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Fedorite

A valid IMA mineral species
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09416640014946694541844.jpg
Fedorite

Murunskii Massif, Chara and Tokko Rivers Confluence, Aldan Shield, Russia
02297230014946694657352.jpg
Fedorite

Podsnezhnik area, Sirenevyi Kamen' Deposit, Murunskii Massif, Chara and Tokko Rivers Confluence, Aldan Shield, Russia
04087500014950905205314.jpg
Fedorite

Murunskii Massif, Chara and Tokko Rivers Confluence, Aldan Shield, Russia
00966760014946694586027.jpg
Fedorite

Murunskii Massif, Chara and Tokko Rivers Confluence, Aldan Shield, Russia
09416640014946694541844.jpg
Fedorite

Murunskii Massif, Chara and Tokko Rivers Confluence, Aldan Shield, Russia
07409740014946361553155.jpg
Fedorite

Podsnezhnik area, Sirenevyi Kamen' Deposit, Murunskii Massif, Chara and Tokko Rivers Confluence, Aldan Shield, Russia
01167840014947908185465.jpg
Fedorite

Murunskii Massif, Chara and Tokko Rivers Confluence, Aldan Shield, Russia
08114950014990995626303.jpg
Fedorite

Murunskii Massif, Chara and Tokko Rivers Confluence, Aldan Shield, Russia
03787590014946694585747.jpg
Fedorite

Murunskii Massif, Chara and Tokko Rivers Confluence, Aldan Shield, Russia
04634210014946694655646.jpg
Fedorite

Podsnezhnik area, Sirenevyi Kamen' Deposit, Murunskii Massif, Chara and Tokko Rivers Confluence, Aldan Shield, Russia
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About FedoriteHide

07019410014946693059164.jpg
Evgraf Stepanovich Fedorov
Formula:
(Na,K)2-3(Ca4Na3)Si16O38(OH,F)2 · 3.5H2O
Colour:
White, colorless, bright red, raspberry red
Lustre:
Sub-Vitreous, Pearly
Specific Gravity:
2.43 - 2.58
Crystal System:
Triclinic
Member of:
Fedorite Group
Name:
Named in 1968 by A. A. Kukharenko, M. P. Orlova, and A. G. Bulakh in honor of mathematician, crystallographer, and mineralogist Evgraf Stepanovich Fedorov [December 22, 1853 Orenberg, Russia - May 21, 1919 St. Petersburg, Russia]. Fedorov was very interested in group theory and proved important concepts involved in polytypism and wallpaper theory later used in solving crystal structures.
Isostructural with:
Martinite
A white micaceous mineral.

Structurally related to Reyerite Group.


Unique IdentifiersHide

Mindat ID:
1467
Long-form identifier:
mindat:1:1:1467:6
GUID
(UUID V4):
0883fa49-376d-4286-991c-80109b51c9eb

IMA Classification of FedoriteHide

Classification of FedoriteHide

Strunz-mindat (2023):
9.EE.80

9 : SILICATES (Germanates)
E : Phyllosilicates
E : Single tetrahedral nets of 6-membered rings connected by octahedral nets or octahedral bands
Dana 8th ed.:
73.1.3.1

73 : PHYLLOSILICATES Condensed Tetrahedral Sheets
1 : Condensed Tetrahedral Sheets with double layers
Hey's CIM Ref.:
16.10.12

16 : Silicates Containing Aluminum and other Metals
10 : Aluminosilicates of Ca and alkalis

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
FdrIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43
FdrWarr (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 FedoriteHide

Lustre:
Sub-Vitreous, Pearly
Transparency:
Transparent, Translucent
Colour:
White, colorless, bright red, raspberry red
Streak:
White
Tenacity:
Flexible
Cleavage:
Perfect
{001}
Fracture:
Micaceous
Density:
2.43 - 2.58 g/cm3 (Measured)    2.43 g/cm3 (Calculated)

