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Hydroglauberite

Big Photo

Camp Verde, Camp Verde District, Yavapai Co., Arizona, USA
© 2008, JGW

Formula:
Na
 
10
Ca
 
3
(SO
 
4
)
 
8
·6H
 
2
O
System:Monoclinic


An uncommon alteration product of glauberite.

Classification of Hydroglauberite

IMA status:Approved
Strunz 8th edition ID:6/C.21-40
Nickel-Strunz 10th (pending) edition ID:7.CD.20

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
C : Sulfates (selenates, etc.) without additional anions, with H2O
D : With only large cations
Dana 8th edition ID:29.4.1.1

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

25 : Sulphates
4 : Sulphates of Ca, Sr and Ba
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Type Occurrence of Hydroglauberite

Type Locality:Kushkanatau salt deposit, Lower Amu Darya (Amydar'ya) River, Karakalpakstan (Qaraqalpog'iston) Respublikasi, Uzbekistan
Year of Discovery:1963

Crystallography of Hydroglauberite

Crystal System:Monoclinic

Optical Data of Hydroglauberite

Type:Biaxial (-)
RI values: nα = 1.488 nγ = 1.500
Maximum Birefringence:δ = 0.012

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

Chemical Properties of Hydroglauberite

Formula:
Na
 
10
Ca
 
3
(SO
 
4
)
 
8
·6H
 
2
O
Essential elements:Ca, H, Na, O, S
All elements listed in formula:Ca, H, Na, O, S

Relationship of Hydroglauberite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
7.CD.05Matteuccite
NaHSO
 
4
·H
 
2
O
7.CD.10Mirabilite
Na
 
2
SO
 
4
·10H
 
2
O
7.CD.15Lecontite
(NH
 
4
,K)Na(SO
 
4
)·2H
 
2
O
7.CD.25Eugsterite
Na
 
4
Ca(SO
 
4
)
 
3
·2H
 
2
O
7.CD.30Görgeyite
K
 
2
Ca
 
5
(SO
 
4
)
 
6
·H
 
2
O
7.CD.35Koktaite
(NH
 
4
)
 
2
Ca(SO
 
4
)
 
2
·H
 
2
O
7.CD.35Syngenite
K
 
2
Ca(SO
 
4
)
 
2
·H
 
2
O
7.CD.40Gypsum
Ca[SO
 
4
] · 2H
 
2
O
7.CD.45Bassanite
Ca[SO
 
4
] · 0.5H
 
2
O
7.CD.50Zircosulfate
(Zr,Ti)(SO
 
4
)
 
2
·4H
 
2
O
7.CD.55Schieffelinite
Pb
 
8
(TeO
 
4
)
 
5
(SO
 
4
)
 
3
·8H
 
2
O
7.CD.60Montanite
Bi
 
2
[TeO
 
6
] · 2H
 
2
O
7.CD.65Omongwaite
Na
 
2
Ca
 
5
(SO
 
4
)
 
6
·3H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
25.4.1Anhydrite
CaSO
 
4
25.4.2Bassanite
Ca[SO
 
4
] · 0.5H
 
2
O
25.4.3Gypsum
Ca[SO
 
4
] · 2H
 
2
O
25.4.4Glauberite
Na
 
2
Ca(SO
 
4
)
 
2
25.4.5Cesanite
Na
 
3
Ca
 
2
[OH|(SO
 
4
)
 
3
]
25.4.6Eugsterite
Na
 
4
Ca(SO
 
4
)
 
3
·2H
 
2
O
25.4.8Syngenite
K
 
2
Ca(SO
 
4
)
 
2
·H
 
2
O
25.4.9Görgeyite
K
 
2
Ca
 
5
(SO
 
4
)
 
6
·H
 
2
O
25.4.10Polyhalite
K
 
2
Ca
 
2
Mg(SO
 
4
)
 
4
·2H
 
2
O
25.4.11Koktaite
(NH
 
4
)
 
2
Ca(SO
 
4
)
 
2
·H
 
2
O
25.4.12Ye'elimite
Ca
 
4
Al
 
6
[O
 
12
|SO
 
4
]
25.4.13Ettringite
Ca
 
6
Al
 
2
[(OH)
 
4
|SO
 
4
]
 
3
 · 26H
 
2
O
25.4.14Bentorite
Ca
 
6
(Cr
3+
 
,Al)
 
2
[(OH)
 
4
|SO
 
4
]
 
3
 · 26H
 
2
O
25.4.15Celestine
SrSO
 
4
25.4.16Kalistrontite
K
 
2
Sr(SO
 
4
)
 
2
25.4.17Baryte
BaSO
 
4

Other Names for Hydroglauberite

Synonyms:
IMA1968-026
Other Languages:
German:Hydroglauberit
Spanish:Hydroglauberita

Other Information

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 Hydroglauberite

Reference List:American Mineralogist: 55: 321.

Internet Links for Hydroglauberite

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  • Raman and XRD data at RRUFF project
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    Localities for Hydroglauberite

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