Startseite Naturwissenschaften Rare occurrence of jarosite-alunite solid solutions with intermediate Al-Fe contents in the Jurassic Aztec Sandstone, Nevada, U.S.A
Artikel
Lizenziert
Nicht lizenziert Erfordert eine Authentifizierung

Rare occurrence of jarosite-alunite solid solutions with intermediate Al-Fe contents in the Jurassic Aztec Sandstone, Nevada, U.S.A

  • Thomas M. McCollom ORCID logo EMAIL logo , Sally L. Potter-McIntyre , Chris Donaldson , Andres Reyes , Bruce Moskowitz und Peter Solheid
Veröffentlicht/Copyright: 3. Oktober 2025
Veröffentlichen auch Sie bei De Gruyter Brill

Abstract

Experimental studies have demonstrated that solid solutions of minerals from the alunite group, with chemical compositions intermediate between the Al and Fe end-members, can be readily synthesized in the laboratory. In contrast, up until about a dozen years ago, there were no confirmed reports of alunite group minerals with intermediate Al-Fe compositions in natural settings, leading some to suggest that minerals with such compositions might not exist in nature. In recent years, however, alunite group minerals with intermediate Al-Fe compositions have been documented in a few isolated locations, which were previously limited to basalt-hosted acid-sulfate fumarole deposits and acid mine drainage pit lakes. These occurrences contrast with nearly all other reports of minerals from this group, whose measured chemical compositions are very close to either the Al or Fe end-members. Here, we report jarosite-alunite solid solutions containing approximately equal amounts of Al and Fe, which are found in mineralized fractures of the Aztec Sandstone in southeast Nevada. Analysis of the minerals by X-ray diffraction, Raman spectroscopy, and visible-near infrared spectroscopy confirms that they are bona fide solid solutions and not intimate mixtures of end-member minerals. This study represents the first documented occurrence of alunite group solid solutions with intermediate Al-Fe compositions in sedimentary rocks. The results further demonstrate that alunite group minerals with a wide range of Al-Fe compositions occur naturally and can persist for millions of years or more in natural systems.

References Cited

Alpers, C.N., Rye, R.O., Nordstrom, D.K., White, D.L., and King, B.-S. (1992) Chemical, crystallographic and stable isotopic properties of alunite and jarosite from acid-hypersaline Australian lakes. Chemical Geology, 96, 203–226, https://doi.org/10.1016/0009-2541(92)90129-S.Suche in Google Scholar

Amrani, A. (2014) Organosulfur compounds: Molecular and isotopic evolution from biota to oil and gas. Annual Review of Earth and Planetary Sciences, 42, 733–768, https://doi.org/10.1146/annurev-earth-050212-124126.Suche in Google Scholar

Basciano, L.C. and Peterson, R.C. (2007) Jarosite-hydronium jarosite solid-solution series with full iron site occupancy: Mineralogy and crystal chemistry. American Mineralogist, 92, 1464–1473, https://doi.org/10.2138/am.2007.2432.Suche in Google Scholar

Basciano, L.C. and Peterson, R.C. (2008) Crystal chemistry of the natrojarosite-jarosite and natrojarositehydronium jarosite solid-solution series: A synthetic study with full Fe site occupancy. American Mineralogist, 93, 853–862, https://doi.org/10.2138/am.2008.2731.Suche in Google Scholar

Bell, J.H. and Bowen, B.B. (2014) Fracture-focused fluid flow in an acid and redox-influenced system: Diagenetic controls on cement mineralogy and geomorphology in the Navajo Sandstone. Geofluids, 14, 251–265, https://doi.org/10.1111/gfl.12075.Suche in Google Scholar

Bell, J.H., Bowen, B.B., and Martini, B.A. (2010) Imaging spectroscopy of jarosite cement in the Jurassic Navajo Sandstone. Remote Sensing of Environment, 114, 2259–2270, https://doi.org/10.1016/j.rse.2010.05.002.Suche in Google Scholar

Berquó, T.S., Imbernon, R.A.L., Blot, A., Franco, D.R., Toledo, M.C.M., and Partiti, C.S.M. (2007) Low temperature magnetism and Mössbauer spectroscopy study from natural goethite. Physics and Chemistry of Minerals, 34, 287–294, https://doi.org/10.1007/s00269-007-0147-9.Suche in Google Scholar

