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Shafranovskite

A valid IMA mineral species
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04946620014947993421632.jpg
Shafranovskite, etc.

Rasvumchorr Mt, Khibiny Massif, Murmansk Oblast, Russia
05828240014947993421607.jpg
Shafranovskite

Rasvumchorr Mt, Khibiny Massif, Murmansk Oblast, Russia
01784690014957507686476.jpg
Shafranovskite, etc.

Apatitovyi Tsirk, Rasvumchorr Mine, Rasvumchorr Mt, Khibiny Massif, Murmansk Oblast, Russia
00485730014957574205738.jpg
Shafranovskite, etc.

Rasvumchorr Mt, Khibiny Massif, Murmansk Oblast, Russia
05833920014948217791414.jpg
Shafranovskite

Rasvumchorr Mt, Khibiny Massif, Murmansk Oblast, Russia
08826710014948217799283.jpg
Shafranovskite, etc.

Apatitovyi Tsirk, Rasvumchorr Mine, Rasvumchorr Mt, Khibiny Massif, Murmansk Oblast, Russia
04946620014947993421632.jpg
Shafranovskite, etc.

Rasvumchorr Mt, Khibiny Massif, Murmansk Oblast, Russia
05828240014947993421607.jpg
Shafranovskite

Rasvumchorr Mt, Khibiny Massif, Murmansk Oblast, Russia
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About ShafranovskiteHide

03895620014947161889681.jpg
Academician Illarion Illarionovich Shafranovskii
Formula:
Na3K2(Mn,Fe,Na)4[Si9(O,OH)27](OH)2 · nH2O
Colour:
Dark green to olive-green
Lustre:
Vitreous
Hardness:
2 - 3
Specific Gravity:
2.76 - 2.78
Crystal System:
Trigonal
Name:
Named after Ilarion Ilarionovich Shafranovskiy (Иларион Иларионович Шафрановский) (24 March 1907, St. Petersburg , Russian Empire - 1 July 1994), Professor of Mineralogy and Crystallography, Mining Institute, St. Petersburg, Russia.

Visually resembles zakharovite, UM1990-85-SiO:AlCaFeHMnNa, UM1990-89-SiO:CaFFeHKNa, UM1990-93-SiO:FeHNa, and UM1990-94-SiO:FFeHNaTi.


Unique IdentifiersHide

Mindat ID:
3629
Long-form identifier:
mindat:1:1:3629:6
GUID
(UUID V4):
781ce02e-bab5-46d9-8377-0cc90dfcb378

Classification of ShafranovskiteHide

IMA status:
Approved
First published:
1982
Type description reference:
Khomyakov, A.P., Vrublevskaya, Z.V., Zvyagin, B.B., Mateeva, N.A., Piloyan, G.O. (1982) Shafranovskite (Na,K)6(Mn,Fe)3Si9O24·6H2O, a new mineral. Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva: 111(4): 475-480.
Strunz-mindat (2023):
9.EE.65

9 : SILICATES (Germanates)
E : Phyllosilicates
E : Single tetrahedral nets of 6-membered rings connected by octahedral nets or octahedral bands
Dana 8th ed.:
78.3.2.1

78 : Unclassified Silicates
3 :
Hey's CIM Ref.:
14.18.5

14 : Silicates not Containing Aluminum
18 : Silicates of Mn and Na, K, Mg, Ca or Fe

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.

