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Alumoklyuchevskite

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Tolbachik volcano, Kamchatka Oblast', Far-Eastern Region, Russia
© Thomas Witzke

Show Alumoklyuchevskite Photos (2)
Formula:
K
 
3
Cu
 
3
(Al,Fe
3+
 
)[O|(SO
 
4
)
 
2
]
 
2
System:MonoclinicLustre:Vitreous
Hardness:2
Name:For being the aluminium dominant analogue of Klyuchevskite
This page provides mineralogical data about Alumoklyuchevskite.

Classification of Alumoklyuchevskite

IMA status:Approved 1993
Strunz 8th edition ID:6/B.05-45
Nickel-Strunz 10th (pending) edition ID:7.BC.45

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
B : Sulfates (selenates, etc.) with additional anions, without H2O
C : With medium-sized and large cations
Dana 8th edition ID:28.4.6.2

28 : ANHYDROUS ACID AND NORMAL SULFATES
4 : Miscellaneous
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Type Occurrence of Alumoklyuchevskite

Type Locality:Great Fissure (Main Fracture) eruption, Tolbachik volcano, Kamchatka Oblast', Far-Eastern Region, Russia
Year of Discovery:1995

Physical Properties of Alumoklyuchevskite

Lustre:Vitreous
Hardness (Mohs):2

Crystallography of Alumoklyuchevskite

Crystal System:Monoclinic
Cell Parameters:a = 18.42Å, b = 5.13Å, c = 18.69Å
β = 101.72°
Ratio:a:b:c = 3.591 : 1 : 3.643
Unit Cell Volume:V 1,729.28 ų (Calculated from Unit Cell)

Optical Data of Alumoklyuchevskite

Type:Biaxial (+)
RI values: nα = 1.542 nβ = 1.548 nγ = 1.641
2V:Measured: 30° , Calculated: 30°
Maximum Birefringence:δ = 0.099

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

Chemical Properties of Alumoklyuchevskite

Formula:
K
 
3
Cu
 
3
(Al,Fe
3+
 
)[O|(SO
 
4
)
 
2
]
 
2
Essential elements:Al, Cu, K, O, S
All elements listed in formula:Al, Cu, Fe, K, O, S

Relationship of Alumoklyuchevskite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
7.BC.05D'Ansite
Na
 
21
Mg(SO
 
4
)
 
10
Cl
 
3
7.BC.10Alunite
KAl
 
3
[(OH)
 
3
|SO
 
4
]
 
2
7.BC.10Ammonioalunite
(NH
 
4
)Al
 
3
[(OH)
 
3
|SO
 
4
]
 
2
7.BC.10Ammoniojarosite
(NH
 
4
)Fe
3+
3
[(OH)
 
3
|SO
 
4
]
 
2
7.BC.10Argentojarosite
AgFe
3+
3
[(OH)
 
3
|SO
 
4
]
 
2
7.BC.10Beaverite
Pb(Fe
3+
 
,Cu,Al)
 
3
[(OH)
 
3
|SO
 
4
]
 
2
7.BC.10Dorallcharite
(Tl,K)Fe
3+
3
[(OH)
 
3
|SO
 
4
]
 
2
7.BC.10Huangite
CaAl
 
6
[(OH)
 
3
|SO
 
4
]
 
4
7.BC.10Hydroniumjarosite
(H
 
3
O)Fe
3+
3
(SO
 
4
)
 
2
(OH)
 
6
7.BC.10Jarosite
KFe
3+
 
 
3
[(OH)
 
3
|SO
 
4
]
 
2
7.BC.10Minamiite
(Na,Ca
 
0.5
,K)Al
 
3
[(OH)
 
3
|SO
 
4
]
 
2
7.BC.10Natroalunite
(Na,K)Al
 
3
[(OH)
 
3
|SO
 
4
]
 
2
7.BC.10Natrojarosite
NaFe
 
3
[(OH)
 