Bishop, J.L. and Murad, E. (2005) The visible and infrared spectral properties of jarosite and alunite. American Mineralogist, 90, 1100–1107, https://doi.org/10.2138/am.2005.1700.Suche in Google Scholar

Bouzari, F. and Clark, A.H. (2002) Anatomy, evolution, and metallogenic significance of the supergene orebody of the Cerro Colorado porphyry copper deposit, I Región, Northern Chile. Economic Geology, 97, 1701–1740.Suche in Google Scholar

Brophy, G.P. and Sheridan, M.F. (1965) Sulfate studies IV: The jarosite-natrojarosite-hydronium jarosite solid solution series. American Mineralogist, 50, 1595–1607.Suche in Google Scholar

Brophy, G.P., Scott, E.S., and Snellgrove, R.A. (1962) Sulfate studies II: Solid solution between alunite and jarosite. American Mineralogist, 47, 112–126.Suche in Google Scholar

Burger, P.V., Papike, J.J., Shearer, C.K., and Karner, J.M. (2009) Jarosite growth zoning as a recorder of fluid evolution. Geochimica et Cosmochimica Acta, 73, 3248–3259, https://doi.org/10.1016/j.gca.2009.02.031.Suche in Google Scholar

Cao, F., Ling, Z., and Ni, Y. (2017) Chemical and spectroscopic investigations of K-H3O-Na jarosite solid solutions applicable for Mars explorations. Journal of Raman Spectroscopy, 48, 1544–1553, https://doi.org/10.1002/jrs.5222.Suche in Google Scholar

Chen, F., Turchyn, A.V., Kampman, N., Hodell, D., Gázquez, F., Maskell, A., and Bickle, M. (2016) Isotopic analysis of sulfur cycling and gypsum vein formation in a natural CO2 reservoir. Chemical Geology, 436, 72–83, https://doi.org/10.1016/j.chemgeo.2016.04.015.Suche in Google Scholar

Claypool, G.E., Holser, W.T., Kaplan, I.R., Sakai, H., and Zak, I. (1980) The age curves of sulfur and oxygen isotopes in marine sulfate and their mutual interpretation. Chemical Geology, 28, 199–260, https://doi.org/10.1016/0009-2541(80)90047-9.Suche in Google Scholar

Desborough, G.A., Smith, K.S., Lowers, H.A., Swayze, G.A., Hammarstrom, J.M., Diehl, S.F., Leinz, R.W., and Driscoll, R.L. (2010) Mineralogical and chemical characteristics of some natural jarosites. Geochimica et Cosmochimica Acta, 74, 1041–1056, https://doi.org/10.1016/j.gca.2009.11.006.Suche in Google Scholar

Deyell, C.L. and Dipple, G.M. (2005) Equilibrium mineral-fluid calculations and their application to solid solution between alunite and natroalunite in the El Indio-Pascua belt of Chile and Argentina. Chemical Geology, 215, 219–234, https://doi.org/10.1016/j.chemgeo.2004.06.039.Suche in Google Scholar

Drouet, C., Pass, K.L., Baron, D., Draucker, S., and Navrotsky, A. (2004) Thermochemistry of jarosite-alunite and natrojarosite-natroalunite solid solutions. Geochimica et Cosmochimica Acta, 68, 2197–2205, https://doi.org/10.1016/j.gca.2003.12.001.Suche in Google Scholar

Dutrizac, J.E. and Jambor, J.L. (2000) Jarosites and their application in hydrometallurgy. Reviews in Mineralogy and Geochemistry, 40, 405–452, https://doi.org/10.2138/rmg.2000.40.8.Suche in Google Scholar

Dyar, M.D., Breves, E., Jawin, E., Marchand, G., Nelms,M., O’Connor, V., Peel, S., Rothstein, Y., Sklute, E.C., Lane, M.D., and others. (2013) Mössbauer parameters of iron in sulfate minerals. American Mineralogist, 98, 1943–1965, https://doi.org/10.2138/am.2013.4604.Suche in Google Scholar

Ehlmann, B.L., Swayze, G.A., Milliken, R.E., Mustard, J.F., Clark, R.N., Murchie, S.L., Breit, G.N., Wray, J.J., Gondet, B., Poulet, F., and others. (2016) Discovery of alunite in Cross Crater, Terra Sirenum, Mars: Evidence for acidic, sulfurous waters. American Mineralogist, 101, 1527–1542, https://doi.org/10.2138/am-2016-5574.Suche in Google Scholar

