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Mendozite

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About MendoziteHide

09683180015702715897852.jpg
Flag of Mendoza province, Argentina
Formula:
NaAl(SO4)2 · 11H2O
Colour:
Colourless (turns white upon exposure); colourless in transmitted light.
Hardness:
3
Crystal System:
Monoclinic
Name:
Named after the province of Mendoza, Argentina, that includes the supposed type locality of St. Juan.

Closely related to the members of the Alum Group.


Classification of MendoziteHide

Approved, 'Grandfathered' (first described prior to 1959)
7.CC.15

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
C : Sulfates (selenates, etc.) without additional anions, with H2O
C : With medium-sized and large cations
29.5.4.1

29 : HYDRATED ACID AND NORMAL SULFATES
5 : AB(XO4)2·xH2O
25.6.13

25 : Sulphates
6 : Sulphates of Al and Tl

Physical Properties of MendoziteHide

Transparency:
Transparent
Colour:
Colourless (turns white upon exposure); colourless in transmitted light.
Hardness:
Cleavage:
Distinct/Good
{100}, good; {001} and {010}, indistinct.

Optical Data of MendoziteHide

Type:
Biaxial (-)
RI values:
nα = 1.449 nβ = 1.461 nγ = 1.463
2V:
Measured: 56° , Calculated: 44°
Max Birefringence:
δ = 0.014
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
r > v distinct

Chemical Properties of MendoziteHide

Formula:
NaAl(SO4)2 · 11H2O

Crystallography of MendoziteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Cell Parameters:
a = 21.75 Å, b = 9.1 Å, c = 8.29 Å
β = 92.47°
Ratio:
a:b:c = 2.39 : 1 : 0.911
Unit Cell V:
1,639.27 ų (Calculated from Unit Cell)
Morphology:
Artificial crystals are prismatic [001] with large {100}; also pseudo-rhombohedral with {100} and {_211}. Fibrous masses.

Type Occurrence of MendoziteHide

Synonyms of MendoziteHide

Other Language Names for MendoziteHide

Related Minerals - Nickel-Strunz GroupingHide

7.CC.CobaltoblöditeNa2Co(SO4)2•4H2OMon. 2/m : P21/b
7.CC.AndychristyitePbCu2+Te6+O5(H2O)Tric. 1 : P1
7.CC.Ammoniovoltaite(NH4)2Fe2+5Fe3+3Al(SO4)12(H2O)18Iso. m3m (4/m 3 2/m) : Fd3c
7.CC.05KrausiteKFe(SO4)2 · H2OMon. 2/m : P21/m
7.CC.10TamarugiteNaAl(SO4)2 · 6H2OMon. 2/m
7.CC.15KaliniteKAl(SO4)2 · 11H2OMon. 2/m : B2/b
7.CC.20Lonecreekite(NH4)Fe3+(SO4)2 · 12H2OIso.
7.CC.20Alum-(K)KAl(SO4)2 · 12H2OIso. m3 (2/m 3) : Pa3
7.CC.20Alum-(Na)NaAl(SO4)2 · 12H2O
7.CC.20Tschermigite(NH4)Al(SO4)2 · 12H2OIso. m3 (2/m 3) : Pa3
7.CC.20LanmuchangiteTl+Al(SO4)2 · 12H2OIso. m3 (2/m 3) : Pa3
7.CC.25VoltaiteK2Fe2+5Fe3+3Al(SO4)12 · 18H2OIso. m3m (4/m 3 2/m) : Fd3c
7.CC.25ZincovoltaiteK2Zn5Fe3+3Al(SO4)12 · 18H2OIso. m3m (4/m 3 2/m) : Fd3c
7.CC.25PertlikiteK2(Fe2+,Mg)2Mg4Fe3+2Al(SO4)12 · 18H2OTet. 4/mmm (4/m 2/m 2/m) : I41/acd
7.CC.25Ammoniomagnesiovoltaite(NH4)2Mg2+5Fe3+3Al(SO4)12 · 18H2OIso. m3m (4/m 3 2/m) : Fd3c
7.CC.30KröhnkiteNa2Cu(SO4)2 · 2H2OMon. 2/m : P21/b
7.CC.35FerrinatriteNa3Fe(SO4)3 · 3H2OTrig. 3 : P3
7.CC.40GoldichiteKFe(SO4)2 · 4H2OMon. 2/m : P21/b
7.CC.45LöweiteNa12Mg7(SO4)13 · 15H2OTrig.
7.CC.50BlöditeNa2Mg(SO4)2 · 4H2OMon. 2/m
7.CC.50NickelblöditeNa2(Ni,Mg)(SO4)2 · 4H2O
7.CC.50ChangoiteNa2Zn(SO4)2 · 4H2OMon. 2/m : P21/b
7.CC.55LeoniteK2Mg(SO4)2 · 4H2OMon. 2/m
7.CC.55MereiteriteK2Fe(SO4)2 · 4H2OMon.
7.CC.60Boussingaultite(NH4)2Mg(SO4)2 · 6H2OMon. 2/m : P21/b
7.CC.60CyanochroiteK2Cu(SO4)2 · 6H2OMon. 2/m
7.CC.60Mohrite(NH4)2Fe(SO4)2 · 6H2OMon. 2/m : P21/b
7.CC.60Nickelboussingaultite(NH4)2Ni(SO4)2 · 6H2O
7.CC.60PicromeriteK2Mg(SO4)2 · 6H2OMon. 2/m
7.CC.65PolyhaliteK2Ca2Mg(SO4)4 · 2H2OTric. 1
7.CC.70LeightoniteK2Ca2Cu(SO4)4 · 2H2OTric.
7.CC.75AmarilliteNaFe(SO4)2 · 6H2OMon. 2/m : B2/b
7.CC.80KonyaiteNa2Mg(SO4)2 · 5H2OMon. 2/m : P21/b
7.CC.85WattevilleiteNa2Ca(SO4)2 · 4H2O (?)Orth.

