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⇱ Hydroglauberite: Mineral information, data and localities.


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Hydroglauberite

A valid IMA mineral species
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About HydroglauberiteHide

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Formula:
Na10Ca3(SO4)8 · 6H2O
Colour:
White
Lustre:
Silky
Specific Gravity:
1.510
Crystal System:
Monoclinic
Name:
Named for its chemical similarity to glauberite, with essential water.
An uncommon alteration product of glauberite.

Chemically related to eugsterite, antofagastaite, omongwaite, and partially to cesanite.


Unique IdentifiersHide

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Mindat ID:
1973
Long-form identifier:
mindat:1:1:1973:2

IMA Classification of HydroglauberiteHide

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Classification of HydroglauberiteHide

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7.CD.20

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
C : Sulfates (selenates, etc.) without additional anions, with H2O
D : With only large cations
29.4.1.1

29 : HYDRATED ACID AND NORMAL SULFATES
4 : AmBn(XO4)p·xH2O, with (m+n):p < 3:2 and > 1:1
25.4.7

25 : Sulphates
4 : Sulphates of Ca, Sr and Ba

Mineral SymbolsHide

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As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference for Standard
HglbIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of HydroglauberiteHide

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Silky
Transparency:
Translucent
Comment:
Silky when in aggregates
Colour:
White
Streak:
White
Cleavage:
Distinct/Good
Three noted, one of which is parallel to elongation
Density:
1.510 g/cm3 (Measured)    

Optical Data of HydroglauberiteHide

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Type:
Biaxial (-)
RI values:
nα = 1.488 nγ = 1.500
Max. Birefringence:
δ = 0.012
Based on recorded range of RI values above.

Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.

Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.

Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars.

Surface Relief:
Moderate
Dispersion:
weak

Chemistry of HydroglauberiteHide

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Mindat Formula:
Na10Ca3(SO4)8 · 6H2O
Element Weights:
Element% weight
O49.561 %
S20.911 %
Na18.741 %
Ca9.801 %
H0.986 %

Calculated from ideal end-member formula.

Crystallography of HydroglauberiteHide

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Crystal System:
Monoclinic
Morphology:
felted aggregates of fibrous crystals, dense masses
Comment:
Point Group: n.d.; Space Group: n.d. Z = n.d.

X-Ray Powder DiffractionHide

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Powder Diffraction Data:
d-spacingIntensity
3.08 Å(100)
9.20 Å(90)
2.78 Å(90b)
4.60 Å(80)
2.90 Å(70)
4.20 Å(60)
3.52 Å(60)

Geological EnvironmentHide

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Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 7: Great Oxidation Event<2.4
47a : [Near-surface hydration of prior minerals]
47b : [Sulfates and sulfites]

Type Occurrence of HydroglauberiteHide

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General Appearance of Type Material:
Dense, snow-white masses; appears as fibers under magnification
Place of Conservation of Type Material:
A.E. Fersman Mineralogical Museum, Academy of Sciences, Moscow, Russia, numbers 72170, 72171.
Smithsonian (National Museum of Natural History), Washington, D.C., USA, number 148423.
Associated Minerals at Type Locality:

Synonyms of HydroglauberiteHide

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Other Language Names for HydroglauberiteHide

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Simplified Chinese:水钙芒硝
Traditional Chinese:水鈣芒硝

Common AssociatesHide

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Associations Based on Photo Data:
11 photos of Hydroglauberite associated with GlauberiteNa2Ca(SO4)2
9 photos of Hydroglauberite associated with GypsumCaSO4 · 2H2O
4 photos of Hydroglauberite associated with AndersoniteNa2Ca(UO2)(CO3)3 · 6H2O