Eichhubl, P., Taylor, W.L., Pollard, D.D., and Aydin, A. (2004) Paleo-fluid flow and deformation in the Aztec Sandstone at the Valley of Fire, Nevada —Evidence for the coupling of hydrologic, diagenetic, and tectonic processes. Geological Society of America Bulletin, 116, 1120–1136, https://doi.org/10.1130/B25446.1.Suche in Google Scholar

Flodin, E.A. and Aydin, A. (2004a) Evolution of a strike-slip fault network. Valley of Fire State Park. GSA Bulletin, 116, 42–59.Suche in Google Scholar

Flodin, E.A. and Aydin, A. (2004b) Faults with asymmetric damage zones in sandstone, Valley of Fire State Park, southern Nevada. Journal of Structural Geology, 26, 983–988, https://doi.org/10.1016/j.jsg.2003.07.009.Suche in Google Scholar

Frost, R.L., Wills, R.-A., Weier, M.L., and Martens, W. (2005) Comparison of the Raman spectra of natural and synthetic K- and Na-jarosites at 298 and 77 K. Journal of Raman Spectroscopy, 36, 435–444, https://doi.org/10.1002/jrs.1317.Suche in Google Scholar

Frost, R.L., Wills, R.-A., Weier, M.L., Martens, W., and Kloprogge, J.T. (2006) A Raman spectroscopic study of alunites. Journal of Molecular Structure, 785, 123–132, https://doi.org/10.1016/j.molstruc.2005.10.003.Suche in Google Scholar

Grigg, A.R.C., Notini, L., Kaegi, R., ThomasArrigo, L.K., and Kretzschmar, R. (2024) Structural effects of aluminum and iron occupancy in minerals of the jarosite-alunite solid solution. ACS Earth & Space Chemistry, 8, 194–206, https://doi.org/10.1021/acsearthspacechem.3c00174.Suche in Google Scholar

Härtig, C., Brand, P., and Bohmhammel, K. (1984) Fe-Al-Isomorphie und Strukturwasser in Kristallen vom Jarostie-Alunit-Typ. Zeitschrift für Anorganische und Allgemeine Chemie, 508, 159–164, https://doi.org/10.1002/zaac.19845080123.Suche in Google Scholar

Holley, E.A., Bissig, T., and Monecke, T. (2016) The Valdero high-sulfidation epithermal gold deposit, El Indio-Pascua Belt, Argentina: Geochronology of alunite and jarosite. Economic Geology and the Bulletin of the Society of Economic Geologists, 111, 311–330, https://doi.org/10.2113/econgeo.111.2.311.Suche in Google Scholar

Jambor, J.L. (1999) Nomenclature of the alunite supergroup. Canadian Mineralogist, 37, 1323–1341.Suche in Google Scholar

Juliani, C., Rye, R.O., Nunes, C.M.D., Snee, L.W., Corrêa Silva, R.H., Monteiro, L.V.S., Bettencourt, J.S., Neumann, R., and Alcover Neto, A. (2005) Paleoproterozoic high-sulfidation mineralization in the Tapajós gold province, Amazonian Craton, Brazil: Geology, mineralogy, alunite argon age, and stable-isotope constraints. Chemical Geology, 215, 95–125, https://doi.org/10.1016/j.chemgeo.2004.06.035.Suche in Google Scholar

Keith, K.J., Calk, L., and Ashley, R.P. (1979) Crystals of coexisting alunite and jarosite, Goldfield, Nevada. USGS Professional Paper 1124-C.Suche in Google Scholar

Klingelhöfer, G., Morris, R.V., Bernhardt, B., Schröder, C., Rodionov, D.S., de Souza, P.A. Jr., Yen, A., Gellert, R., Evlanov, E.N., Zubkov, B., and others. (2004) Jarosite and hematite at Meridiani Planum from Opportunity’s Mossbauer Spectrometer. Science, 306, 1740–1745, https://doi.org/10.1126/science.1104653.Suche in Google Scholar

Leask, E. K., Ehlmann, B.L., and Dundar, M. M. (2024) A2-billion-year history of water-alteration in Terra Sirenum, Mars: Volcanism’s influence on aluminum clay formation and chemically distinct waters forming sulfates and chlorides in the Amazonian. JGR: Planets, 129, e2023JE008259.Suche in Google Scholar