Related Minerals - Dana Grouping (8th Ed.)Hide

29.5.4.2KaliniteKAl(SO4)2 · 11H2OMon. 2/m : B2/b

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

25.6.1RostiteAl(SO4)(OH) · 5H2OOrth. mmm (2/m 2/m 2/m)
25.6.2JurbaniteAl(SO4)(OH) · 5H2OMon.
25.6.3KhademiteAl(SO4)F · 5H2OOrth. mmm (2/m 2/m 2/m)
25.6.4Meta-aluminiteAl2(SO4)(OH)4 · 5H2O
25.6.5AluminiteAl2(SO4)(OH)4 · 7H2OMon. 2/m : P21/b
25.6.6Meta-alunogenAl2(SO4)3 · 12H2O
25.6.7AlunogenAl2(SO4)3 · 17H2OTric. 1
25.6.8FelsőbányaiteAl4(SO4)(OH)10 · 4H2OMon. 2 : P21
25.6.9BasaluminiteAl4(SO4)(OH)10 · 4H2OHex.
25.6.10HydrobasaluminiteAl4(SO4)(OH)10 · 12-36H2OMon.
25.6.11ZaheriteAl12(SO4)5(OH)26 · 20H2OTric.
25.6.12TamarugiteNaAl(SO4)2 · 6H2OMon. 2/m
25.6.14Alum-(Na)NaAl(SO4)2 · 12H2O
25.6.15NatroaluniteNaAl3(SO4)2(OH)6Trig. 3m : R3m
25.6.16KaliniteKAl(SO4)2 · 11H2OMon. 2/m : B2/b
25.6.17Alum-(K)KAl(SO4)2 · 12H2OIso. m3 (2/m 3) : Pa3
25.6.18AluniteKAl3(SO4)2(OH)6Trig. 3m : R3m
25.6.19Natroalunite-2c(Na,Ca0.5,K)Al3(SO4)2(OH)6Trig. 3m (3 2/m) : R3m
25.6.20Tschermigite(NH4)Al(SO4)2 · 12H2OIso. m3 (2/m 3) : Pa3

