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Langbeinite

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Formula:
K2Mg2(SO4)3
Colour:
Colorless, white, pale tinges; colourless in transmitted light
Lustre:
Vitreous
Hardness:
3½ - 4
Specific Gravity:
2.83
Crystal System:
Isometric
Name:
After A. Langbein of Leopoldshall, Germany.
Piezoelectric.


Hide all sections | Show all sections

Classification of LangbeiniteHide

Approved, 'Grandfathered' (first described prior to 1959)
First Published:
1891
7.AC.10

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
A : Sulfates (selenates, etc.) without additional anions, without H2O
C : With medium-sized and large cations
28.4.4.1

28 : ANHYDROUS ACID AND NORMAL SULFATES
4 : Miscellaneous
25.3.13

25 : Sulphates
3 : Sulphates of Mg

Physical Properties of LangbeiniteHide

Vitreous
Transparency:
Transparent
Colour:
Colorless, white, pale tinges; colourless in transmitted light
Hardness:
3½ - 4 on Mohs scale
Tenacity:
Brittle
Cleavage:
None Observed
Fracture:
Conchoidal
Density:
2.83 g/cm3 (Measured)    2.77 g/cm3 (Calculated)

Optical Data of LangbeiniteHide

Type:
Isotropic

Chemical Properties of LangbeiniteHide

Formula:
K2Mg2(SO4)3

Crystallography of LangbeiniteHide

Crystal System:
Isometric
Class (H-M):
2 3 - Tetartoidal
Space Group:
P21 3
Cell Parameters:
a = 9.92 Å
Unit Cell V:
976.19 ų (Calculated from Unit Cell)
Z:
4
Morphology:
Crystals rare. Usually disseminated grains, nodular or massive aggregates.

Type Occurrence of LangbeiniteHide

Other Language Names for LangbeiniteHide

German:Langbeinit
Simplified Chinese:无水钾镁矾
Spanish:Langbeinita
Traditional Chinese:無水鉀鎂礬

Relationship of Langbeinite to other SpeciesHide

Other Members of this group:
CalciolangbeiniteK2Ca2(SO4)3 Iso. 2 3 : P21 3
Efremovite(NH4)2Mg2(SO4)3Iso.
ManganolangbeiniteK2Mn2(SO4)3Iso. 2 3 : P21 3

Common AssociatesHide

Associated Minerals Based on Photo Data:
Sylvite3 photos of Langbeinite associated with Sylvite on mindat.org.
Piypite1 photo of Langbeinite associated with Piypite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

7.AC.Acmonidesite(NH4,K,Pb)8NaFe2+4(SO4)5Cl8Orth. 2 2 2 : C2 2 21
7.AC.05VanthoffiteNa6Mg(SO4)4Mon. 2/m : P21/b
7.AC.08Pyracmonite(NH4)3Fe(SO4)3Trig. 3m : R3c
7.AC.10Efremovite(NH4)2Mg2(SO4)3Iso.
7.AC.10ManganolangbeiniteK2Mn2(SO4)3Iso. 2 3 : P21 3
7.AC.15YavapaiiteKFe(SO4)2Mon. 2/m : B2/m
7.AC.15EldfelliteNaFe3+(SO4)2Mon. 2/m : B2/m
7.AC.20Godovikovite(NH4)Al(SO4)2Trig. 3 2 : P3 2 1
7.AC.20Sabieite(NH4)Fe3+(SO4)2Trig. 3 2 : P3 2 1
7.AC.25ThénarditeNa2SO4Orth. mmm (2/m 2/m 2/m) : Fddd
7.AC.30MetathénarditeNa2SO4Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc
7.AC.35Aphthitalite(K,Na)3Na(SO4)2Trig.

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

28.4.4.2ManganolangbeiniteK2Mn2(SO4)3Iso. 2 3 : P21 3
28.4.4.3Efremovite(NH4)2Mg2(SO4)3Iso.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