Long, D.T., Fegan, N.E., McKee, J.D., Lyons, W.B., Hines, M.E., and Macumber, P.G. (1992) Formation of alunite, jarosite and hydrous iron oxides in a hyper-saline system: Lake Tyrell, Victoria, Australia. Chemical Geology, 96, 183–202, https://doi.org/10.1016/0009-2541(92)90128-R.Suche in Google Scholar

McCollom, T.M. (2024) Chemical compositions of minerals from the alunite-jarosite group compiled from the literature. Zenodo, https://doi.org/10.5281/zenodo.10660117.Suche in Google Scholar

McCollom, T.M., Hynek, B.M., Rogers, K., Moskowitz, B., and Berquó, T.S. (2013a) Chemical and mineralogical trends during acid-sulfate alteration of pyroclastic basalt at Cerro Negro volcano and implications for early Mars. JRG: Planets, 118, 1719–1751, https://doi.org/10.1002/jgre.20114.Suche in Google Scholar

McCollom, T.M., Robbins, M., Moskowitz, B., Berquó, T.S., Jöns, N., and Hynek, B.M. (2013b) Experimental study of acid-sulfate alteration of basalt and implications for sulfate deposits on Mars. JGR: Solid Earth, 118, 1–38.Suche in Google Scholar

McCollom, T.M., Ehlmann, B.L., Wang, A., Hynek, B.M., and Berquó, T.S. (2014) Detection of iron substitution in natroalunite-natrojarosite solid solutions and potential implications for Mars. American Mineralogist, 99, 948–964, https://doi.org/10.2138/am.2014.4617.Suche in Google Scholar

Mills, S.J., Hatert, F., Nickel, E.H., and Ferraris, G. (2009) The standardization of mineral group hierarchies. European Journal of Mineralogy, 21, 1073–1080, https://doi.org/10.1127/0935-1221/2009/0021-1994.Suche in Google Scholar

Morales-Leal, J.E., Campos, E., Kouzmanov, K., and Riquelme, R. (2023) Alunite supergroup minerals from advanced argillic alteration assemblage in the southern Atacama Desert as indicators of paleo-hydrothermal and supergene environments. Mineralium Deposita, 58, 593–615, https://doi.org/10.1007/s00126-022-01149-5.Suche in Google Scholar

Morris, R.V., Klingelhöfer, G., Schröder, C., Rodionov, D.S., Yen, A., Ming, D.W., de Souza, P.A. Jr., Wdowiak, T., Fleischer, I., Gellert, R., and others. (2006) Mössbauer mineralogy of rock, soil, and dust at Meridiani Planum, Mars: Opportunity’s journey across sulfate-rich outcrop, basaltic sand and dust, and hematite lag deposits. Journal of Geophysical Research: Planets, 111, E12S15, https://doi.org/10.1029/2006JE002791.Suche in Google Scholar

Murad, E. and Johnston, J.H. (1987) Iron oxides and oxyhydroxides. In G.J. Long, Ed., Mössbauer Spectroscopy Applied to Inorganic Chemistry, p. 507–582. Plenum.Suche in Google Scholar

Orr, W.L. (1974) Changes in sulfur content and isotopic ratios of sulfur during petroleum maturation—Study of Big Horn Basin Paleozoic oils. The American Association of Petroleum Geologists Bulletin, 58, 2295–2318.Suche in Google Scholar

Papike, J.J., Karner, J.M., Spilde, M.N., and Shearer, C.K. (2006a) Terrestrial analogs of martian sulfates: Major and minor element systematics of alunitde-jarosite from Goldfield, Nevada. American Mineralogist, 91, 1197–1200, https://doi.org/10.2138/am.2006.2257.Suche in Google Scholar

Papike, J.J., Karner, J.M., and Shearer, C.K. (2006b) Comparative planetary mineralogy: Implications of martian and terrestrial jarosite. A crystal chemical perspective. Geochimica et Cosmochimica Acta, 70, 1309–1321, https://doi.org/10.1016/j.gca.2005.11.004.Suche in Google Scholar

Papike, J.J., Burger, P.V., Karner, J.M., Shearer, C.K., and Lueth, V.W. (2007) Terrestrial analogs of martian jarosites: Major, minor element systematics and Na-K zoning in selected samples. American Mineralogist, 92, 444–447, https://doi.org/10.2138/am.2007.2442.Suche in Google Scholar

Polyak, V.J. and Güven, N. (1996) Alunie, natroalunite and hydrated halloysite in Carlsbad Cavern and Lechuguilla Cave, New Mexico. Clays and Clay Minerals, 44, 843–850, https://doi.org/10.1346/CCMN.1996.0440616.Suche in Google Scholar

