Hostname: page-component-8448b6f56d-dnltx Total loading time: 0 Render date: 2024-04-19T01:18:25.027Z Has data issue: false hasContentIssue false
  • English
  • Français

Jeankempite, Ca5(AsO4)2(AsO3OH)2(H2O)7, a new arsenate mineral from the Mohawk Mine, Keweenaw County, Michigan, USA

Published online by Cambridge University Press:  25 November 2020

Travis A. Olds Open the ORCID record for Travis A. Olds [Opens in a new window] ,
Anthony R. Kampf ,
Fabrice Dal Bo ,
Peter C. Burns ,
Xiaofeng Guo  and
John S. McCloy Open the ORCID record for John S. McCloy [Opens in a new window]
Travis A. Olds*
Affiliation:
Section of Minerals and Earth Sciences, Carnegie Museum of Natural History, 4400 Forbes Avenue, Pittsburgh, Pennsylvania15213, USA
Anthony R. Kampf
Affiliation:
Mineral Sciences Department, Natural History Museum of Los Angeles County, 900 Exposition Boulevard, Los Angeles, CA90007, USA
Fabrice Dal Bo
Affiliation:
Department of Civil and Environmental Engineering and Earth Sciences, University of Notre Dame, Notre Dame, IN46556, USA
Peter C. Burns
Affiliation:
Department of Civil and Environmental Engineering and Earth Sciences, University of Notre Dame, Notre Dame, IN46556, USA Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN46556, USA
Xiaofeng Guo
Affiliation:
Department of Chemistry, Washington State University, Pullman, WA99163, USA
John S. McCloy
Affiliation:
Department of Chemistry, Washington State University, Pullman, WA99163, USA School of Mechanical and Materials Engineering, Washington State University, Pullman, WA, 99163, USA
*
*Author for correspondence: Travis A. Olds, Email: oldst@carnegiemnh.org
Get access Rights & Permissions [Opens in a new window]

Abstract

Jeankempite, Ca5(AsO4)2(AsO3OH)2(H2O)7, is a new mineral species (IMA2018-090) discovered amongst coatings of arsenate minerals on oxidised copper arsenides from the Mohawk No. 2 mine, Mohawk, Keweenaw County, Michigan, USA. The new mineral occurs as lamellar bundles of colourless to white plates up to 1 mm wide and is visually indistinguishable from guérinite, with which it forms intergrowths. Jeankempite is transparent to translucent with a waxy lustre and white streak, is non-fluorescent under longwave and shortwave ultraviolet illumination, has a Mohs hardness of ~1.5 and brittle tenacity with uneven fracture. Crystals are flattened on {01$\bar{1}$} and exhibit perfect cleavage on {01$\bar{1}$}. Optically, jeankempite is biaxial (+), α = 1.601(2), β = 1.607(2), γ = 1.619(2) (white light); 2Vmeas. = 72(2)° and 2Vcalc. = 71.0°. The empirical formula is (Ca4.97Na0.013Mg0.017)(As3.99S0.01)4O23H16, based on 23 O and 16 H atoms per formula unit. Thermogravimetric analysis indicates that jeankempite undergoes four weight losses totalling 16.82%, close to the expected loss of 16.30%, corresponding to eight H2O. Jeankempite is triclinic, P$\bar{1}$, a = 6.710(6), b = 14.901(14), c = 15.940(15) Å, α = 73.583(12)°, β = 81.984(12)°, γ = 82.754(12)°, V = 1507(2) Å3 and Z = 3. The final structure was refined to R1 = 0.0591 for 2781 reflections with Iobs > 3σI. The crystal structure of jeankempite is built from a network of edge- and vertex-sharing CaO6, CaO7 and AsO4 polyhedra, and we hypothesise that the new mineral has formed due to a topotactic reaction brought on by dehydration of preexisting guérinite.

Keywords

Jeankempitenew mineralarsenateguérinitetopotactic reactioncrystal structureMohawk mineMichiganUSA
Type
Article
Information
Mineralogical Magazine , Volume 84 , Issue 6 , December 2020 , pp. 959 - 969
Copyright
Copyright © The Author(s), 2020. Published by Cambridge University Press on behalf of The Mineralogical Society of Great Britain and Ireland

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.)