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for MendoziteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Thomson (1828) Annals Lyceum Natural History, New York: 3: 19 (as native Soda-Alum).
Dana, J.D., Brush, G.J. (1868) 677. Mendozite. in A System of Mineralogy, Fifth Edition, John Wiley and Sons (New York): 653-653.
Divers, E. (1881) On the sodium alum of Japan. Chemical News and Journal of Industrial Science, London: 44: 218-219.
Soret (1884) Notices cristallographique. Arch. sc. phys. nat. Genève: 11: 63.
Krickmeyer, R. (1896) Beiträge zum isomorphismus der alkalisalze. Zeitschrift für Physikalische Chemie: 21: 53-89(78). https://doi.org/10.1515/zpch-1896-2106
Surganov (1909) Academy of Sciences St. Petersburg, Bull.: 3: 1057.
Mellor (1924) 5: 342.
Dobbins, J.T. and Addleston, J.A. (1935) A study of the soda-alum system. Journal of Physical Chemistry: 39: 637-647. DOI: 10.1021/j150365a007
Lipson, H. (1935) The relation between the alum structures. Proceedings of the Royal Society London: 151A: 347. https://doi.org/10.1098/rspa.1935.0154
Keller, W.D. (1935) The occurrence of mendozite and tamarugite in Missouri. American Mineralogist: 20: 537-539.
Bandy, M.C. (1938) Mineralogy of three sulphate deposits of northern Chile. American Mineralogist: 23(11): 669-760 (722).
Palache, C., Berman, H., and Frondel, C. (1951) The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged, 1124 pp.: 469.
Nordstrom, D.K., Robinson, P.D. and Fang, J.H. (1969) Synthesis, stoichiometry and crystallography of mendozite. Zeitschrift für Kristallographie - Crystalline Materials: 129(5-6): 458-458. https://doi.org/10.1524/zkri.1969.129.5-6.458
Fang, J.H. and P.D. Robinson (1972) Crystal structures and mineral chemistry of double-salt hydrates: II. The crystal structure of mendozite, NaAl(SO4)2•11H2O. American Mineralogist: 37: 1082–1088.

Internet Links for MendoziteHide

Localities for MendoziteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Argentina (TL)
 
  • Mendoza Province
Am Min 57:1081 (1972)
  • San Juan Province
    • Iglesia Department
Angelelli, V., Brodtkorb, M.K. de, Gordillo, C.E. y Gay, H.D. (1983). Las Especies Minerales de la República Argentina. Subsecretaría de Minería. Publicación Especial. 528 pp.
Canada
 
  • British Columbia
    • Kamloops Mining Division
Schmetzer, K. & Medenbach, O. (1983): Challantite from Cache Creek, British Columbia, Canada - a second occurrence. Neues Jahrbuch für Mineralogie, Monatshefte 1983, 158-162.
Chile
 
  • Antofagasta
    • El Loa Province
      • Calama
        • Chuquicamata District
R.B. Cook: "Famous mineal locality; Chuquicamata, Chile": Mineralogical Record, sept.-oct. 1973
  • Tarapacá
    • Tamarugal Province
      • Pampa del Tamarugal
Peter G. Seroka collection
Costa Rica
 
  • Cartago Province
    • Irazú Volcano
Ulloa, A., Gázquez, F., Sanz Arranz, A., Medina García, J., Rull Pérez, F., Calaforra, J. M., ... & De Waele, J. (2018). Extremely high diversity of sulfate minerals in caves of the Irazú Volcano (Costa Rica) related to crater lake and fumarolic activity.
Germany
 
  • North Rhine-Westphalia
    • Arnsberg
      • Märkischer Kreis
        • Iserlohn
          • Letmathe
Bender, D. and Krimmelbein, W. (1994) Aktuelle Übersicht: Mineralien der Zinkhütte Genna/Sauerland. Stand Juni 1994. Mineralien-Welt, 4/94, 10.
    • The Ruhr
      • Herne
Weiss, S. (1990) Mineralfundstellen Atlas, Deutschland West. Weise Verlag, München, 320 pages.
Hungary
 
  • Heves County
    • Recsk
ACTA MIN. PETR. Suppl. Tomus XXXVIII., 1997
Szakáll & Jánosi: Minerals of Hungary, 1995
Italy
 
  • Campania
    • Naples
      • Pozzuoli
http://70.1911encyclopedia.org/V/VO/VOLCANO.htm.
  • Sicily
    • Messina Province
      • Eolie Islands (Aeolian Islands)
        • Lipari
          • Vulcano Island
PANICHI U. (1924): Contributo allo studio dei minerali dell'Isola di Vulcano. - Memorie della Società Italiana delle Scienze (detta dei XL) - serie 3 - 19, 3-55.
            • Porto Levante
              • Faraglioni di Levante (Grotte dei Faraglioni; Grotte del Faraglione; "Grotte de Faraglione")
                • Faraglione Nico (Faraglione Piccolo; Faragghiune Nicu)
P.Forti, M.Panzica La Manna and A.Rossi (1994) The peculiar mineralogic site of the Alum cave (Vulcano, Sicily). Proceedings of the 7th International Symposium on Vulcanospeleology November 1994 p.35-44.
Japan
 
