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Svyazhinite

Formula:
(Mg,Mn
2+
 
,Ca)(Al,Fe
3+
 
)[F|(SO
 
4
)
 
2
] · 14H
 
2
O
System:TriclinicColour:Colourless (crystals), ...
Hardness:2 - 3
Name:Named after Nikolai Vasil'evich Svyazhin (1927-1967), Russian mineralogist.


Aubertite Group

Classification of Svyazhinite

IMA status:Approved 1983
Strunz 8th edition ID:6/D.07-20
Nickel-Strunz 10th (pending) edition ID:7.DB.05

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
D : Sulfates (selenates, etc.) with additional anions, with H2O
B : With only medium-sized cations; insular octahedra and finite units
Dana 8th edition ID:31.9.8.2

31 : HYDRATED SULFATES CONTAINING HYDROXYL OR HALOGEN
9 : (AB)(XO4)Zq·xH2O
Hey's CIM Ref.:26.11

26 : Sulphates with Halide
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Type Occurrence of Svyazhinite

Type Locality:Chernaya Rechka reserve-guard station, Miass (Miask), Ilmen Natural Reserve, Ilmen Mts, Chelyabinsk Oblast', Southern Urals, Urals Region, Russia
Year of Discovery:1984

Physical Properties of Svyazhinite

Lustre:Vitreous
Colour:Colourless (crystals), yellowish pink
Hardness (Mohs):2 - 3

Crystallography of Svyazhinite

Crystal System:Triclinic
Cell Parameters:a = 6.21Å, b = 13.3Å, c = 6.25Å
α = 90.15°, β = 93.56°, γ = 82.08°
Ratio:a:b:c = 0.467 : 1 : 0.47
Unit Cell Volume:V 510.29 ų (Calculated from Unit Cell)

Optical Data of Svyazhinite

Type:Biaxial (-)
RI values: nα = 1.423 nβ = 1.439 nγ = 1.444
2V:Calculated: 56°
Maximum Birefringence:δ = 0.021

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 Svyazhinite

Formula:
(Mg,Mn
2+
 
,Ca)(Al,Fe
3+
 
)[F|(SO
 
4
)
 
2
] · 14H
 
2
O
Essential elements:Al, F, H, Mg, O, S
All elements listed in formula:Al, Ca, F, Fe, H, Mg, Mn, O, S
Common Impurities:Ca

Relationship of Svyazhinite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
7.DB.05Aubertite
CuAl[Cl|(SO
 
4
)
 
2
] · 14H
 
2
O
7.DB.05Magnesioaubertite
(Mg,Cu)Al[Cl|(SO
 
4
)
 
2
] · 14H
 
2
O
7.DB.05Wilcoxite
MgAl[F|(SO
 
4
)
 
2
] · 18H
 
2
O
7.DB.10Khademite
Al[F|SO
 
4
] · 5H
 
2
O
7.DB.10Rostite
Al[OH|SO
 
4
] · 5H
 
2
O
7.DB.15Jurbanite
Al[OH|SO
 
4
] · 5H
 
2
O
7.DB.20Minasragrite
(V
4+
 
O)[SO
 
4
] · 5H
 
2
O
7.DB.20Orthominasragrite
(V
4+
 
O)[SO
 
4
] · 5H
 
2
O
7.DB.20Anorthominasragrite
(V
4+
 
O)[SO
 
4
] · 5H
 
2
O
7.DB.25Stanleyite
(V
4+
 
O)[SO
 
4
] · 6H
 
2
O
7.DB.25Bobjonesite
(V
4+
 
O)[SO
 
4
] · 3H
 
2
O
7.DB.30Amarantite
Fe
3+
2
[O|(SO
 
4
)
 
2
] · 7H
 
2
O
7.DB.30Hohmannite
Fe
3+
2
[O|(SO
 
4
)
 
2
] · 8H
 
2
O
7.DB.30Metahohmannite
Fe
3+
2
[O|(SO
 
4
)
 
2
] · 4H
 
2
O
7.DB.35Aluminocopiapite
Al
 
2/3
Fe
3+
4
[OH|(SO
 
4
)
 
3
]
 
2
 · 20H
 
2
O
7.DB.35Calciocopiapite
CaFe
 
4
(SO
 
4
)
 
6
(OH)
 
2
·10H
 
2
O
7.DB.35Copiapite
Fe
2+
 
Fe
3+
4
[OH|(SO
 
4
)
 
3
]
 