SymbolSourceReference
SfnIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43
SfnWarr (2020)Warr, L.N. (2020) Recommended abbreviations for the names of clay minerals and associated phases. Clay Minerals, 55, 261–264 doi:10.1180/clm.2020.30

Physical Properties of ShafranovskiteHide

Lustre:
Vitreous
Transparency:
Translucent
Comment:
Vitreous to tarnished
Colour:
Dark green to olive-green
Comment:
Alters to greenish yellow, then to ochre-yellow
Streak:
Green to yellow
Hardness:
2 - 3 on Mohs scale
Cleavage:
Perfect
on (0001)
Fracture:
Conchoidal
Density:
2.76 - 2.78 g/cm3 (Measured)    2.83 g/cm3 (Calculated)

Optical Data of ShafranovskiteHide

Type:
Uniaxial (-)
RI values:
nω = 1.587(2) nε = 1.570(2)
Max Birefringence:
δ = 0.017
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Low

Chemical Properties of ShafranovskiteHide

Formula:
Na3K2(Mn,Fe,Na)4[Si9(O,OH)27](OH)2 · nH2O
Elements listed:
Fe, H, K, Mn, Na, O, Si - search for minerals with similar chemistry
Common Impurities:
Ti,Al,Mg,Ca

Crystallography of ShafranovskiteHide

Crystal System:
Trigonal
Class (H-M):
3m - Ditrigonal Pyramidal
Space Group:
P3 1c
Cell Parameters:
a = 14.519(3) Å, c = 21.062(6) Å
Ratio:
a:c = 1 : 1.451
Unit Cell V:
3,845.06 ų (Calculated from Unit Cell)
Z:
6
Morphology:
Aggregates (up to 5mm in diameter of olive-green equant grains (up to 0.,1 mm)

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
10.54 Å(100)
3.51 Å(70)
2.787 Å(60)
2.975 Å(50b)
3.60 Å(45b)
10.77 Å(35)

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 4b: Highly evolved igneous rocks>3.0
35 : Ultra-alkali and agpaitic igneous rocks

Type Occurrence of ShafranovskiteHide

Co-Type Localities:
ⓘ Rasvumchorr Mt, Khibiny Massif, Murmansk Oblast, Russia
ⓘ Yubileinaya pegmatite, Karnasurt Mountain, Lovozersky District, Murmansk Oblast, Russia
General Appearance of Type Material:
granular aggregates, to 5 mm.
Place of Conservation of Type Material:
Geology Museum, Kola Branch, Academy of Sciences, Apatity, 5713/1; Mining Institute, St. Petersburg, 1202/1; Vernasdsky Geological Institute, 57772; A.E. Fersman Mineralogical Museum, Academy of Sciences, Moscow, Russia, 81593.
Geological Setting of Type Material:
A sodalite-nepheline-aegirine-microcline vein in urtite
Reference:
Khomyakov, A.P., Vrublevskaya, Z.V., Zvyagin, B.B., Mateeva, N.A., Piloyan, G.O. (1982) Shafranovskite (Na,K)6(Mn,Fe)3Si9O24·6H2O, a new mineral. Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva: 111(4): 475-480.
Download:
https://rruff.info/rruff_1.0/uploads/ZVMO111N4_475.pdf

Synonyms of ShafranovskiteHide

Other Language Names for ShafranovskiteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
3 photos of Shafranovskite associated with AegirineNaFe3+Si2O6
2 photos of Shafranovskite associated with Lamprophyllite(Na,Mn2+)3(Sr,Na)2(Ti,Fe3+)3(Si2O7)2O2(OH,O,F)2
2 photos of Shafranovskite associated with MicroclineK(AlSi3O8)
2 photos of Shafranovskite associated with NephelineNa3K(Al4Si4O16)
2 photos of Shafranovskite associated with VilliaumiteNaF
1 photo of Shafranovskite associated with EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2