25.3.1KieseriteMgSO4 · H2OMon. 2/m
25.3.2SanderiteMgSO4 · 2H2OOrth. 2 2 2 : P21 21 21
25.3.3StarkeyiteMgSO4 · 4H2OMon. 2/m : P21/b
25.3.4PentahydriteMgSO4 · 5H2OTric.
25.3.5HexahydriteMgSO4 · 6H2OMon. 2/m : P2/m
25.3.6EpsomiteMgSO4 · 7H2OOrth. 2 2 2 : P21 21 21
25.3.7CaminiteMg7(SO4)5(OH)4 · H2OTet.
25.3.8VanthoffiteNa6Mg(SO4)4Mon. 2/m : P21/b
25.3.9BlöditeNa2Mg(SO4)2 · 4H2OMon. 2/m
25.3.10KonyaiteNa2Mg(SO4)2 · 5H2OMon. 2/m : P21/b
25.3.11LöweiteNa12Mg7(SO4)13 · 15H2OTrig.
25.3.12UklonskoviteNaMg(SO4)F · 2H2OMon.
25.3.14LeoniteK2Mg(SO4)2 · 4H2OMon. 2/m
25.3.15PicromeriteK2Mg(SO4)2 · 6H2OMon. 2/m
25.3.16Efremovite(NH4)2Mg2(SO4)3Iso.
25.3.17Boussingaultite(NH4)2Mg(SO4)2 · 6H2OMon. 2/m : P21/b
25.3.18PickeringiteMgAl2(SO4)4 · 22H2OMon. 2/m : P21/b

Other InformationHide

Thermal Behaviour:
Melting Point = 930°.
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 LangbeiniteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Zuckschwerdt, S. (1891) Langbeinit, ein neues kaliummagnesiumsulfat. Zeitschrift für Angewandte Chemie: 1891: 356-356.
Luedecke (1898) Zeitschrift für Kristallographie, Mineralogie und Petrographie, Leipzig: 29: 255.
Sachs (1902) Sitzungsberichte der Akademie der Wissenschaften, Berlin: 376.
Nacken (1907) Gesellschaft der Wissenschaften zu Göttingen, Nachr.: 602.
Görgey (1909) Mineralogische und petrographische Mitteilungen, Vienna: 28: 334.
Gossner and Koch (1931) Zeitschrift für Kristallographie, Mineralogie und Petrographie, Leipzig: 80: 455.
Ramsdell, L.S. (1935) An x-ray study of the system K2SO4-MgSO4-CaSO4. American Mineralogist: 20: 569-574.
Bond, W.L. (1943) The Mathematics of the Physical Properties of Crystals. Bell Systems Technology Journal: 22: 145.
Palache, Charles, Harry Berman & Clifford Frondel (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Seventh edition, Volume II: 434-435.
Mereiter, K. (1979) Refinement of the crystal structure of langbeinite, K2Mg2(SO4)3. Neues Jahrbuch für Mineralogie, Monatshefte: 1979: 182-188.
Battle, P.D., Cheetham, A.K., Harrison, W.T.A., Long, G.J. (1986) The crystal structure and magnetic properties of the synthetic langbeinite KBaFe2(PO4)3. Journal of Solid State Chemistry: 62: 16-25.
Battle, P.D., Gibb, T.C., Nixon, S. (1988) The magnetic properties of the synthetic langbeinite KBaCrs(PO4)3. Journal of Solid State Chemistry: 75: 21-29.
Oelkrug, H., Bruckel, T., Hohlwein, D., Hoser, A., Prandl, W. (1988) The magnetic structure of the langbeinite K2Mn2(SO4)3. Physics and Chemistry of Minerals: 16: 246-249.

Internet Links for LangbeiniteHide

Localities for LangbeiniteHide

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.
Austria
 
  • Styria
    • Bad Aussee
      • Altaussee
R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993)
  • Tyrol
    • North Tyrol
      • Inn valley
        • Innsbruck
          • Hall
            • Hall valley
Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 434; R. Exel (1993): Die Mineralien und Erzlagerstätten Österreichs.
  • Upper Austria
    • Gmunden
      • Bad Ischl
        • Perneck
R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993)
      • Hallstatt
Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 434; R. Exel (1993): Die Mineralien und Erzlagerstätten Österreichs.
China
 
  • Qinghai Province
    • Haixi Autonomous Prefecture
      • Golmud Co. (Ge'ermu Co.)
Anthony, J.W. et al.: Handbook of Mineralogy
      • Mangnai Co. (Mangya Co.)
Shaoxiu Yang (1991): Journal of Lake Sciences 3(1), 1-10
  • Shandong Province
    • Tai'an Prefecture
      • Daiyue District
        • Dawenkou depression
Zhongde Zhu (1988): Mineral Deposits 7(1), 87-96
  • Xinjiang Autonomous Region
    • Tulufan Prefecture (Turfan Prefecture; Turpan Prefecture)
      • Tulufan Co. (Turfan Co.; Turpan Co.)
        • Turfan basin (Turpan basin)
Bingxiao Li (1992): Journal of Lake Sciences 4(1), 48-55
  • Yunnan Province
    • Pu'er Prefecture
      • Jiangcheng Co.
Li, M., Yan, M., Wang, Z., Liu, X., Fang, X., & Li, J. (2015). The origins of the Mengye potash deposit in the Lanping–Simao Basin, Yunnan Province, Western China. Ore Geology Reviews, 69, 174-186.
Czech Republic
 