Optical Data of FedoriteHide

Type:
Biaxial (-)
RI values:
nα = 1.522 nβ = 1.530 nγ = 1.531
2V:
Measured: 32° , Calculated: 38°
Birefringence:
0.009
Max Birefringence:
δ = 0.009
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Low
Dispersion:
r < v distinct
Optical Extinction:
X = c, Y = b, Z = a

Chemistry of FedoriteHide

Mindat Formula:
(Na,K)2-3(Ca4Na3)Si16O38(OH,F)2 · 3.5H2O
Elements listed:
Ca, F, H, K, Na, O, Si - search for minerals with similar chemistry

Crystallography of FedoriteHide

Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Space Group:
P1
Setting:
P1
Cell Parameters:
a = 9.676 Å, b = 16.706 Å, c = 13.233 Å
α = 93.35°, β = 114.96°, γ = 90.03°
Ratio:
a:b:c = 0.579 : 1 : 0.792
Unit Cell V:
1,935.23 ų (Calculated from Unit Cell)
Z:
2
Morphology:
Platy micaceous aggregates

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0005719FedoriteMitchell R H, Burns P C (2001) The structure of fedorite: A re-appraisal The Canadian Mineralogist 39 769-7772001Turiy complex, Kola Peninsula, Russia0293
0005720FedoriteMitchell R H, Burns P C (2001) The structure of fedorite: A re-appraisal The Canadian Mineralogist 39 769-7772001Little Murun complex, Sakha, Russia0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
11.7 Å(80)
7.9 Å(20b)
6.0 Å(80)
4.67 Å(30b)
4.38 Å(10)
4.21 Å(70)
4.00 Å(60)
3.85 Å(20)
3.78 Å(10)
3.65 Å(10)
3.56 Å(20)
3.35 Å(40b)
3.24 Å(10)
3.13 Å(80b)
3.04 Å(40)
2.97 Å(90)
2.03 Å(100b)
2.80 Å(40)
2.74 Å(20)
2.67 Å(30)
2.60 Å(60b)
2.42 Å(40)
2.36 Å(30)
2.32 Å(10)
2.26 Å(50)
2.09 Å(30b)
2.02 Å(10)
1.981 Å(50)
1.956 Å(10)
1.915 Å(30)
1.873 Å(10)
1.826 Å(90b)
1.800 Å(20)
1.745 Å(40)
1.722 Å(10)
1.698 Å(20)
1.674 Å(10)
1.657 Å(30)
1.642 Å(10)
1.615 Å(30)
1.596 Å(20)
1.580 Å(30)
1.542 Å(40)
1.485 Å(60)
1.469 Å(10)
1.443 Å(40)
1.373 Å(20)
1.338 Å(50b)
1.322 Å(20)
1.300 Å(30)
1.286 Å(10)
1.275 Å(10)
1.259 Å(30)
1.204 Å(10)
1.186 Å(30)
1.173 Å(20)
1.148 Å(60)
1.137 Å(10)
1.129 Å(30)
Comments:
ICDD 19-466 and ICDD 19-466a

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Near-surface Processes
23 : Subaerial aqueous alteration by non-redox-sensitive fluids (see also #47)
26 : Hadean detrital minerals

Type Occurrence of FedoriteHide

Type Locality:
ⓘ Turii alkaline massif (Turiy massif), Turii Cape, Murmansk Oblast, Russia
Geological Setting of Type Material:
Fenitized sandstone
Associated Minerals at Type Locality:
QuartzNarsarsukiteApophyllite Group
Reference:
Kukharenko, A.A., Orlova, M.P., Bulakh, A.G. (1965) The Caledonian Ultrabasic Alkalic Rocks and Carbonates of the Kola Peninsula and Northern Karelia. Izd. Nedra: 479-481.
Download:
https://rruff.info/rruff_1.0/uploads/CCUARC1965_479.pdf

Other Language Names for FedoriteHide

German:Fedorit
Spanish:Fedorita

Relationship of Fedorite to other SpeciesHide

Member of:
Fedorite Group
Other Members of this group:
Martinite(Na,◻,Ca)12Ca4(Si,S,B)14B2O38(OH,Cl)2F2 · 4H2OTric. 1 : P1
Structurally related to group(s):
Reyerite Group

