J. (2013a) Lead–tellurium oxysalts from Otto Mountain near Baker, California: VIII. Fuettererite, Pb3Cu2+6Te6+O6(OH)7Cl5, a new mineral with double spangolite–type sheets. American Mineralogist, 98, 506–511.CrossRefGoogle Scholar
Kampf, A.R., Mills, S.J., Housley, R.M. and Marty, J. (2013b) Lead–tellurium oxysalts from Otto Mountain near Baker, California: IX. Agaite, Pb3Cu2+Te6+O5(OH)2(CO3), a new mineral with CuO5–TeO6 polyhedral sheets. American Mineralogist, 98, 512–517.CrossRefGoogle Scholar
Kampf, A.R., Housley, R.M., Mills, S.J., Rossman, G.R. and Marty, J. (2020) Hagstromite, IMA 2019-093. CNMNC Newsletter No. 53; Mineralogical Magazine, 84, 159–163.Google Scholar
Krivovichev, S.V. (2012) Derivation of bond–valence parameters for some cation–oxygen pairs on the basis of empirical relationships between r o and b. Zeitschrift für Kristallographie, 227, 575–579.CrossRefGoogle Scholar
Mandarino, J.A. (2007) The Gladstone–Dale compatibility of minerals and its use in selecting mineral species for further study. The Canadian Mineralogist, 45, 1307–1324.CrossRefGoogle Scholar
Mills, S.J. and Christy, A.G. (2013) Revised values of the bond valence parameters for TeIV–O, TeVI–O and TeIV–Cl. Acta Crystallographica, B69, 145–149.CrossRefGoogle Scholar
Mills, S.J., Kampf, A.R., Christy, A.G., Housley, R.M., Thorne, B., Chen, Y.-S. and Steele, I.M. (2014) Favreauite, a new selenite mineral from the El Dragón mine, Bolivia. European Journal of Mineralogy, 25, 771–781.CrossRefGoogle Scholar
Mills, S.J., Kampf, A.R., Momma, K., Housley, R.M. and Marty, J. (2020) Müllerite, the Fe-analogue of backite from the Otto Mountain mines, USA. The Canadian Mineralogist, 58, https://doi.org/10.3749/canmin.2000026CrossRefGoogle Scholar
Missen, O.P., Kampf, A.R., Mills, S.J., Housley, R., Spratt, J., Welch, M.D., Coolbaugh, M.F., Marty, J., Chorazewicz, M. and Ferraris, C. (2019) The crystal structure of the mixed–valence tellurium oxysalt mineral tlapallite, (Ca,Pb)3CaCu6Te6+2O6(Te4+O3)8(SO4)2⋅3H2O and an updated structure of carlfriesite, CaTe4+2Te6+O8. Mineralogical Magazine, 83, 539–549.CrossRefGoogle Scholar
Sheldrick, G.M. (2015a) SHELXT – Integrated space-group and crystal-structure determination. Acta Crystallographica, A71, 3–8.Google Scholar
Sheldrick, G.M. (2015b) Crystal structure refinement with SHELXL. Acta Crystallographica, C71, 3–8.Google Scholar
Supplementary material: File

Kampf et al. Supplementary Materials

Kampf et al. Supplementary Materials

Download Kampf et al. Supplementary Materials(File)
File 82.1 KB