Footnotes

Associate Editor: Michael Rumsey

References

Amphalop, N., Suwantarat, N., Prueksasit, T., Yachusri, C. and Srithongouthai, S. (2020) Ecological risk assessment of arsenic, cadmium, copper, and lead contamination in soil in e-waste separating household area, Buriram Province, Thailand. Environmental Science and Pollution Research, https://doi.org/10.1007/s11356-020-10325-xCrossRefGoogle ScholarPubMed
Asante, K.A., Agusa, T., Biney, C.A., Agyekum, W.A., Bello, M., Otsuka, M., Itai, T., Takahashi, S. and Tanabe, S. (2012) Multi-trace element levels and arsenic speciation in urine of e-waste recycling workers from Agbogbloshie, Accra in Ghana. Science of The Total Environment, 424, 63–73.CrossRefGoogle ScholarPubMed
Bornhorst, T.J., Paces, J.B., Grant, N.K., Obradovich, J.D. and Huber, N.K. (1988) Age of native copper mineralization, Keweenaw Peninsula, Michigan. Economic Geology, 83, 619–625.CrossRefGoogle Scholar
Brown, A.C. (2006) Genesis of native copper lodes in the Keweenaw District, Northern Michigan: A hybrid evolved meteoric and metamorphogenic model. Economic Geology, 101, 1437–1444.CrossRefGoogle Scholar
Butler, B.S. and Burbank, W.S. (1929) The copper deposits of Michigan. pp. 238. U.S. Geological Survey Professional Paper 144. United State Government Printing Office, Washington, DC.Google Scholar
Catti, M. and Ferraris, G. (1974) Crystal structure of Ca5(HAsO4)2(AsO4)2⋅9H2O (guérinite). Acta Crystallographica, B30, 1789–1794.CrossRefGoogle Scholar
Catti, M. and Ivaldi, G. (1981) Mechanism of the reaction Ca5H2(AsO4)4⋅9 H2O (ferrarisite) → Ca5H2(AsO4)4⋅5H2O and structure of the latter phase. Zeitschrift für Kristallographie - Crystalline Materials, 157, 119–130.Google Scholar
Catti, M. and Ivaldi, G. (1983) On the topotactic dehydration Ca3(AsO4)2⋅11H2O (phaunouxite) → Ca3(AsO4)2⋅10H2O (rauenthalite), and the structures of both minerals. Acta Crystallographica, B39, 4–10.CrossRefGoogle Scholar
Cullen, W.R. and Reimer, K.J. (1989) Arsenic speciation in the environment. Chemical Reviews, 89, 713–764.CrossRefGoogle Scholar
Dyl, S.J. (2002) In memoriam: Jean Petermann Kemp Zimmer (1917–2001). Rocks & Minerals, 77, 420–421.CrossRefGoogle Scholar
Ferraris, G. and Ivaldi, G. (1988) Bond valence vs bond length in O⋅⋅⋅O hydrogen bonds. Acta Crystallographica Section, B44, 341–344.Google Scholar
Ferraris, G., Chiari, G. and Catti, M. (1980) The structure of ferrarisite, Ca5(HAsO4)2(AsO4)2⋅9H2O, disorder, hydrogen bonding and polymorphism with guérinite. Bulletin De Minéralogie, 541–546.Google 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
Günter, J.R. and Oswald, H.R. (1975) Attempt to a systematic classification of topotactic reactions. Bulletin of the Institute for Chemical Research, Kyoto University, 53, 249–255.Google Scholar
Gunter, M.E., Weaver, R., Bandli, B.R., Bloss, F.D., Evans, S.H. and Su, S.C. (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
Han, F.X., Su Y Fau - Monts, D.L., Monts Dl Fau - Plodinec, M.J., Plodinec Mj Fau - Banin, A., Banin A Fau - Triplett, G.E. and Triplett, G.E. (2003) Assessment of global industrial-age anthropogenic arsenic contamination. Naturwissenschaften, 90, 395–401.CrossRefGoogle ScholarPubMed
IUPAC (2005) Nomenclature of Inorganic Chemistry – IUPAC Recommendations 2005. International Union of Pure and Applied Chemistry (Connelly, N.G., Hartshorn, R.M., Damhus, T., Hutton, A.T., compilers). RSCPublishing, Cambridge, UK, 366 ppGoogle Scholar
