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Blödite

Formula:
Na
 
2
Mg(SO
 
4
)
 
2
·4H
 
2
O
System:MonoclinicColour:Colourless, ...
Lustre:VitreousHardness:2½ - 3
Name:For German chemist Carl August Blöde (1773-1820).
This page provides mineralogical data about Blödite.

Classification of Blödite

IMA status:Approved
Strunz 8th edition ID:6/C.18-10
Nickel-Strunz 10th (pending) edition ID:7.CC.50

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
C : Sulfates (selenates, etc.) without additional anions, with H2O
C : With medium-sized and large cations
Dana 8th edition ID:29.3.3.1

29 : HYDRATED ACID AND NORMAL SULFATES
3 : A2B(XO4)2·xH2O
Hey's CIM Ref.:25.3.9

25 : Sulphates
3 : Sulphates of Mg
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Type Occurrence of Blödite

Type Locality:Ischler Salzberg, Perneck, Bad Ischl, Upper Austria, Austria
Geological Setting of type material:Oceanic salt deposit.

Occurrences of Blödite

Geological Setting:Oceanic salt deposits; lacustrine salt deposits; nitrate deposits in arid regions.

Physical Properties of Blödite

Lustre:Vitreous
Diaphaneity (Transparency):Transparent
Colour:Colourless, bluish-green, reddish; colourless in transmitted light.
Hardness (Mohs):2½ - 3
Tenacity:Brittle
Cleavage:None Observed

Crystallography of Blödite

Crystal System:Monoclinic
Class (H-M):2/m - Prismatic
Cell Parameters:a = 11.04Å, b = 8.15Å, c = 5.49Å
β = 100.41°
Ratio:a:b:c = 1.355 : 1 : 0.674
Unit Cell Volume:V 485.84 ų (Calculated from Unit Cell)
Morphology:Crystals short prismatic [001], frequently highly modified. Massive, granular or compact.
Crystal Atlas:
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Blödite no.1 - Goldschmidt (1913-1926)
Blödite no.4 - Goldschmidt (1913-1926)

About Crystal Atlas

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X-Ray Powder Diffraction:
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Radiation - Copper Kα
Data Set:
Horizontal Axis: ° to ° Vertical Axis: % Source Data: Filtered Data: Peaks:
Data courtesy of RRUFF project at University of Arizona, used with permission.

Optical Data of Blödite

Type:Biaxial (-)
RI values: nα = 1.483 nβ = 1.486 nγ = 1.487
2V:Measured: 71° , Calculated: 58°
Maximum Birefringence:δ = 0.004

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate
Dispersion:relatively strong

Chemical Properties of Blödite

Formula:
Na
 
2
Mg(SO
 
4
)
 
2
·4H
 
2
O
Essential elements:H, Mg, Na, O, S
All elements listed in formula:H, Mg, Na, O, S

Relationship of Blödite to other Species

Related Minerals - Nickel-Strunz Grouping):
7.CC.05Krausite
KFe(SO
 
4
)
 
2
·H
 
2
O
7.CC.10Amarillite
NaFe(SO
 
4
)
 
2
·6H
 
2
O
7.CC.10Tamarugite
NaAl(SO
 
4
)
 
2
·6H
 
2
O
7.CC.15Kalinite
KAl(SO
 
4
)
 
2
·11H
 
2
O Not confirmed
7.CC.15Mendozite
NaAl(SO
 
4
)
 
2
·11H
 
2
O
7.CC.20Lonecreekite
(NH
 
4
)Fe
3+
 
[SO
 
4
]
 
2
· 12H
 
2
O
7.CC.20Alum-(K)
KAl[SO
 
4
]
 
2
· 12H
 
2
O
7.CC.20Alum-(Na)
NaAl[SO
 
4
]
 
2
· 12H
 
2
O
7.CC.20Tschermigite
(NH
 
4
)Al[SO
 
4
]
 
2
· 12H
 
2
O
7.CC.20Lanmuchangite
Tl
+
 
Al[SO
 
4
]
 
2
· 12H
 
2
O
7.CC.25Voltaite
K
 
2
Fe
2+
5
Fe
3+
3
Al[SO
 
4
]
 
12
· 18H
 
2
O
7.CC.25Zincovoltaite
K
 
2
Zn
 
5
Fe
3+
3
Al[SO
 
4
]
 