  • Bohemia (Böhmen; Boehmen)
    • Central Bohemia Region
Zacek, V., Oplustil, S., Mayova, A. & Meyer, F. R. (1995): Die Mineralien von Kladno in Mittelböhmen, Tschechische Republik. Mineralien-Welt 6 (1), 13-30 (in German).
    • Hradec Králové Region
      • Trutnov (Trautenau)
        • Radvanice
Sejkora, J., Kotrlý, M.: Sulfáty vysokoteplotní oxidační minerální asociace; hořící odval dolu Kateřina v Radvanicích v Čechách. Bulletin mineralogicko-petrografického oddělení Národního muzea v Praze, 2001, roč. 9, s. 261-267.
France
 
  • Hauts-de-France
    • Pas-de-Calais
Naze-Nancy Masalehdani, M., Mees, F., Dubois, M., Coquinot, Y., Potdevin, J.-L., Fialin, M. & Blanc-Valleron, M.-M. (2009): Condensate minerals from a burning coal-waste heap in Avion, Northern France. Can. Mineral. 47, 573-591.
Germany
 
  • Hesse
    • Fulda
      • Neuhof
        • Giesel
S. Weiß: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
Krah, O., (1988): Beobachtungen beim Durchbruch eines Basaltganges durch das Kalilager vom Werk Neuhof-Ellers, Der Aufschluss Vol. 39 (2), 103-113
    • Werra valley
      • Heringen
Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
      • Phillippsthal
Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
  • Lower Saxony
    • Celle
      • Hänigsen
Bode "Mineralien und Fundstellen BRD" from 1989 ISBN 3-925094-24-5 Pg.9
      • Wathlingen
Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
    • Hanover
      • Lehrte
Weiss: "Mineralienfundstellen, Deutschland West", Weise (Munich), 1990
  • Saxony-Anhalt
    • Halberstadt
Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 434.
    • Stassfurt Potash Deposit
      • Bernburg
Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 434; Naumann, Zirkel (1898) "Elemente der Mineralogie", 13th Ed.
      • Stassfurt
Dana 6:A3:14,43,46; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 430, 447; Zr. Kr. (1911): 50: 139.
  • Thuringia
    • Gera
      • Ronneburg U deposit
T. Witzke & F. Rüger: Lapis 1998(7/8), 26-64
    • Thuringian Forest
      • Merkers-Kieselbach
W.I. Borrisenkow (1968) Zeitschr. für angewandte Geologie 14, 7-10
      • Unterbreizbach
A.Dietrich, G.Behnke and T.Thonelt (2004): Kristalle aus der Tiefe - Eine Auswahl von Mineralen aus Kali- und Steinsalzlagerstatten. Kali und Steinsalz:3.p.6-14.
Kazakhstan
 
  • Atyrau Province (Atyrau Oblysy; Atyrau Oblast')
    • Atyrau (Gur'yev)
Pekov, I. V. & Abramov, D. V. (1993): Boron deposit of the Inder and its minerals. World of Stones, 1, 23-30.
Pakistan
 
  • Punjab
    • Salt Range
      • Khewra
Dana 6: 899; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 432, 434, & 449.
Poland
 
  • Wielkopolskie
Jirásek, J.: Solný důl Kłodawa (Polsko). Minerál, 2004, roč. 12, č. 2, s. 98-102. ISSN 1213-0710 (excerpted from unpublished thesis Hanczke, T.: Mineralogia i petrografia soli czechstyńskich kopalni "Kłodawa". Doktroská práce, Uniwersytet Jagiellonski, Instytut nauk geologicznych, 1967.); Wachowiak, J., Pieczka, A. (2016): Motukoreaite from the Kłodawa Salt Dome, Central Poland. Mineralogical Magazine, 80, 277-289
Réunion Island
 