Potter-McIntyre, S.L. and McCollom, T.M. (2018) Jarosite and alunite in ancient terrestrial sedimentary rocks: Reinterpreting martian depositional and diagenetic environmental conditions. Life, 8, 32, https://doi.org/10.3390/life8030032.Suche in Google Scholar

Ripmeester, J.A., Ratcliffe, C.I., Dutrizac, J.E., and Jambor, J.L. (1986) Hydronium ion in the alunite-jarosite group. Canadian Mineralogist, 24, 435–447.Suche in Google Scholar

Rye, R.O. (2005) A review of the stable-isotope geochemistry of sulfate minerals in selected igneous environments and related hydrothermal systems. Chemical Geology, 215, 5–36, https://doi.org/10.1016/j.chemgeo.2004.06.034.Suche in Google Scholar

Sánchez-España, J., Yusta, I., Gray, W., and Burgos, W.D. (2016) Geochemistry of dissolved aluminum at low pH: Extent and significance of Al-Fe(III) coprecipitation below pH 4.0. Geochimica et Cosmochimica Acta, 175, 128–149, https://doi.org/10.1016/j.gca.2015.10.035.Suche in Google Scholar

Scott, K.M. (1987) Solid solution in, and classification of, gossan-derived members of the alunite-jarosite family, northwest Queensland, Australia. American Mineralogist, 72, 178–187.Suche in Google Scholar

Stoffregen, R.E. and Alpers, C.N. (1992) Observations on the unit-cell dimensions, H2O contents, and δD values of natural and synthetic alunite. American Mineralogist, 77, 1092–1098.Suche in Google Scholar

Stoffregen, R.E. and Cygan, G.L. (1990) An experimental study of Na-K exchange between alunite and aqueous sulfate solutions. American Mineralogist, 75, 209–220.Suche in Google Scholar

Stoffregen, R.E., Alpers, C.N., and Jambor, J.L. (2000) Alunite-jarosite crystallography, thermodynamics, and geochronology. Reviews in Mineralogy and Geochemistry, 40, 453–479, https://doi.org/10.2138/rmg.2000.40.9.Suche in Google Scholar

Talla, D. and Wildner, M. (2019) Investigation of the kieserite-szomolnokite solid-solution series, (Mg,Fe)SO4·H2O, with relevance to Mars: Crystal chemistry, FTIR, and Raman spectroscopy under ambient and martian temperature conditions. American Mineralogist, 104, 1732–1749, https://doi.org/10.2138/am-2019-6983.Suche in Google Scholar

Talla, D., Balla, M., Aicher, C., Lengauer, C.L., and Wildner, M. (2020) Structural and spectroscopic study of the kieserite-dwornikite solid-solution series, (Mg, Ni)SO4·H2O, at ambient and low temperatures, with cosmochemical implications for icy moons and Mars. American Mineralogist, 105, 1472–1489, https://doi.org/10.2138/am-2020-7287.Suche in Google Scholar

Taylor, W.L. and Pollard, D.D. (2000) Estimation of in situ permeability of deformation bands in porous sandstone, Valley of Fire, Nevada. Water Resources Research, 36, 2595–2606, https://doi.org/10.1029/2000WR900120.Suche in Google Scholar

Taylor, W.L., Pollard, D.D., and Aydin, A. (1999) Fluid flow in discrete joint sets: Field observations and numerical simulations. JGR: Solid Earth, 104, 28 983–29 006, https://doi.org/10.1029/1999JB900179.Suche in Google Scholar

van der Zee, C., Roberts, D.R., Rancourt, D.G., and Slomp, C.P. (2003) Nanogoethite is the dominant reactive oxyhydroxide phase in lake and marine sediments. Geology, 31, 993–996, https://doi.org/10.1130/G19924.1.Suche in Google Scholar

Vasconcelos, P.M., Brimhall, G.H., Becker, T.A., and Renne, P.R. (1994) 40Ar/39Ar analysis of supergene jarosite and alunite: Implications for the paleoweathering history of the western USA and West Africa. Geochimica et Cosmochimica Acta, 58, 401–420, https://doi.org/10.1016/0016-7037(94)90473-1.Suche in Google Scholar

