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Radekškodaite-(Ce)

A valid IMA mineral species
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Formula:
(CaCe5)(Al4Fe2+)[Si2O7][SiO4]5O(OH)3
Colour:
Greenish-brown
Lustre:
Vitreous
Hardness:
6½
Specific Gravity:
4.651 (Calculated)
Crystal System:
Monoclinic
Name:
Named in honor of Radek Škoda (b. 1979), mineralogist and Associate Professor at Masaryk University, Brno, Czech Republic. He is known for his contribution to the mineralogy and geochemistry of REE. The mineral name is pronounced: ra dek shko da ait.
The Ce analogue ofradekškodaite-(La).


Approval year:
2019
First published:
Type description reference:

Classification of Radekškodaite-(Ce)

Mineral Symbols
Transparency:
Translucent

Colour:
Greenish-brown
Streak:
Brown
Hardness:
6½ onMohs scale
Hardness:
VHN150=800 - 922 kg/mm2 - Vickers
Hardness Data:
Measured
Tenacity:
Brittle
Cleavage:
Distinct/Good
Good in one direction (possibly {100}), imperfect in another.
Fracture:
Irregular/Uneven
Density:
4.651 g/cm3 (Calculated)

Optical Data of Radekškodaite-(Ce)
Surface Relief:
Very High

Dispersion:
weak, r < v
Pleochroism:
Weak
Comments:
Marsh green hues with the absorption scheme Z > Y > X.

Chemistry of Radekškodaite-(Ce)

Crystallography of Radekškodaite-(Ce)
General Appearance of Type Material:
Isolated anhedral grains up to 1 mm × 2 mm.
Place of Conservation of Type Material:
In the collections of the Fersman Mineralogical Museum, Russian Academy of Sciences, Leninskiy Prospekt 18-2, Moscow 119071, Russia, registration number 5363/1
Geological Setting of Type Material:
Polymineralic nodules
Associated Minerals at Type Locality:
Allanite-(Ce)Ancylite-(Ce)Cerianite-(Ce)Ferriallanite-(Ce)Heulandite-Ca
Lanthanite-(La)MagnetitePerrierite-(Ce)QuartzThorianite
Thorite
Reference:
Kasatkin, A.V., Zubkova, N.V., Pekov, I.V., Chukanov, N.V., Ksenofontov, D.A., Agakhanov, A.A., Belakovskiy, D.I., Polekhovsky, Y.S., Kuznetsov, A.M., Britvin, S.N., Pushcharovsky, D.Yu., Nestola, F. (2020) The mineralogy of the historical Mochalin Log REE deposit, South Urals, Russia. Part II. Radekškodaite-(La), (CaLa5)(Al4Fe2+)[Si2O7][SiO4]5O(OH)3 and radekškodaite-(Ce), (CaCe5)(Al4Fe2+)[Si2O7][SiO4]5O(OH)3, two new minerals with a novel structure-type belonging to the epidote–törnebohmite polysomatic series. Mineralogical Magazine: 84(6): 839-853.

Synonyms of Radekškodaite-(Ce)

Other Language Names for Radekškodaite-(Ce)

Relationship of Radekškodaite-(Ce) to other Species
Other Members of this group:
Radekškodaite-(La) (CaLa5)(Al4Fe2+)[Si2O7][SiO4]5O(OH)3Mon. 2/m :P21/m
Zilbermintsite-(La)(CaLa5)(Fe3+Al3Fe2+)[Si2O7][SiO4]5O(OH)3Mon. 2/m :P21/m