Related Minerals - Strunz-mindat GroupingHide

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7.CD.Argesite(NH4)7Bi3Cl16 Trig. 3m(32/m) : R3c
7.CD.Campostriniite(Bi3+,Na)3(NH4,K)2Na2(SO4)6 · H2OMon. 2/m : B2/b
7.CD.05MatteucciteNaHSO4 · H2OMon. m
7.CD.10MirabiliteNa2SO4 · 10H2OMon. 2/m : P21/b
7.CD.15Lecontite(NH4,K)NaSO4 · 2H2OOrth. 222 : P212121
7.CD.25EugsteriteNa4Ca(SO4)3 · 2H2OMon.
7.CD.30GörgeyiteK2Ca5(SO4)6 · H2OMon. 2/m : B2/b
7.CD.35SyngeniteK2Ca(SO4)2 · H2OMon. 2/m : P21/m
7.CD.35AntofagastaiteNa2Ca(SO4)2 · 1.5H2OMon. 2/m : P21/m
7.CD.35Koktaite(NH4)2Ca(SO4)2 · H2OMon. 2/m : P21/b
7.CD.40GypsumCaSO4 · 2H2OMon. 2/m
7.CD.45Chinleite-(Y)NaY(SO4)2 · H2OTrig. 32
7.CD.45BassaniteCa(SO4) · 0.5H2OMon. 2 : B2
7.CD.45Chinleite-(Nd)NaNd(SO4)2 · H2OTrig. 32 : P3221
7.CD.45Chinleite-(Ce)NaCe(SO4)2(H2O)Trig. 32 : P3221
7.CD.50Zircosulfate(Zr,Ti)(SO4)2 · 4H2OOrth. mmm(2/m2/m2/m) : Fddd
7.CD.55SchieffelinitePb10Te6+6O20(OH)14(SO4)(H2O)5Orth. mmm(2/m2/m2/m) : Cmcm
7.CD.60MontaniteBi2(TeO6) · nH2OHex. 6 : P6
7.CD.65OmongwaiteNa2Ca5(SO4)6 · 3H2OMon. 2 : B2

Other InformationHide

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Notes:
Tastes salty, slightly bitter.
Decomposed by H2O to form gypsum.
Easily dissolved by dilute HCl.
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for HydroglauberiteHide

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References for HydroglauberiteHide

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Localities for HydroglauberiteHide

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Showing 18 localities.

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

Locality ListHide

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👁 Image
- This locality has map coordinates listed.
👁 Image
- This locality has estimated coordinates.
ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. 👁 Image
- Good crystals or important locality for species.
👁 Image
- 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 (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Argentina
  • Salta Province
    • Los Andes department
      • San Antonio de los Cobres
Ovejero Toledo et al. (2009)
Australia
  • South Australia
    • Wakefield Regional Council
      • Lochiel
R. Bottrill
Canada
  • Saskatchewan
Last (1990)
China
  • Qinghai
    • Haixi Mongol and Tibetan Autonomous Prefecture
      • Da Qaidam (Dachaidan Co.)
Zheng et al. (2005)
      • Mangnai City (Mangya Co.)
Mianping Zheng and Xifang Liu (2010)
  • Tibet
    • Nagqu
      • Nyima Co. (Nima Co.)
Shaoxiu (1991)
Xiyu Zheng and Shengsong Yu (1981) +1 other reference
    • Ngari
      • Gê'gyai Co. (Geji Co.)
Xiyu Zheng and Shengsong Yu (1981) +2 other references
Jihe Dong and Bingxiao Li (1981)
Germany
  • Lower Saxony
    • Lüneburg District
      • Lüneburg
Weiß (1990)
  • Rhineland-Palatinate
    • Vulkaneifel
      • Daun
        • Üdersdorf
Hentschel (2014) +1 other reference
Japan
  • Fukushima Prefecture
    • Minamisōma City
Seki et al. (1987)
Spain
  • Castile-La Mancha
    • Toledo
      • Villarrubia de Santiago (Ocaña)
Calvo Rebollar (2014)
Switzerland
  • Vaud
    • Aigle
      • Bex
Musée Cantonale de Géologie de ...
USA
  • Arizona
    • Maricopa County
      • Painted Rock Mountains
        • Painted Rock Mining District
          • Theba
            • Rowley Mine
Kampf et al. (2019) +1 other reference
    • Yavapai County
      • Camp Verde Mining District
Sorrell (n.d.)
  • Nevada
    • Lander County
      • Reese River Mining District
Jensen et al. (2012)
Uzbekistan (TL)
  • Karakalpakstan
    • Lower Amu Darya River (Amydar'ya)
Slyusareva (1969) +1 other reference
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