Vlastélic, I., Staudacher, T., Deniel, C., Devidal, J. L., Devouard, B., Finizola, A., & Telouk, P. (2013). Lead isotopes behavior in the fumarolic environment of the Piton de la Fournaise volcano (Reunion Island). Geochimica et Cosmochimica Acta, 100, 297-314.
Russia
 
  • Far-Eastern Region
    • Kamchatka Oblast'
      • Tolbachik volcano
Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
          • Northern Breakthrough (North Breach)
            • Second scoria cone
Pekov, I.V., Zubkova, N.V., Yapaskurt, V.O., Belakovskiy, D.I., Vigasina, M.F., Sidorov, E.G., Pushcharovsky, D.Yu. (2014): New arsenate minerals from the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. II. Ericlaxmanite and kozyrevskite, two natural modifications of Cu4O(AsO4)2. Mineralogical Magazine, 78, 1553–1569.
N. V. Chukanov, M. N. Murashko, A. E. Zadov & A. F. Bushmakin (2006): Avdoninite, K2Cu5Cl8(OH)4• H2O, a new mineral from volcanic exhalations and from the zone of technogenesis at massive sulphide ore deposits. Proceedings of the Russian Mineralogical Society 135(3), 38–42; Zelenski, M.E., Zubkova, N.V., Pekov, I.V., Polekhovsky, Yu.S. & Pushcharovsky, D.Yu. (2012): Cupromolybdite, Cu3O(MoO4)2, a new fumarolic mineral from the Tolbachik volcano, Kamchatka Peninsula, Russia. European Journal of Mineralogy, 24, 749-757.; Pekov, I. V., Zelenski, M. E., Zubkova, N. V., Yapaskurt, V. O., Chukanov, N. V., Belakovskiy, D. I., & Pushcharovsky, D. Y. (2012). Calciolangbeinite, K2Ca2 (SO4) 3, a new mineral from the Tolbachik volcano, Kamchatka, Russia. Mineralogical Magazine, 76(3), 673-682.
  • Urals Region
    • Southern Urals
      • Chelyabinsk Oblast'
Chesnokov, B.V., L.F. Bazhenova, E.P. Shcherbakova, T.A. Michal, T.N. Deriabina (1988), New minerals from the burned dumps of the Chelyabinsk coal basin, in Mineralogy, technogenesis, and mineral-resource complexes of the Urals. Akad. Nauk SSSR-Uralskoe Otdel.: 5-31 (in Russian).; Cesnokov, B., Kotrly, M. and Nisanbajev, T. (1998): Brennende Abraumhalden und Aufschlüsse im Tscheljabinsker Kohlenbecken - eine reiche Mineralienküche. Mineralien-Welt, 9 (3), 54-63 (in German).
Tajikistan
 
  • Viloyati Sogd (Viloyati Sughd; Viloyati Khodzhent; Viloyati Leninabad)
    • Gissar Range
PXRD
UK
 
  • England
    • North Yorkshire
Smith, F.W., Dearlove, J.P.L., Kemp, S.J., Bell, C.P., Milne, C.J. and Pottas, T.L. (2014) Potash – Recent exploration developments in North Yorkshire. Pp. 45-50 in Hunger, E., Brown, T. J. and Lucas, G. (Eds.) Proceedings of the 17th Extractive Industry Geology Conference, EIG Conferences Ltd. 202pp
Smith, F.W., Dearlove, J.P.L., Kemp, S.J., Bell, C.P., Milne, C.J. and Pottas, T.L. (2014) Potash – Recent exploration developments in North Yorkshire. Pp. 45-50 in Hunger, E., Brown, T. J. and Lucas, G. (Eds.) Proceedings of the 17th Extractive Industry Geology Conference, EIG Conferences Ltd. 202pp
Ukraine
 
  • L'viv Oblast' (Lviv Oblast'; Lwiw Oblast')
    • Drohobych
Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 434.
USA
 
  • New Mexico
    • Eddy and Lea Counties
Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 595.
    • Eddy Co.
Northrop, Minerals of New Mexico, 2nd. rev. ed. (1959)
      • Carlsbad Potash District
SIMMONS, P.S. (2013)The Carlsbad Potash Basin, Carlsbad, New Mexico. Mineralogical Record, 44 (1), 13-49.
NMBMMR Bull 87 Mineral and Water Resources of New Mexico
NMBMMR Bull 87 Mineral and Water Resources of New Mexico
Van King
Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 435; Minerals of New Mexico 3rd ed.
Mineral and/or Locality  
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