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Svyazhinite

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Formula:
(Mg,Mn
2+
 
,Ca)(Al,Fe
3+
 
)(SO
 
4
)
 
2
F · 14H
 
2
O
System:TriclinicColour:Colourless (crystals), ...
Hardness:2 - 3
Member of:Aubertite Group
Name:Named after Nikolai Vasil'evich Svyazhin (1927-1967), Russian mineralogist, Ural Mining Institute, Sverdlovsk, Russia.


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:1983

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+
 
)(SO
 
4
)
 
2
F · 14H
 
2
O
Simplified for copy/paste:(Mg,Mn2+,Ca)(Al,Fe3+)(SO4)2F·14H2O
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

Member of:Aubertite Group
Other Members of Group:

- +
Aubertite
CuAl(SO
 
4
)
 
2
Cl · 14H
 
2
O
Magnesioaubertite
(Mg,Cu)Al(SO
 
4
)
 
2
Cl · 14H
 
2
O
Related Minerals - Nickel-Strunz Grouping):

- +
7.DB.05Aubertite
CuAl(SO
 
4
)
 
2
Cl · 14H
 
2
O
7.DB.05Magnesioaubertite
(Mg,Cu)Al(SO
 
4
)
 
2
Cl · 14H
 
2
O
7.DB.10Khademite
Al(SO
 
4
)F · 5H
 
2
O
7.DB.10Rostite
Al(SO
 
4
)(OH) · 5H
 
2
O
7.DB.15Jurbanite
Al(SO
 
4
)(OH) · 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.25Bobjonesite
(V
4+
 
O)(SO
 
4
) · 3H
 
2
O
7.DB.30Amarantite
Fe
3+
2
(SO
 
4
)
 
2
O · 7H
 
2
O
7.DB.30Hohmannite
Fe
3+
2
(SO
 
4
)
 
2
O · 8H
 
2
O
7.DB.30Metahohmannite
Fe
3+
2
(SO
 
4
)
 
2
O · 4H
 
2
O
7.DB.35Aluminocopiapite
Al
 
2/3
Fe
3+
4
(SO
 
4
)
 
6
(OH)
 
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
(SO
 
4
)
 
6
(OH)
 
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
(SO
 
4
)
 
6
(OH)
 
2
· 20H
 
2
O
7.DB.35Zincocopiapite
ZnFe
3+
4
(SO
 
4
)
 
6
(OH)
 
2
· 18H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
26.1Kogarkoite
Na
 
3
(SO
 
4
)F
26.2Sulphohalite
Na
 
6
(SO
 
4
)
 
2
FCl
26.3Schairerite
Na
 
3
(SO
 
4
)(F,Cl)
26.4Galeite
Na
 
15
(SO
 
4
)
 
5
F
 
4
Cl
26.5Connellite
Cu
 
19
(SO
 
4
)(OH)
 
32
Cl
 
4
· 3H
 
2
O
26.6Chlorothionite
K
 
2
Cu(SO
 
4
)Cl
 
2
26.7Kamchatkite
KCu
 
3
(SO
 
4
)
 
2
OCl
26.8Spangolite
Cu
 
6
Al(SO
 
4
)(OH)
 
12
Cl · 3H
 
2
O
26.9Aubertite
CuAl(SO
 
4
)
 
2
Cl · 14H
 
2
O
26.10Magnesioaubertite
(Mg,Cu)Al(SO
 
4
)
 
2
Cl · 14H
 
2
O
26.12D'Ansite
Na
 
21
Mg(SO
 
4
)
 
10
Cl
 
3
26.13Anhydrokainite
KMg(SO
 
4
)Cl
26.14Kainite
KMg(SO
 
4
)Cl · 3H
 
2
O
26.15Mosesite
(Hg
 
2
N)(Cl,SO
 
4
,MoO
 
4
) · H
 
2
O
26.16Kleinite
(Hg
 
2
N)(Cl,SO
 
4
) · nH
 
2
O
26.17Wilcoxite
MgAl(SO
 
4
)
 
2
F · 17H
 
2
O
26.18Creedite
Ca
 
3
SO
 
4
Al
 
2
F
 
8
(OH)
 
2
· 2H
 
2
O
26.19Lannonite
Mg
 
2
Ca
 
4
Al
 
4
(SO
 
4
)
 
8
F
 
8
· 24H
 
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
(SO
 
4
)O
 
8
Cl
 
2
26.25Caracolite
Na
 
3
Pb
 
2
(SO
 
4
)
 
3
Cl
26.26Mammothite
Pb
 
6
Cu
 
4
AlSb
5+
 
O
 
2
(OH)
 
16
Cl
 
4
(SO
 
4
)
 
2
26.27Atlasovite
K(BiO)Cu
 
6
Fe
3+
 
(SO
 
4
)
 
5
O
 
3
Cl
26.28Xitieshanite
Fe
3+
 
(SO
 
4
)Cl · 6H
 
2
O
26.29Nabokoite
KCu
 
7
(SO
 
4
)
 
5
(Te
4+
 
O
 
3
)OCl

Other Names for Svyazhinite

Synonyms:
IMA1983-045Svayjinite
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.

Internet Links for Svyazhinite

Search Engines:
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  • External Links:
  • Look for Svyazhinite on Webmineral
  • Look for Svyazhinite on Athena Mineralogy
  • Look for Svyazhinite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Svyazhinite details from Handbook of Mineralogy (PDF)
  • Mineral Dealers:
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  • Find Svyazhinite on www.crystalclassics.co.uk
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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)
    Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
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