Vegard, L. (1921) Die constitution der mischkristalle und die raumfüllung der atome. The European Physical Journal A, 5, 17–26, https://doi.org/10.1007/BF01349680.Suche in Google Scholar

Whitworth, A.J., Brand, H.E.A., Wilson, S.A., and Frierdich, A.J. (2020) Iron isotope geochemistry and mineralogy of jarosite in sulfur-rich sediments. Geochimica et Cosmochimica Acta, 270, 282–295, https://doi.org/10.1016/j.gca.2019.11.029.Suche in Google Scholar

Wray, J.J., Milliken, R.E., Dundas, C.M., Swayze, G.A., Andrews-Hanna, J.C., Baldridge, A.M., Chojnacki, M., Bishop, J.L., Ehlmann, B.L., Murchie, S.L., and others. (2011) Columbus crater and other possible groundwater-fed paleolakes of Terra Sirenum, Mars. JGR: Solid Earth, 116, E01001, https://doi.org/10.1029/2010JE003694.Suche in Google Scholar

Zhitova, E.S., Khanin, D.A., Nuzhdaev, A.A., Nazarova, M.A., Ismagilova, R.M., Shilovskikh, V.V., Kupchinenko, A.N., Kuznetsov, R.A., and Zhegunov, P.S. (2022) Efflorescent sulphates with M+ and M2+ cations from fumarole and active geothermal fields from Mutnovsky Volcano (Kamchatka, Russia). Minerals, 12, 600, https://doi.org/10.3390/min12050600.Suche in Google Scholar

Zimbelman, D.R., Rye, R.O., and Breit, G.N. (2005) Origin of secondary sulfate minerals on active andesitic stratovolcanoes. Chemical Geology, 215, 37–60, https://doi.org/10.1016/j.chemgeo.2004.06.056.Suche in Google Scholar

Zuo, P., Sun, J., Liu, X., Hao, J., and Li, Y. (2021) Two types of jarosite in the early Cambrian sedimentary rocks: Insights for genesis and transformation of jarosite on Mars. Icarus, 369, 114651, https://doi.org/10.1016/j.icarus.2021.114651.Suche in Google Scholar

Received: 2024-04-12
Accepted: 2025-02-14
Published Online: 2025-10-03
Published in Print: 2025-10-27

© 2025 Mineralogical Society of America

Artikel in diesem Heft

  1. Theoretical studies of thermodynamic and elastic properties of diamond under Earth’s mantle conditions
  2. Natrojarosite formed in the Matanomadh Formation, Kutch, India: A Na analog of jarosite on Mars
  3. Moxuanxueite, NaCa6Zr(Si2O7)2OF3, a new wöhlerite-group mineral from Gejiu alkaline complex, Yunnan Province, China
  4. EBSD mapping of Cu-Fe-sulfides reveals microstructures enriched in critical/precious metals and resolves deformation histories
  5. The sulfate-bearing associations of fumarolic environments of Somma-Vesuvius volcano (Italy): A review from historical samples (Royal Mineralogical Museum of Naples)
  6. Snowball quartz in highly fractionated peraluminous granites: An indicator of multiple magma degassing
  7. Oxybarometry of reduced silicate glasses: Using multivariate methods to constrain Cr oxidation states with application to lunar glasses
  8. Nigelcookite, PbFe22+V23+(PO4)3(OH)3,and plumbojohntomaite, PbFe22+Fe23+(PO4)3(OH)3,two new members of the bjarebyite group from the Yushui Cu deposit, South China
  9. Rare occurrence of jarosite-alunite solid solutions with intermediate Al-Fe contents in the Jurassic Aztec Sandstone, Nevada, U.S.A
  10. Olgafrankite, Ni3Ge, a new mineral as the carrier of siderophile germanium in reduced systems
  11. Fuyuanite [Mg7Nb6O18(OH)8], a new hydrous magnesic-niobic oxide mineral from the Bayan Obo deposit, China
  12. Laboratory synthesis, spectroscopic characteristics, and thermal behavior of phoxite
  13. Sublattice disorder and Fe-Mg substitution in brucite: Implications for the subduction-zone water cycle
  14. On the labyrinthine crystal-chemistry of boleite, a Pb-Ag-Cu hydroxyhalide
  15. Book Review
  16. Book Review: Exoplanets: Compositions, Mineralogy, Evolution
Heruntergeladen am 7.3.2026 von https://www.degruyterbrill.com/document/doi/10.2138/am-2024-9423/html
Button zum nach oben scrollen