12
· 18H
 
2
O
7.CC.30Kröhnkite
Na
 
2
Cu(SO
 
4
)
 
2
·2H
 
2
O
7.CC.35Ferrinatrite
Na
 
3
Fe(SO
 
4
)
 
3
·3H
 
2
O
7.CC.40Goldichite
KFe(SO
 
4
)
 
2
·4H
 
2
O
7.CC.45Löweite
Na
 
12
Mg
 
7
(SO
 
4
)
 
13
7.CC.50Nickelblödite
Na
 
2
(Ni,Mg)(SO
 
4
)
 
2
·4H
 
2
O
7.CC.50Changoite
Na
 
2
Zn(SO
 
4
)
 
2
·4H
 
2
O
7.CC.50Zincblödite
7.CC.55Leonite
K
 
2
Mg(SO
 
4
)
 
2
·4H
 
2
O
7.CC.55Mereiterite
K
 
2
Fe(SO
 
4
)
 
2
·4H
 
2
O
7.CC.60Boussingaultite
(NH
 
4
)
 
2
Mg(SO
 
4
)
 
2
·6H
 
2
O
7.CC.60Cyanochroite
K
 
2
Cu(SO
 
4
)
 
2
·6H
 
2
O
7.CC.60Konyaite
Na
 
2
Mg(SO
 
4
)
 
2
·5H
 
2
O
7.CC.60Mohrite
(NH
 
4
)
 
2
Fe(SO
 
4
)
 
2
·6H
 
2
O
7.CC.60Nickelboussingaultite
(NH
 
4
)
 
2
Ni(SO
 
4
)
 
2
·6H
 
2
O
7.CC.60Picromerite
K
 
2
Mg(SO
 
4
)
 
2
·6H
 
2
O
7.CC.65Polyhalite
K
 
2
Ca
 
2
Mg(SO
 
4
)
 
4
·2H
 
2
O
7.CC.65Wattevilleite
Na
 
2
Ca(SO
 
4
)
 
2
·4H
 
2
O (?)
7.CC.70Leightonite
K
 
2
Ca
 
2
Cu(SO
 
4
)
 
4
·2H
 
2
O
Related Minerals - Hey's Index Grouping:
25.3.1Kieserite
MgSO
 
4
·H
 
2
O
25.3.2Sanderite
MgSO
 
4
·2H
 
2
O
25.3.3Starkeyite
MgSO
 
4
·4H
 
2
O
25.3.4Pentahydrite
MgSO
 
4
·5H
 
2
O
25.3.5Hexahydrite
MgSO
 
4
·6H
 
2
O
25.3.6Epsomite
MgSO
 
4
·7H
 
2
O
25.3.7Caminite
Mg
 
7
[(OH)
 
4
|(SO
 
4
)
 
5
] · H
 
2
O
25.3.8Vanthoffite
Na
 
6
Mg(SO
 
4
)
 
4
25.3.10Konyaite
Na
 
2
Mg(SO
 
4
)
 
2
·5H
 
2
O
25.3.11Löweite
Na
 
12
Mg
 
7
(SO
 
4
)
 
13
25.3.12Uklonskovite
NaMg[F|SO
 
4
] · 2H
 
2
O
25.3.13Langbeinite
K
 
2
Mg
 
2
(SO
 
4
)
 
3
25.3.14Leonite
K
 
2
Mg(SO
 
4
)
 
2
·4H
 
2
O
25.3.15Picromerite
K
 
2
Mg(SO
 
4
)
 
2
·6H
 
2
O
25.3.16Efremovite
(NH
 
4
)
 
2
Mg
 
2
(SO
 
4
)
 
3
25.3.17Boussingaultite
(NH
 
4
)
 
2
Mg(SO
 
4
)
 
2
·6H
 
2
O
25.3.18Pickeringite
MgAl
 
2
(SO
 
4
)
 
4
·22H
 
2
O

Other Names for Blödite

Synonyms:
AstrachaniteAstrakaniteAstrakhanite
German names:
AstrachanitAstrakanitAstrakhanitBlöditBloedit
SimonyitWarthit
Italian names:
Bloedite
Russian names:
Бледит
Spanish names:
AstrachanitaAstrakhanitaBlödita
Varieties:
Natronkalisimonyit

Other Information

Other Information:Readily soluble in cold water.
Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Blödite

Reference List:John (1821) Chemische Schriften: 6: 240 (as Blödit).