Common AssociatesHide

Associated Minerals Based on Photo Data:
16 photos of Fedorite associated with Charoite(K,Sr)15-16(Ca,Na)32[Si6O11(O,OH)6]2[Si12O18(O,OH)12]2[Si17O25(O,OH)18]2(OH,F)4 · ~3H2O
7 photos of Fedorite associated with AegirineNaFe3+Si2O6
6 photos of Fedorite associated with TinaksiteK2Na(Ca,Mn2+)2TiO[Si7O18(OH)]
5 photos of Fedorite associated with PectoliteNaCa2Si3O8(OH)
4 photos of Fedorite associated with AgrelliteNaCa2Si4O10F
2 photos of Fedorite associated with DigeniteCu9S5
2 photos of Fedorite associated with MicroclineK(AlSi3O8)
1 photo of Fedorite associated with MiseriteK1.5-x(Ca,Y,REE)5(Si6O15)(Si2O7)(OH,F)2 · yH2O

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◻Al2Mg2◻2Si8O20(OH)2(H2O)4 · 4H2OMon. 2/m : B2/m
9.EE.20TuperssuatsiaiteFe3+Fe3+2(Na◻)◻2Si8O20(OH)2(H2O)4 · 2H2OMon. 2/m : B2/m
9.EE.20YofortieriteMn2+Mn2+2Mn2+2◻2Si8O20(OH)2(H2O)4 · 4H2OMon. 2/m : B2/m
9.EE.20WindhoekiteFe3+(Fe3+1.67◻0.33)Ca2◻2Si8O20(OH)2(H2O)4(OH)2 · 6H2OMon. 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+2Mg2◻2Si8O20(OH)2(H2O)4 · 4H2OMon. 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.55RaiteMn2+Mn2+2Na2(◻1.75Ti0.25)Si8O20(OH)2(H2O)4 · Na(H2O)6Orth. 2 2 2 : C2 2 2
9.EE.60IntersiliteNa6Mn2+Ti[Si10O24(OH)](OH)3 · 4H2OMon.
9.EE.65ShafranovskiteNa3K2(Mn,Fe,Na)4[Si9(O,OH)27](OH)2 · nH2OTrig. 3m : P3 1c
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.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

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 FedoriteHide

References for FedoriteHide

Reference List:
Soviet Physics – Crystallography: 28: 95-96.
Kukharenko, A.A., Orlova, M.P., Bulakh, A.G. (1965) The Caledonian Ultrabasic Alkalic Rocks and Carbonates of the Kola Peninsula and Northern Karelia. Izd. Nedra: 479-481. (in Russian)
Kukharenko, A.A., Orlova, M.P., Bulakh, A.G. (1965) The Caledonian Ultrabasic Alkalic Rocks and Carbonates of the Kola Peninsula and Northern Karelia. Izd. Nedra: 479-481.
Fleischer, M. (1967) New mineral names. American Mineralogist: 52: 559-564 (561-562).
Fleischer, M. (1969) New mineral names. American Mineralogist: 54: 326-330.
Lazebnik, K.A., Lazebnik, Y.D. (1981) The rare silicates-miserite, canasite, fedorite in the charoite rocks. Mineralogy and Geochemistry of the ultrabasic and basic rocks of Yakutia: 32-50.
Sokolova, G.V., Kashaev, A.A., Drits, V.A., Ilyukhin, V.V. (1983) The Crystal Structure of Fedorite. Kristallografiya (Soviet Physics - Crystallography): 28: 170-172. (in Russian)
Dunn, P.J., Fleischer, M., Francis, C.A., Langley, R.H., Kissin, S.A., Shigley, J.E., Vanko, D.A., Zilczer, J.A. (1984) New mineral names. American Mineralogist: 69: 810-815.
Joswig, W., Drits, V.A., Sokolova, G.V. (1988) Refinement of the structure of fedorite. Soviet Physics – Crystallography: 33: 763-765.
Clauss, F., Stemmermann, P., Pentinghaus, H.J. (1995) Synthese eines Na-Ca-Fedorites durch hydrothermal Glasskorrosion. Ber. Deutschen Mineral. Gesselsch.: 7: 44. (abstract)
Mitchell, R. H., Burns, P. C. (2001) The structure of fedorite: a re-appraisal. The Canadian Mineralogist, 39 (3) 769-777 doi:10.2113/gscanmin.39.3.769
Jambor, J.L., Roberts, A.C. (2002) New mineral names. American Mineralogist: 87: 355-358.
Kaneva, E.V.; Shendrik, R.Y.; Radomskaya, T.A.; Suvorova, L.F. (2020) Fedorite from Murun Alkaline Complex (Russia): Spectroscopy and Crystal Chemical Features. Minerals: 10: 702.
Lacalamita, Maria, Mesto, Ernesto, Kaneva, Ekaterina, Shendrik, Roman, Radomskaya, Tatiana, Schingaro, Emanuela (2023) High-temperature behaviour of fedorite, Na2.5(Ca4.5Na2.5)[Si16O38]F2⋅2.8H2O, from the Murun Alkaline Complex, Russia. Mineralogical Magazine, 87 (4) 542-553 doi:10.1180/mgm.2023.31
(2023) Fedorite. Handbook of Mineralogy. Mineralogical Society of America