  • Shimane
Divers, E. (1881) On the sodium alum of Japan. Chemical News and Journal of Industrial Science, London: 44: 218-219.
New Zealand
 
  • Manawatu-Wanganui Region
    • Ruapehu District
      • Tongariro National Park
Johnstone, R.D. (1979) Fumarole Incrustations and Some Aspects of the Thermal Alteration at Ketetahi, Mount Tongariro, New Zealand. Geothermal Institute, University of Auckland, New Zealand.
Nicaragua
 
  • León Department
    • Cerro Negro volcano
Hynek, B. M., McCollom, T. M., Marcucci, E. C., Brugman, K. K., & Rogers, K. L. (2013, March). Assessing environmental controls on acid-sulfate alteration at active volcanoes in Nicaragua: applications to relic hydrothermal systems on mars. In 44th Lunar and Planetary Science Conference, March (pp. 18-22).
    • Momotombo volcano
Hynek, B. M., McCollom, T. M., Marcucci, E. C., Brugman, K., & Rogers, K. L. (2013). Assessment of environmental controls on acid‐sulfate alteration at active volcanoes in Nicaragua: Applications to relic hydrothermal systems on Mars. Journal of Geophysical Research: Planets, 118(10), 2083-2104.
Norway
 
  • Oppland
Selbekk, R. S., Husdal, T. A. & Berg, H-J. (2010): Nye mineraler for Norge i 2010. Stein. 37 (4): 24-26
    • Ringebu
      • Fåvang
Broch, O.A. (1931): Pickeringite from Fåvang. Norsk Geologisk Tidsskrift. 12: 117-121
Senegal
 
  • Ziguinchor Region
Montoroi, J. P. (1995) Mise eli évidence d'une séquence de précipitation des sels dails les sols sulfatés acides d'une vallée aménagée de Basse-Casamance (Sénégal). C.R. Acad. Sci. Paris, t. 320, série II a, p. 395-402
Slovakia
 
  • Banská Bystrica Region
    • Žiar nad Hronom Co.
Ďuďa R., 1993 : Die mineralien der Gold und Silber - lagersttäte von Kremnitz ( Kremnica) in der Slowakei. Mineralien Welt /Haltern,Nemecko/,5, s. 20 - 32
USA
 
  • California
    • Amador Co.
      • Volcano Mining District
        • Volcano
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 257, 259.
    • Napa Co.
      • Yountville
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 259.
    • San Bernardino Co.
      • Hidden Springs
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 259.
  • Colorado
    • Eagle Co.
      • Gilman Mining District (Battle Mountain Mining District; Red Cliff Mining District)
Minerals of Colorado (1997) E.B. Eckel
  • Georgia
    • Rabun Co.
Minerals of Georgia: Their properties and occurrences. Robert Cook GGWRD Bull 92
AmMin. 20:229
    • Callaway Co.
      • Fulton
Rocks & Min., March 1998.
    • St. Louis Co.
Sherwood, M. D., & Williams, G. A. (1998). Missouri mineral locality index. Rocks & Minerals, 73(2), 98-117.
  • Nevada
    • Esmeralda Co.
NBMG Spec. Pub. 31 Minerals of Nevada
  • New Mexico
    • Guadalupe Co.
Northrop, Minerals of New Mexico, 3rd Rev. Ed., 1996
    • Torrance Co.
Minerals of New Mexico 3rd ed.
  • Virginia
    • Chesterfield Co.
Minerals of Virginia 1990 by R. V. Dietrich
  • Washington
    • Yakima Co.
      • Mount Adams
Cannon, B. (1975): Minerals of Washington, p.120
Uzbekistan
 
  • Fergana Region
    • Uzbekistan District
Uklonskiy, A.S. [Уклонский, А.С.] (1964) Geochemistry of native sulphur [К геохимии самородной серы]. Uzbek Geological Journal [Uzbekskiy Geologicheskiy Zhurnal, Узбекский геологический журнал], 6, 5-10; Uklonskiy, A.S. [Уклонский, А.С.] (1982) Geochemistry of native sulphur [К геохимии самородной серы]. In: Problems of mineralogy and geochemistry. Selected papers [Проблемы минералогии и геохимии. Избранные труды]. Uzbek SSR Branch, Academy of Sciences Press [Издательство "Фан" Узбекской ССР], Tashkent, 66-71.
 
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