Rose, G. (1837) Reise nach dem Ural, dem Altai, und dem kaspischen Meere, Volume 2 (1842). Berlin: 2: 270 (as Astrakanit).

Tschermak (1869) Konigliche Akademie der Wissenschaften, Vienna, Ber.: 60(1): 718 (as Simonyit).

Quenstedt, Fr. Aug. (1877) Handbuch der Mineralogie, third edition: 645 (as Warthit).

Koechlin (1900) Ann. Naturhist. Hofmuseum, Vienna: 15: 103.

Koechlin (1902) Mineralogische und petrographische Mitteilungen, Vienna: 21: 356 (as Natronkalisimonyit).

Goldschmidt, V. (1913) Atlas der Krystallformen. 9 volumes, atlas, and text, vol. 1: 207.

Schaller, Waldemar Theodore (1913), Immense bloedite crystals: Washington Academy of Science Journal: 3: 75-76.

Laszkiewicz (1929) Arch. Min. Soc. Warsaw: 5: 79.

Schaller, Waldemar Theodore (1932), The refractive indices of bloedite: American Mineralogist: 17: 530-533.

Lauro, C. (1940) Ricerche roentgenografiche sulla bloedite. Periodico di Mineralogia – Roma: 11: pp. 89-94.

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. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged: 447-450.

Eady, A.F. (1966), Bloedite-Kristalle von Soda Lake, San Luis Obispo County, Kalifornien, Aufschluss: 17: 268-269;…(abstract) Min. Abst. (1967): 18(2): 145.

Lauro C., Di Sabatino B. (1970) - Contributo alla conoscenza dei solfati sodico- magnesiaci naturali; nota I: il comportamento della bloedite alle analisi diffrattometrica e termica. Periodico di mineralogia – Roma, pp. 279-314.

Canadian Mineralogist (1985): 23: 669-674.

Internet Links for Blödite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Blödite in the Natural History Museum (London) online catalogue
  • Blödite details from Handbook of Mineralogy (PDF)
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    Localities for Blödite

    The 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.
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    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Austria
     
    • Salzburg
      • Abtenau
    A. Strasser: Die Minerale Salzburgs (1989)
        • Webing
    A. Strasser: Die Minerale Salzburgs (1989)
    A. Strasser: Die Minerale Salzburgs (1989)
      • Golling
        • Moosegg (Grubach)
    A. Strasser: Die Minerale Salzburgs (1989)
      • Hallein
        • Dürrnberg
    A. Strasser: Die Minerale Salzburgs, 1989
    • Tyrol
      • North Tyrol
        • Inn valley
          • Innsbruck
            • Hall
    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; R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993)
    • Upper Austria
      • Bad Ischl
        • Perneck
    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: 449; Canadian Mineralogist (1985): 23: 669.
      • 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: 449; R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993)
    Chile
     
    • Antofagasta Region
      • El Loa Province
        • Calama
    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: 310, 449, 603.
      • Tocopilla Province
        • Pedro de Valdivia
    Pueyo, J. J., Chong, G. & Vega, M. (1998): Mineralogy and parental brine evolution in the Pedro de Valdivia nitrate deposit, Antofagasta, Chile. Revista Geologica de Chile 25, 3-15. (in Spanish)
    China
     
    • Qinghai (Chinghai) Province
      • Hainan Autonomous Prefecture
    Sun Da-peng, Li Bing-xiao, Ma Yua-hua, and Lin Qun-zhu (2002): Journal of Salt Lake Research 10(4), 1-12.
    • Shanxi Province
      • Yuncheng Prefecture
    Zheng Mianping, Tang Jiayou, Liu Junying, and Zhang Fasheng (1993): Hydrobiologia 267(1-3), 23-36.
    • Xinjiang (Xinjiang-Uygur) Autonomous Region
      • Bayin'gholin (Bayingolin; Bayinguoleng) Autonomous Prefecture
        • Ruoqiang (Qakilik; Chaqiliq) Co.
    Cheng-Lin Liu, Yong-Zhi Chen, Wei-Shi Chen, Peng-Cheng Jaio, Mi-Li Wang, and Shu-De Li (2006): Acta Mineralogica Sinica [Kuangwu Xuebao] 26(1), 93-98.
    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
      • North Hesse
        • Werra Valley
          • Heringen
    Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
          • Phillippsthal
    Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
    • North Rhine-Westphalia
      • Ruhr Coal Mining area
        • Herne
    Weiss: "Mineralfundstellen, Deutschland West", 1990
    • Saxony-Anhalt
      • Stassfurt Potash deposit
        • Tarthun
    No reference listed
        • Westeregeln
    Naumann, Zirkel: "Elemente der Mineralogie", 13th Ed., 1898
    • Saxony
      • Dresden
    Thalheim, K.; Reichel, W. & Witzke, T. (1991): Die Minerale des Döhlener Beckens.- Schriften des Staatlichen Museums für Mineralogie und Geologie zu Dresden, Nr. 3
    • Thuringia
      • Thuringian Forest
        • Bad Salzungen
    W.I. Borrisenkow (1968) Zeitschr. für angewandte Geologie 14, 7-10
    Hungary
     
