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Svyazhinite

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Formula:
(Mg,Mn2+,Ca)(Al,Fe3+)(SO4)2F · 14H2O
System:
Triclinic
Colour:
Colourless (crystals), ...
Hardness:
2 - 3
Member of:
Name:
Named after Nikolai Vasil'evich Svyazhin (1927-1967), Russian mineralogist, Ural Mining Institute, Sverdlovsk, Russia.
Aubertite Group

Classification of Svyazhinite

Approved 1983
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
31.9.8.2

31 : HYDRATED SULFATES CONTAINING HYDROXYL OR HALOGEN
9 : (AB)(XO4)Zq·xH2O
26.11

26 : Sulphates with Halide
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Type Occurrence of Svyazhinite

Year of Discovery:
1983

Physical Properties of Svyazhinite

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

Optical Data of Svyazhinite

Type:
Biaxial (-)
RI values:
nα = 1.423 nβ = 1.439 nγ = 1.444
2V:
Calculated: 56°
Max Birefringence:
δ = 0.021
Image 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,Mn2+,Ca)(Al,Fe3+)(SO4)2F · 14H2O
Essential elements:
All elements listed in formula:
Common Impurities:
Ca

Relationship of Svyazhinite to other Species

Member of:
Other Members of Group:
AubertiteCuAl(SO4)2Cl · 14H2O
Magnesioaubertite(Mg,Cu)Al(SO4)2Cl · 14H2O
7.DB.05AubertiteCuAl(SO4)2Cl · 14H2O
7.DB.05Magnesioaubertite(Mg,Cu)Al(SO4)2Cl · 14H2O
7.DB.10KhademiteAl(SO4)F · 5H2O
7.DB.10RostiteAl(SO4)(OH) · 5H2O
7.DB.15JurbaniteAl(SO4)(OH) · 5H2O
7.DB.20Minasragrite(V4+O)(SO4) · 5H2O
7.DB.20Orthominasragrite(V4+O)(SO4) · 5H2O
7.DB.20Anorthominasragrite(V4+O)(SO4) · 5H2O
7.DB.25Bobjonesite(V4+O)(SO4) · 3H2O
7.DB.30AmarantiteFe23+(SO4)2O · 7H2O
7.DB.30HohmanniteFe23+(SO4)2O · 8H2O
7.DB.30MetahohmanniteFe23+(SO4)2O · 4H2O
7.DB.35AluminocopiapiteAl2/3Fe43+(SO4)6(OH)2 · 20H2O
7.DB.35CalciocopiapiteCaFe4(SO4)6(OH)2 · 10H2O
7.DB.35CopiapiteFe2+Fe43+(SO4)6(OH)2 · 20H2O
7.DB.35CuprocopiapiteCuFe4(SO4)6(OH)2 · 20H2O
7.DB.35FerricopiapiteFe5(SO4)6O(OH) · 20H2O
7.DB.35MagnesiocopiapiteMgFe43+(SO4)6(OH)2 · 20H2O
7.DB.35ZincocopiapiteZnFe43+(SO4)6(OH)2 · 18H2O
26.1KogarkoiteNa3(SO4)F
26.2SulphohaliteNa6(SO4)2FCl
26.3SchaireriteNa3(SO4)(F,Cl)
26.4GaleiteNa15(SO4)5F4Cl
26.5ConnelliteCu19(SO4)(OH)32Cl4 · 3H2O
26.6ChlorothioniteK2Cu(SO4)Cl2
26.7KamchatkiteKCu3(SO4)2OCl
26.8SpangoliteCu6Al(SO4)(OH)12Cl · 3H2O
26.9AubertiteCuAl(SO4)2Cl · 14H2O
26.10Magnesioaubertite(Mg,Cu)Al(SO4)2Cl · 14H2O
26.12D'AnsiteNa21Mg(SO4)10Cl3
26.13AnhydrokainiteKMg(SO4)Cl
26.14KainiteKMg(SO4)Cl · 3H2O
26.15Mosesite(Hg2N)(Cl,SO4,MoO4) · H2O
26.16Kleinite(Hg2N)(Cl,SO4) · nH2O
26.17WilcoxiteMgAl(SO4)2F · 17H2O
26.18CreediteCa3SO4Al2F8(OH)2 · 2H2O
26.19LannoniteMg2Ca4Al4(SO4)8F8 · 24H2O
26.20Chukhrovite-(Y)Ca3(Y,Ce)[F|SO4|(AlF6)2] · 10H2O
26.21Chukhrovite-(Ce)Ca3(Ce,Y)[F|SO4|(AlF6)2] · 10H2O
26.22GrandreefitePb2(SO4)F2
26.23PseudograndreefitePb6(SO4)F10
26.24SundiusitePb10(SO4)O8Cl2
26.25CaracoliteNa3Pb2(SO4)3Cl
26.26MammothitePb6Cu4AlSb5+O2(OH)16Cl4(SO4)2
26.27AtlasoviteK(BiO)Cu6Fe3+(SO4)5O3Cl
26.28XitieshaniteFe3+(SO4)Cl · 6H2O
26.29NabokoiteKCu7(SO4)5(Te4+O3)OCl

Other Names for Svyazhinite

Name in Other Languages:
German:Svyazhinit
Spanish:Svyazhinita

Other Information

Health Risks:
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

Localities for Svyazhinite

(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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 (TL)
 
  • 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
Mineral and/or Locality  
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