Related Minerals - Strunz-mindat GroupingHide

9.EE.CairncrossiteSr2Ca7-xNa2x(Si4O10)4(OH)2(H2O)15-xTric. 1 : P1
9.EE.05BementiteMn7Si6O15(OH)8Mon.
9.EE.07InnsbruckiteMn33(Si2O5)14(OH)38Mon. m : Bm
9.EE.10BrokenhilliteMn8Si6O15(OH)10Hex. 6mm : P63mc
9.EE.10Pyrosmalite-(Fe)Fe2+8Si6O15(OH,Cl)10Trig. 3m (3 2/m) : P3m1
9.EE.10FriedeliteMn2+8Si6O15(OH,Cl)10Mon. 2/m : B2/m
9.EE.10Pyrosmalite-(Mn)Mn2+8Si6O15(OH,Cl)10Trig. 3m (3 2/m) : P3m1
9.EE.10Mcgillite(Mn,Fe)8Si6O15(OH)8Cl2Mon. 2/m : B2/m
9.EE.15Nelenite(Mn,Fe)16(Si12O30)(OH)14[As3+3O6(OH)3]Trig. 3m (3 2/m) : R3m
9.EE.15SchalleriteMn2+16As3Si12O36(OH)17Trig. 3m : P3m1
9.EE.20Palygorskite(Mg,Al)2Si4O10(OH) · 4H2OMon. 2/m : B2/m
9.EE.20TuperssuatsiaiteNa2(Fe3+,Mn2+)3Si8O20(OH)2 · 4H2OMon. 2/m : B2/m
9.EE.20YofortieriteMn5Si8O20(OH)2 · 8-9H2OMon. 2/m : B2/m
9.EE.20WindhoekiteCa2Fe3+2.67[Si8O20](OH)4 · 10H2O Mon. 2/m : B2/m
9.EE.20Unnamed (Na-Ca-Fe-Silicate-Hydrate)NaCa(Fe2+,Al,Mn)5[Si8O19(OH)](OH)7 · 5H2OTric. 1 : P1
9.EE.20Windmountainite◻Fe3+2Mg2Si8O20(OH)2 · 8H2OMon. 2/m : B2/m
9.EE.25Falcondoite(Ni,Mg)4Si6O15(OH)2 · 6H2OOrth.
9.EE.25LoughliniteNa2Mg3Si6O16 · 8H2OOrth. mmm (2/m 2/m 2/m)
9.EE.25SepioliteMg4(Si6O15)(OH)2 · 6H2OOrth. mmm (2/m 2/m 2/m) : Pnna
9.EE.25Kalifersite(K,Na)5Fe3+7Si20O50(OH)6 · 12H2OTric. 1 : P1
9.EE.30GyroliteNaCa16Si23AlO60(OH)8 · 14H2OTric. 1 : P1
9.EE.30OrlymaniteCa4Mn3Si8O20(OH)6 · 2H2OHex.
9.EE.30TungusiteCa4Fe2Si6O15(OH)6Tric. 1 : P1
9.EE.35Reyerite(Na,K)2Ca14(Si,Al)24O58(OH)8 · 6H2OTrig. 3 : P3
9.EE.35Truscottite(Ca,Mn)14Si24O58(OH)8 · 2H2OTrig.
9.EE.35KodamaiteNa3(Ca5Na)Si16O36(OH)4F2 · (14-x)H2O Tric. 1 : P1
9.EE.40NatrosiliteNa2Si2O5Mon. 2/m : P21/b
9.EE.45MakatiteNa2Si4O8(OH)2 · 4H2OMon. 2/m : P21/b
9.EE.50VarennesiteNa8Mn2Si10O25(OH,Cl)2 · 12H2OOrth. mmm (2/m 2/m 2/m) : Cmcm
9.EE.55RaiteNa4Mn2+3Ti0.25Si8O20(OH)2 · 10H2OOrth. 2 2 2 : C2 2 2
9.EE.60IntersiliteNa6Mn2+Ti[Si10O24(OH)](OH)3 · 4H2OMon.
9.EE.65ZakharoviteNa4Mn5Si10O24(OH)6 · 6H2OTrig. 3m
9.EE.70ZeophylliteCa13Si10O28(OH)2F8 · 6H2OTrig. 3 : R3
9.EE.75Minehillite(K,Na)2-3Ca28Zn4Al4Si40O112(OH)16Hex.
9.EE.80Fedorite(Na,K)2-3(Ca4Na3)Si16O38(OH,F)2 · 3.5H2OTric. 1 : P1
9.EE.80Martinite(Na,◻,Ca)12Ca4(Si,S,B)14B2O38(OH,Cl)2F2 · 4H2OTric. 1 : P1
9.EE.80EllingseniteNa5Ca6Si18O38(OH)13 · 6H2OTric. 1 : P1
9.EE.85Lalondeite(Na,Ca)6(Ca,Na)3Si16O38(F,OH)2 · 3H2OTric. 1 : P1