Krause, L., Herbst-Irmer, R., Sheldrick, G.M. and Stalke, D. (2015) Comparison of silver and molybdenum microfocus X-ray sources for single-crystal structure determination. Journal of Applied Crystallography, 48, 3–10.CrossRefGoogle ScholarPubMed
Libowitzky, E. (1999) Correlation of O-H stretching frequencies and O-H⋅⋅⋅O hydrogen bond lengths in minerals. Monatshefte Für Chemie, 130, 1047–1059.CrossRefGoogle Scholar
Majzlan, J., Drahota, P. and Filippi, M. (2014) Parageneses and crystal chemistry of arsenic minerals. Pp. 17–184 in: Arsenic: Environmental Geochemistry, Mineralogy, and Microbiology (Bowell, R.J. Alpers, C.N. Jamicson, H.E. Nordstrom, K.D. and Majzlan, J., editors). Reviews in Mineralogy and Geochemistry, Vol. 79. Mineralogical Society of America, Washington, DC.Google Scholar
Makreski, P., Todorov, J., Makrievski, V., Pejov, L. and Jovanovski, G. (2018) Vibrational spectra of the rare-occurring complex hydrogen arsenate minerals pharmacolite, picropharmacolite, and vladimirite: dominance of Raman over IR spectroscopy to discriminate arsenate and hydrogen arsenate units. Journal of Raman Spectroscopy, 49, 747–763.CrossRefGoogle Scholar
Makreski, P., Todorov, J., Jovanovski, G., Stojanovska, M. and Petrushevski, G. (2019) Depicting the dehydration and dehydroxylation processes in very rare hydrogen arsenate minerals. Journal of Thermal Analysis and Calorimetry, 135, 2265–2276.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
Moore, P.B. (1962) Copper arsenides at Mohawk, Michigan. Rocks & Minerals, 37, 24–26.CrossRefGoogle Scholar
Moore, P.B. (1971) Copper-nickel arsenides of the Mohawk no. 2 mine, Mohawk, Keweenaw Co., Michigan. American Mineralogist, 56, 1319–1331.Google Scholar
Olds, T.A., Kampf, A.R., Dal Bo, F., Burns, P.C. and Guo, X. (2018) Jeankempite, IMA 2018-090. CNMNC Newsletter No. 46, December 2018, page 1373; Mineralogical Magazine, 82, 1369–1379.Google Scholar
Palatinus, L. and Chapuis, G. (2007) Superflip– a computer program for the solution of crystal structures by charge flipping in arbitrary dimensions. Journal of Applied Crystallography, 40, 786–790.CrossRefGoogle Scholar
Petříček, V., Dušek, M. and Palatinus, L. (2014) Crystallographic computing system Jana2006: General features. Zeitschrift Für Kristallographie, 229, 345–352.Google Scholar
Pouchou, J.L. and Pichoir, F. (1991) Quantitative analysis of homogeneous or stratified microvolumes applying the model “PAP”. Pp. 31–75 in: Electron Probe Quantitation (Heinrich, K.F.J. and Newbury, D.E., editors). Plenum Press, New York.CrossRefGoogle Scholar
Robinson, G.W. (2004) Mineralogy of Michigan by E.W. Heinrich. 2nd Edition. A.E. Seaman Mineral Museum, Michigan Technological University, Houghton, MI, 252 pp.Google Scholar
Smedley, P.L. and Kinniburgh, D.G. (2002) A review of the source, behaviour and distribution of arsenic in natural waters. Applied Geochemistry, 17, 517–568.CrossRefGoogle Scholar
WHO [World Health Organization] (2001) Environmental Health Criteria 224: Arsenic and Arsenic Compounds. 2nd ed.. INCHEM (Internationally Peer Reviewed Chemical Safety Information), WHO International Programme on Chemical Safety, Geneva.Google Scholar
Supplementary material: File

Olds et al. supplementary material

Olds et al. supplementary material

Download Olds et al. supplementary material(File)
File 44.7 KB