Localities for FedoriteHide

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.
Germany
 
  • Rhineland-Palatinate
    • Ahrweiler
      • Brohltal
        • Brenk
Blass, G., Graf, H. W., Kolitsch, U., Sebold, D. (2004) Neue Funde aus der Vulkaneifel. Mineralien Welt, 15 (3) 58-69
Russia
 
  • Aldan Shield
    • Chara and Tokko Rivers Confluence
[Lapis 1993:4 p.13-20]
Kaneva, E.V.
Shendrik, R.Y.
Radomskaya, T.A.
Suvorova, L.F. (2020) Fedorite from Murun Alkaline Complex (Russia): Spectroscopy and Crystal Chemical Features. Minerals 10, 702.
Kaneva, E.V.
Shendrik, R.Y.
Radomskaya, T.A.
Suvorova, L.F. (2020) Fedorite from Murun Alkaline Complex (Russia): Spectroscopy and Crystal Chemical Features. Minerals 10, 702.
Konev, A.A., Vorob'yev, E.I., and Lazebnik, K.A. (1996) The Mineralogy of the Murun Massif. Russian Academy of Science Press, Siberian Branch, Novosbirsk, Russia (in Rus.)
Solyanik, V. A., Pakhomova, V. A., & Ushkova, M. A. (2008). Charoite–a champion among mineralogical discoveries in the second half of the 20th century. The Journal of the Gemmological Association of Hong Kong, 29, 77-80.
Vladykin, N. V., Borovikov, A. A., Dokuchits, E. Y., & Thomas, V. G. (2018). Genesis of charoite rocks in the Murun massif, Aldan shield, Russia. Geochemistry International, 56(12), 1135-1147.
Dokuchits, E. Y., Jiang, S. Y., Stepanov, A. S., Zhukova, I. A., Radomskaya, T. A., Marfin, A. E., & Vishnevskiy, A. V. (2022). Geochemistry of Ca-(K)-(Na) silicates from charoitites in the Sirenevyi Kamen gemstone deposit, Murun Complex, Eastern Siberia. Ore Geology Reviews, 104787.
Konev, A.A., Vorob'yev, E.I., and Lazebnik, K.A. (1996) The Mineralogy of the Murun Massif. Russian Academy of Science Press, Siberian Branch, Novosbirsk, Russia (in Rus.)
Pavel.M. Kartashov (n.d.) analytical data.
Kaneva, E.V.
Shendrik, R.Y.
Radomskaya, T.A.
Suvorova, L.F. (2020) Fedorite from Murun Alkaline Complex (Russia): Spectroscopy and Crystal Chemical Features. Minerals 10, 702.
  • Murmansk Oblast
    • Turii Cape
Pekov, Igor V. (1998) Minerals first discovered on the territory of the former Soviet Union. Ocean Pictures, Moscow. 369pp.
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