    • Heves Co.
      • Mátra Mts.
        • Recsk
    Szakáll & Gatter: Hun. Min.Spec., 1993
    Italy
     
    • Sicily
      • Caltanissetta Province
        • Monte Sambuco
    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: 364, 449.
      • Catania Province
        • Etna Volcanic Complex
          • Mt Etna
    www.cse.speleo.it
      • Messina Province
        • Lipari
          • Eolie Islands (Aeolian Islands)
            • Vulcano Island
              • Porto Levante
    GARAVELLI A., GRASSO M.F., VURRO F. (1996): Mineral occurrence and depositional processes at Baia di Levante area (Vulcano Island, Italy). - Mineralogica et Petrographica Acta - 39, 251- 261.
    Pakistan
     
    • Punjab
      • Salt Range
    [Specimen in collection of Natural History Museum, London]
        • Pendschab
    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 & 449.
          • Shahpur
    Dana 6: 947; 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: 449.
        • Warcha Gorge
    [Specimen in collection of Natural History Museum, London]
    Poland
     
    • Upper Silesia (Śląskie)
      • Upper Silesian Coal Basin
        • Katowice area
          • Łaziska
    Lukasz Kruszewski 2005: Minerals arising in cause of underground fires of "Skalny" coal mine dump in Laziska (Upper Silesia, Poland). Mag. Thesis (unpublished)
    Turkey
     
    • Central Anatolia Region
      • Konya Province
        • Great Konya Basin
    Am Min 66:632-635
    Turkmenistan
     
    • Balkan Province
    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: 449.
    Ukraine
     
    • Ivanovo-Frankovsk Oblast'
    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: 449.
    USA
     
    • Arizona
      • Coconino Co.
        • White Mesa District
          • Paria River
            • Lee's Ferry
    Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 140.
    • California
      • Imperial Co.
        • Bertram
    [Murch, J & Webb, R (1966) Minerals of California, California Division of Mines and Geology Bulletin 189]
      • San Luis Obispo Co.
        • Carrizo Plain
    Encyclopia of Minerals (Roberts, Rapp, Weber)
    • Colorado
      • Garfield Co.
    Minerals of Colorado (1997) Eckels, E. B.
      • Mesa Co.
    Minerals of Colorado (1997) Eckel, E. B.
      • Moffat Co.
        • Piceance Basin
    Minerals of Colorado (1997) E.B. Eckels
      • Rio Blanco Co.
    Minerals of Colorado (1997) Eckels, E. B.
    • New Mexico
      • Eddy Co.
    Northrop, Minerals of New Mexico, 3rd. rev. ed. (1996)
      • Torrance Co.
    Northrop, Minerals of New Mexico, 3rd Rev. Ed., 1996
    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: 449; USGS Prof Paper 68 The Ore Deposits of New Mexico.
    • Utah
      • Box Elder Co.
    UGMS Bull 117 Minerals and Mineral Localities of Utah
      • Davis Co.
    UGMS Bull 117 Minerals and Mineral Localities of Utah
      • Tooele Co.
    UGMS Bull 117 Minerals and Mineral Localities of Utah
    • Washington
      • Yakima Co.
    Cannon, B. (1975): Minerals of Washington, p.40, 60, 63, 77, 120, 166
    Uzbekistan
     
    • Karakalpakstan (Qaraqalpog'iston) Respublikasi
      • Lower Amu Darya (Amydar'ya) River
    Mineral and/or Locality
    Google
     
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