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Clinoungemachite

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Formula:
(Na, K, Fe, SO
 
4
)
System:MonoclinicColour:Colorless to pale yellow
Name:Probable monoclinic dimorph of ungemachite.


An insufficiently characterised sulphate of Na, K and Fe.
Needs restudy.

Classification of Clinoungemachite

IMA status:Questionable/Doubtful
Strunz 8th edition ID:6/D.16-30
Nickel-Strunz 10th (pending) edition ID:7.DG.10

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
D : Sulfates (selenates, etc.) with additional anions, with H2O
G : With large and medium-sized cations; with NO3, CO3, B(OH)4, SiO4 or IO3
Dana 8th edition ID:31.7.3.1

31 : HYDRATED SULFATES CONTAINING HYDROXYL OR HALOGEN
7 : (AB)2(XO4)Zq·xH2O
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Type Occurrence of Clinoungemachite

Type Locality:Chuquicamata Mine, Chuquicamata District, Calama, El Loa Province, Antofagasta Region, Chile
Geological Setting of type material:Oxidized zone of pyrite deposit in arid environment.

Physical Properties of Clinoungemachite

Diaphaneity (Transparency):Transparent
Colour:Colorless to pale yellow

Crystallography of Clinoungemachite

Crystal System:Monoclinic
Class (H-M):2/m - Prismatic
Morphology:Crystals thick tabular {001}, pseudo-rhombohedral. Indistinguishable from crystals of ungemachite.

Chemical Properties of Clinoungemachite

Formula:
(Na, K, Fe, SO
 
4
)
Simplified for copy/paste:(Na, K, Fe, SO4)
Essential elements:Na
All elements listed in formula:Fe, K, Na, O, S
Empirical Formula:
K
 
3
Na
 
8
Fe
3+
 
(SO
 
4
)
 
6
(NO
 
3
)
 
2
· 6H
 
2
O

Relationship of Clinoungemachite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
7.DG.05Darapskite
Na
 
3
(SO
 
4
)(NO
 
3
) · H
 
2
O
7.DG.10Humberstonite
Na
 
7
K
 
3
Mg
 
2
(SO
 
4
)
 
6
(NO
 
3
)
 
2
· 6H
 
2
O
7.DG.10Ungemachite
K
 
3
Na
 
8
Fe(SO
 
4
)
 
6
(NO
 
3
)
 
2
· 6H
 
2
O
7.DG.15Bentorite
Ca
 
6
(Cr
3+
 
,Al)
 
2
(SO
 
4
)
 
3
(OH)
 
12
· 26H
 
2
O
7.DG.15Charlesite
Ca
 
6
(Al,Si)
 
2
(SO
 
4
)
 
2
[B(OH)
 
4
](OH,O)
 
12
· 26H
 
2
O
7.DG.15Ettringite
Ca
 
6
Al
 
2
(SO
 
4
)
 
3
(OH)
 
12
· 26H
 
2
O
7.DG.15Jouravskite
Ca
 
3
Mn
4+
 
(SO
 
4
}(CO
 
3
)(OH)
 
6
· 12H
 
2
O
7.DG.15Sturmanite
Ca
 
6
(Fe
3+
 
,Al,Mn
3+
 
)
 
2
(SO
 
4
)
 
2
[B(OH)
 
4
](OH)
 
12
· 25H
 
2
O
7.DG.15Thaumasite
Ca
 
3
(SO
 
4
)[Si(OH)
 
6
](CO
 
3
) · 12H
 
2
O
7.DG.15Carraraite
Ca
 
3
(SO
 
4
)[Ge(OH)
 
6
](CO
 
3
) · 12H
 
2
O
7.DG.15Buryatite
Ca
 
3
(Si,Fe,Al)(SO
 
4
)[B(OH)
 
4
]O(OH)
 
5
· 12H
 
2
O
7.DG.20Rapidcreekite
Ca
 
2
(SO
 
4
)(CO
 
3
) · 4H
 
2
O
7.DG.20Korkinoite
Ca
 
4
(SO
 
4
)
 
2
(CO
 
3
)
 
2
· 9(H
 
2
O)
7.DG.25Tatarskite
Ca
 
6
Mg
 
2
(SO
 
4
)
 
2
(CO
 
3
)
 
2
(OH)
 
4
Cl
 
4
· 7H
 
2
O
7.DG.30Nakauriite
Cu
 
8
(SO
 
4
)
 
4
(CO
 
3
)(OH)
 
6
· 48H
 
2
O
7.DG.35Chessexite
(Na,K)
 
4
Ca
 
2
(Mg,Zn)
 
3
Al
 
8
(SO
 
4
)
 
10
(SiO
 
4
)
 
2
· 40H
 
2
O
7.DG.40Carlosruizite
K
 
6
(Na,K)
 
4
Na
 
6
Mg
 
10
(SeO
 
4
)
 
12
(IO
 
3
)
 
12
· 12H
 
2
O
7.DG.40Fuenzalidaite
K
 
6
(Na,K)
 
4
Na
 
6
Mg
 
10
(SO
 
4
)
 
12
(IO
 
3
)
 
12
· 12H
 
2
O
7.DG.45Chelyabinskite
(Ca,Mg)
 
3
(SO
 
4
,CO
 
3
)
 
2
[Si(OH)
 
6
] · 9H
 
2
O (?)

Other Names for Clinoungemachite

Synonyms:
Clino-ungemachite
Other Languages:
German:Clinoungemachit
Klinoungemachit
Spanish:Clinoungemachita

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 Clinoungemachite

Reference List:

- +
Peacock, M. A. & Bandy, M. C. (1938): Ungemachite and clino-ungemachite: new minerals from Chile. American Mineralogist 23: 314-328.

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, 1124 pp.: 597-598.

Internet Links for Clinoungemachite

Search Engines:
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  • External Links:
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  • Localities for Clinoungemachite

    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.
    (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.
    Chile
     
    • Antofagasta Region
      • El Loa Province
        • Calama
          • Chuquicamata District
    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: 597; American Mineralogist (1938): 23: 314.
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    Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of thousands of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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