Related Minerals -Strunz-mindat GroupingTet. 4/m :P4/n9.BG.Alnaperbøeite-(Ce)Ca(Ce2.5Na0.5)(AlAl2Al)[Si2O7][SiO4]3O(OH)2Mon. 2/m :P21/m9.BG.Zilbermintsite-(La)(CaLa5)(Fe3+Al3Fe2+)[Si2O7][SiO4]5O(OH)3Mon. 2/m :P21/m9.BG.Vielleaureite-(Ce)(Mn2+Ce)(MgAlMn2+)F[Si2O7][SiO4](OH)Mon. 2/m :P21/m9.BG.Heflikite(CaCa)(AlAlSc)O[Si2O7][SiO4](OH)Mon. 2/m :P21/m9.BG.MagnesiovesuvianiteCa19MgAl4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10](OH)(OH)9Tet. 4/m :P4/n9.BG.Zoisite-(Pb)(CaPb)(AlAlAl)O[Si2O7][SiO4](OH)Orth.mmm(2/m2/m2/m) :Pnma9.BG.Shuiskite-(Cr)Ca2Cr3+Cr3+2[Si2O6OH][SiO4](OH)2OMon. 2/m :B2/m9.BG.05Dissakisite-(La)(CaLa)(AlAlMg)O[Si2O7][SiO4](OH)Mon. 2/m :P21/m9.BG.05Manganiandrosite-(Ce)(Mn2+Ce)(Mn3+AlMn2+)O[Si2O7][SiO4](OH)Mon. 2/m :P21/m9.BG.05bDissakisite-(Ce)(CaCe)(AlAlMg)O[Si2O7][SiO4](OH)Mon. 2/m :P21/m9.BG.05bAllanite-(Sm)(CaSm)(AlAlFe2+)O[Si2O7][SiO4](OH)Mon. 2/m :P21/m9.BG.05aHancockite(CaPb)(AlAlFe3+)O[Si2O7][SiO4](OH)Mon. 2/m :P21/m9.BG.05Dollaseite-(Ce)(CaCe)(MgAlMg)F[Si2O7][SiO4](OH)Mon. 2/m :P21/m9.BG.05a vUnnamed (Ga-analogue of Epidote)(CaCa)(AlAlGa3+)O[Si2O7][SiO4](OH)9.BG.05aClinozoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)Mon. 2/m :P21/m9.BG.05aEpidote-(Sr)(CaSr)(AlAlFe3+)O[Si2O7][SiO4](OH)Mon. 2/m :P21/m9.BG.05Vanadoandrosite-(Ce)(Mn2+Ce)(V3+AlMn2+)O[Si2O7][SiO4](OH)Mon. 2/m :P21/m9.BG.05bVanadoallanite-(La)(CaLa)(V3+AlFe2+)O[Si2O7][SiO4](OH)Mon. 2/m :P21/m9.BG.05bUnnamed (Mg-analogue of Ferriallanite-(Ce))(CaCe)(Fe3+AlMg)O[Si2O7][SiO4](OH)9.BG.05bFerriallanite-(La)(CaLa)(Fe3+AlFe2+)O[Si2O7][SiO4](OH)Mon. 2/m :P21/m9.BG.05Uedaite-(Ce)(Mn2+Ce)(AlAlFe2+)O[Si2O7][SiO4](OH)Mon. 2/m :P21/m9.BG.05aEpidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)Mon. 2/m :P21/m9.BG.05Tweddillite(CaSr)(Mn3+AlMn3+)O[Si2O7][SiO4](OH)Mon. 2/m :P21/m9.BG.05bÅskagenite-(Nd)(Mn2+Nd)(AlAlFe3+)O[Si2O7][SiO4]OMon. 2/m :P21/m9.BG.05Piemontite-(Pb)(CaPb)(AlAlMn3+)O[Si2O7][SiO4](OH)Mon. 2/m :P21/m9.BG.05bAllanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)Mon. 2/m :P21/m9.BG.05bAllanite-(La)(CaLa)(AlAlFe2+)O[Si2O7][SiO4](OH)Mon. 2/m :P21/m9.BG.05bAllanite-(Y)(CaY)(AlAlFe2+)O[Si2O7][SiO4](OH)Mon.9.BG.05aPiemontite(CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH)Mon. 2/m :P21/m9.BG.05bManganiandrosite-(La)(Mn2+La)(Mn3+AlMn2+)O[Si2O7][SiO4](OH)Mon. 2/m :P21/m9.BG.05Khristovite-(Ce)(CaCe)(MgAlMn2+)F[Si2O7][SiO4](OH)Mon. 2/m :P21/m9.BG.05bFerriakasakaite-(La)(CaLa)(Fe3+AlMn2+)O[Si2O7][SiO4](OH)Mon. 2/m :P21/m9.BG.05Ferriandrosite-(La)(Mn2+La)(Fe3+AlMn2+)O[Si2O7][SiO4](OH)Mon. 2/m :P21/m9.BG.05Androsite-(Ce)(Mn2+Ce)(AlAlMn2+)O[Si2O7][SiO4](OH)9.BG.05Ferriandrosite-(Ce)(Mn2+Ce)(Fe3+AlMn2+)O[Si2O7][SiO4](OH)Mon. 2/m :P21/m9.BG.05bFerriallanite-(Ce)(CaCe)(Fe3+AlFe2+)O[Si2O7][SiO4](OH)Mon. 2/m :P21/m9.BG.05bUnnamed (Mn3+-analogue of Ferriakasakaite-(Ce))(CaCe)(Mn3+AlMn2+)O[Si2O7][SiO4](OH)9.BG.5bVanadoakasakaite-(Ce)CaCe(V3+AlMn2+)O[Si2O7][SiO4](OH)Mon. 2/m :P21/m9.BG.05Piemontite-(Sr)(CaSr)(AlAlMn3+)O[Si2O7][SiO4](OH)Mon. 2/m :P21/m9.BG.05Niigataite(CaSr)(AlAlAl)O[Si2O7][SiO4](OH)Mon. 2/m :P21/m9.BG.05bFerriakasakaite-(Ce)(CaCe)(Fe3+AlMn2+)O[Si2O7][SiO4](OH)Mon. 2/m :P21/m9.BG.05bAllanite-(Nd)(CaNd)(AlAlFe2+)O[Si2O7][SiO4](OH)Mon. 2/m :P21/m9.BG.05bUM1989-32-SiO:AlCaFeHREE(Ca0.5◻0.5REE)(AlAlFe3+)O[Si2O7][SiO4](OH)9.BG.05aMukhinite(CaCa)(AlAlV3+)O[Si2O7][SiO4](OH)Mon.9.BG.05bManganiakasakaite-(La)(CaLa)(Mn3+AlMn2+)O[Si2O7][SiO4](OH)Mon. 2/m :P21/m9.BG.10Zoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)Orth.mmm(2/m2/m2/m) :Pnma9.BG.15MacfalliteCa2Mn3+3(SiO4)(Si2O7)(OH)3Mon. 2/m :P21/m9.BG.15SursassiteMn2+2Al3(SiO4)(Si2O7)(OH)3Mon. 2/m :P21/m9.BG.20Pumpellyite-(Al)Ca2AlAl2[Si2O6OH][SiO4](OH)2OMon. 2/m9.BG.20Shuiskite-(Mg)Ca2MgCr3+2[Si2O6OH][SiO4](OH)2(OH)Mon. 2/m9.BG.20Julgoldite-(Fe2+)Ca2Fe2+Fe3+2[Si2O6OH][SiO4](OH)2(OH)Mon. 2/m9.BG.20OkhotskiteCa2Mn2+Mn3+2[Si2O6OH][SiO4](OH)2(OH)Mon. 2/m9.BG.20Julgoldite-(Mg)Ca2MgFe3+2[Si2O6OH][SiO4](OH)2(OH)Mon.9.BG.20PoppiiteCa2V3+V3+2[Si2O6OH][SiO4](OH)2OMon. 2/m :B2/m9.BG.20Julgoldite-(Fe3+)Ca2Fe3+Fe3+2[Si2O6OH][SiO4](OH)2OMon.9.BG.20Pumpellyite-(Fe2+)Ca2Fe2+Al2[Si2O6OH][SiO4](OH)2(OH)Mon. 2/m9.BG.20Pumpellyite-(Fe3+)Ca2Fe3+Al2[Si2O6OH][SiO4](OH)2OMon. 2/m9.BG.20Pumpellyite-(Mg)Ca2MgAl2[Si2O6OH][SiO4](OH)2(OH)Mon. 