Other InformationHide

Notes:
Strongly electromagnetic
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for ShafranovskiteHide

References for ShafranovskiteHide

Reference List:
Khomyakov, A.P., Vrublevskaya, Z.V., Zvyagin, B.B., Mateeva, N.A., Piloyan, G.O. (1982) Shafranovskite (Na,K)6(Mn,Fe)3Si9O24·6H2O, a new mineral. Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva: 111(4): 475-480.
Khomyakov, A.P., Vrublevskaya, Z.V., Zvyagin, B.B., Mateeva, N.A., Piloyan, G.O. (1982) Shafranovskite (Na,K)6(Mn,Fe)3Si9O24·6H2O, a new mineral. Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva: 111(4): 475-480.
Dunn, Pete J., Fleischer, Michael (1983) New mineral names. American Mineralogist, 68 (5-6) 642-645 p.644
Krivovichev, S.V., Yakovenchuk, V.N., Armbruster, Th., Pakhomovsky, Y.A., Weber, H.-P., Depmeier, W. (2004) Synchrotron X-ray diffraction study of the structure of shafranovskite, K2Na3(Mn,Fe,Na)4 [Si9(O,OH)27](OH)2·nH2O, a rare manganese phyllosilicate from the Kola peninsula, Russia. The American Mineralogist: 89: 1816-1821.

Localities for ShafranovskiteHide

This 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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Russia
 
  • Murmansk Oblast
    • Khibiny Massif
Pekov, Igor V. (1998) Minerals first discovered on the territory of the former Soviet Union. Ocean Pictures, Moscow. 369pp.
      • Koashva Mt
Pekov, Igor V. (1998) Minerals first discovered on the territory of the former Soviet Union. Ocean Pictures, Moscow. 369pp.
Pekov, Igor V. (1998) Minerals first discovered on the territory of the former Soviet Union. Ocean Pictures, Moscow. 369pp.
Pekov, Igor V. (1998) Minerals first discovered on the territory of the former Soviet Union. Ocean Pictures, Moscow. 369pp.
Pekov, Igor V. (1998) Minerals first discovered on the territory of the former Soviet Union. Ocean Pictures, Moscow. 369pp.
        • Rasvumchorr Mine
Pekov I.V., Zubkova N.V., Filinchuk Ya.E., Chukanov N.V., Zadov A.E., Pushcharovsky D.Yu., Gobechiya E.R. (2010): Shlykovite, KCa[Si4O9(OH)]·3H2O, and cryptophyllite, K2Ca[Si4O10]·5H2O, two new mineral species from the Khibiny alkaline complex, Kola Peninsula, Russia. Zapiski RMO, 139(1), 37-50.
    • Lovozersky District
      • Karnasurt Mountain
Khomyakov, A.P., Vrublevskaya, Z.V., Zvyagin, B.B., Mateeva, N.A., Piloyan, G.O. (1982) Shafranovskite (Na,K)6(Mn,Fe)3Si9O24·6H2O, a new mineral. Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva: 111(4): 475-480.
Dunn, Pete J., Fleischer, Michael (1983) New mineral names. American Mineralogist, 68 (5-6) 642-645 p.644
Pekov, Igor V. (1998) Minerals first discovered on the territory of the former Soviet Union. Ocean Pictures, Moscow. 369pp.
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