3
|SO
 
4
]
 
2
7.BC.10Osarizawaite
Pb(Al,Cu)
 
3
[(OH,H
 
2
O)
 
3
|SO
 
4
]
 
2
7.BC.10Plumbojarosite
PbFe
3+
6
[(OH)
 
3
|SO
 
4
]
 
4
7.BC.10Schlossmacherite
(H
 
3
O,Ca)Al
 
3
[(OH)
 
6
|(SO
 
4
,AsO
 
4
)
 
2
]
7.BC.10Walthierite
BaAl
 
6
[(OH)
 
3
|SO
 
4
]
 
4
7.BC.15Ye'elimite
Ca
 
4
Al
 
6
[O
 
12
|SO
 
4
]
7.BC.20Atlasovite
K(BiO)Cu
 
6
Fe
3+
 
[Cl|O
 
3
|(SO
 
4
)
 
5
]
7.BC.20Nabokoite
KCu
 
7
Te
4+
 
[Cl|O
 
4
|(SO
 
4
)
 
5
]
7.BC.25Chlorothionite
K
 
2
Cu[Cl
 
2
|SO
 
4
]
7.BC.30Euchlorine
KNaCu
 
3
[O|(SO
 
4
)
 
3
]
7.BC.30Fedotovite
K
 
2
Cu
 
3
[O|(SO
 
4
)
 
3
]
7.BC.35Kamchatkite
KCu
 
3
[O|Cl|(SO
 
4
)
 
2
]
7.BC.40Piypite
K
 
2
Cu
 
2
[O|(SO
 
4
)
 
2
]
7.BC.45Klyuchevskite
K
 
3
Cu
 
3
(Fe
3+
 
,Al)[O|(SO
 
4
)
 
2
]
 
2
7.BC.50Caledonite
Cu
 
2
Pb
 
5
[(OH)
 
6
|CO
 
3
|(SO
 
4
)
 
3
]
7.BC.55Wherryite
Pb
 
7
Cu
 
2
(SO
 
4
)
 
4
(SiO
 
4
)
 
2
(OH)
 
2
7.BC.60Mammothite
Pb
 
6
Cu
 
4
AlSb[(OH)
 
9
|Cl
 
2
|SO
 
4
]
 
2
7.BC.65Linarite
PbCu[(OH)
 
2
|SO
 
4
]
7.BC.65Schmiederite
Pb
 
2
Cu
 
2
[(OH)
 
4
|SeO
 
3
|SeO
 
4
]
7.BC.65Munakataite
Pb
 
2
Cu
 
2
(Se
4+
 
O
 
3
)(SO
 
4
)(OH)
 
4
7.BC.70Chenite
Pb
 
4
Cu[(OH)
 
3
|SO
 
4
]
 
2
7.BC.75Krivovichevite
Pb
 
3
[Al(OH)
 
6
](SO
 
4
)(OH)
7.BC.80Anhydrokainite
KMgClSO
 
4

Other Names for Alumoklyuchevskite

Synonyms:
AluminoklyuchevskiteIMA1993-004
Other Languages:
German:Aluminoklyuchevskit
Alumoklyuchevskit
Spanish:Aluminoklyuchevskita
Alumoklyuchevskita

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 Alumoklyuchevskite

Reference List:Mineralogical Record: 27: 116.

Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva: 124(1): 95-100.

Internet Links for Alumoklyuchevskite

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    Localities for Alumoklyuchevskite

    Hide Locality List
    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.
    Russia
     
    • Far-Eastern Region
      • Kamchatka Oblast'
        • Tolbachik volcano
    		[AmMin 84:685]; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
            • Northern Breakthrough (North Breach)
    		Pavel M. Kartashov analytical data, Elena Yu. Bykova material
    Mineral and/or Locality
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    Copyright © Jolyon Ralph and Ida Chau 1993-2009. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the 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 hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 6th Nov 2009 10:10:02