2/m9.BG.20Pumpellyite-(Mn2+)Ca2Mn2+Al2[Si2O6OH][SiO4](OH)2(OH)Mon. 2/m9.BG.25GanomalitePb9Ca5Mn(Si2O7)4(SiO4)OHex.6 :P69.BG.25WayneburnhamitePb9Ca6(Si2O7)3(SiO4)3Hex.6 :P69.BG.30RustumiteCa10(Si2O7)2(SiO4)(OH)2Cl2Mon. 2/m :B2/b9.BG.35ModraiteCa19Fe2+Al4(Al6Fe2+2)(◻4)◻[Si2O7]4[(SiO4)10](OH)(OH)9Tet. 4/mmm(4/m2/m2/m) :P4/nnc9.BG.35FluorvesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(F,OH)9Tet. 4/mmm(4/m2/m2/m) :P4/nnc9.BG.35VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9Tet. 4/mmm(4/m2/m2/m) :P4/nnc9.BG.35Milanriederite(Ca18[REE])Fe3+Al4(Mg4Al4)(◻4)◻[Si2O7]4[(SiO4)10](OH)(OH)9Tet. 4/mmm(4/m2/m2/m) :P4/nnc9.BG.35Manaevite-(Ce)(Ca13Ce4[H2O]2)Mg(Al3Mg)(Mg3Ti3Fe3+2)(◻4)◻[Si2O7]4[(SiO4)8(H4O4)2]O(OH)9Tet. 4/mmm(4/m2/m2/m) :P4/nnc9.BG.35HongheiteCa19Fe2+Al4(Fe3+,Mg)8(◻4)B[Si2O7]4[(SiO4)10]O(OH,O)9Tet. 4/mmm(4/m2/m2/m) :P4/nnc9.BG.35WiluiteCa19MgAl4(Al,Mg)8(B,◻)4◻[Si2O7]4[(SiO4)10]O(O,OH)9Tet. 4/mmm(4/m2/m2/m) :P4/nnc9.BG.35CyprineCa19Cu2+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10](OH)(OH)9Tet. 4/m :P4/n9.BG.35ManganvesuvianiteCa19Mn3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9Tet. 4/m :P4/n9.BG.40Vyuntspakhkite-(Y)(Y,Yb)4Al2.5-1.5(Si,Al)1.5-2.5(SiO4)4O(OH)7Mon.9.BG.45DellaiteCa6Si3O11(OH)2Tric.9.BG.50Ferriperbøeite-(Ce)CaCe3(Fe3+Al2Fe2+)[Si2O7][SiO4]3O(OH)2Mon. 2/m :P21/m9.BG.50Perbøeite-(La)CaLa3(AlAl2Fe2+)[Si2O7][SiO4]3O(OH)2Mon. 2/m :P21/m9.BG.50Perbøeite-(Ce)CaCe3(AlAl2Fe2+)[Si2O7][SiO4]3O(OH)2Mon. 2/m :P21/m9.BG.50Gatelite-(Ce)CaCe3(AlAl2Mg)[Si2O7][SiO4]3O(OH)2Mon. 2/m :P21/b9.BG.50Ferriperbøeite-(La) CaLa3(Fe3+Al2Fe2+)[Si2O7][SiO4]3O(OH)2Mon. 2/m :P21/m9.BG.55Västmanlandite-(Ce)CaCe3(MgAl2Mg)[Si2O7][SiO4]3F(OH)2Mon. 2/m :P21/m9.BG.60Radekškodaite-(La) (CaLa5)(Al4Fe2+)[Si2O7][SiO4]5O(OH)3Mon. 2/m :P21/m9.BG.60Radekškodaite Group(CaM5)([Fe3+Al3]Fe2+)[Si2O7][SiO4]5O(OH)3

Fluorescence of Radekškodaite-(Ce)

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    • References for Radekškodaite-(Ce)ⓘMochalin Log (TL)Miyawaki et al. (2019)+1 other reference
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