2
 · 20H
 
2
O
7.DB.35Cuprocopiapite
CuFe
 
4
(SO
 
4
)
 
6
(OH)
 
2
·20H
 
2
O
7.DB.35Ferricopiapite
Fe
 
5
(SO
 
4
)
 
6
O(OH)·20H
 
2
O
7.DB.35Magnesiocopiapite
MgFe
3+
4
[OH|(SO
 
4
)
 
3
]
 
2
 · 20H
 
2
O
7.DB.35Zincocopiapite
ZnFe
3+
4
[OH|(SO
 
4
)
 
3
]
 
2
 · 18H
 
2
O
7.DB.40Mcalpineite
Cu
 
3
[TeO
 
6
] · H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
26.1Kogarkoite
Na
 
3
[F|SO
 
4
]
26.2Sulphohalite
Na
 
6
[F|Cl|(SO
 
4
)
 
2
]
26.3Schairerite
Na
 
3
[(F,Cl)|SO
 
4
]
26.4Galeite
Na
 
15
[F
 
4
|Cl|(SO
 
4
)
 
5
]
26.5Connellite
Cu
 
19
[(OH)
 
32
|SO
 
4
|Cl
 
4
] · 3H
 
2
O
26.6Chlorothionite
K
 
2
Cu[Cl
 
2
|SO
 
4
]
26.7Kamchatkite
KCu
 
3
[O|Cl|(SO
 
4
)
 
2
]
26.8Spangolite
Cu
 
6
Al[(OH)
 
12
|Cl|SO
 
4
] · 3H
 
2
O
26.9Aubertite
CuAl[Cl|(SO
 
4
)
 
2
] · 14H
 
2
O
26.10Magnesioaubertite
(Mg,Cu)Al[Cl|(SO
 
4
)
 
2
] · 14H
 
2
O
26.12D'Ansite
Na
 
21
Mg(SO
 
4
)
 
10
Cl
 
3
26.13Anhydrokainite
KMgClSO
 
4
26.14Kainite
KMg[Cl|SO
 
4
] · 3H
 
2
O
26.15Mosesite
[Hg
 
2
N]
+
 
(Cl,SO
 
4
,MoO
 
4
) · H
 
2
O
26.16Kleinite
[Hg
 
2
N]
+
3
Cl
 
2
S
 
0.5
 · H
 
2
O
26.17Wilcoxite
MgAl[F|(SO
 
4
)
 
2
] · 18H
 
2
O
26.18Creedite
Ca
 
3
[SO
 
4
|Al
 
2
F
 
8
(OH)
 
2
] · 2H
 
2
O
26.19Lannonite
HCa
 
4
Mg
 
2
Al
 
4
(SO
 
4
)
 
8
F
 
9
·32H
 
2
O
26.20Chukhrovite-(Y)
Ca
 
3
(Y,Ce)[F|SO
 
4
|(AlF
 
6
)
 
2
] · 10H
 
2
O
26.21Chukhrovite-(Ce)
Ca
 
3
(Ce,Y)[F|SO
 
4
|(AlF
 
6
)
 
2
] · 10H
 
2
O
26.22Grandreefite
Pb
 
2
SO
 
4
F
 
2
26.23Pseudograndreefite
Pb
 
6
SO
 
4
F
 
10
26.24Sundiusite
Pb
 
10
[O
 
8
|SO
 
4
|Cl
 
2
]
26.25Caracolite
Na
 
3
Pb
 
2
[Cl|(SO
 
4
)
 
3
]
26.26Mammothite
Pb
 
6
Cu
 
4
AlSb[(OH)
 
9
|Cl
 
2
|SO
 
4
]
 
2
26.27Atlasovite
K(BiO)Cu
 
6
Fe
3+
 
[Cl|O
 
3
|(SO
 
4
)
 
5
]
26.28Xitieshanite
Fe
3+
 
[Cl|SO
 
4
] · 6H
 
2
O
26.29Nabokoite
KCu
 
7
Te
4+
 
[Cl|O
 
4
|(SO
 
4
)
 
5
]

Other Names for Svyazhinite

Synonyms:
IMA1983-045
Other Languages:
German:Svyazhinit
Spanish:Svyazhinita

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 Svyazhinite

Reference List:Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva (1984): 113: 347-351.

American Mineralogist (1985): 70: 877.

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    Localities for Svyazhinite

    (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
     
    • Urals Region
      • Southern Urals
        • Chelyabinsk Oblast'
          • Ilmen Mts
            • Ilmen Natural Reserve
              • Miass (Miask)
    No reference listed
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