Biraite-(Ce)
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About Biraite-(Ce)
Formula:
Ce2Fe2+(Si2O7)(CO3)
Colour:
Brown
Lustre:
Vitreous
Hardness:
5
Specific Gravity:
4.76 (Calculated)
Crystal System:
Monoclinic
Member of:
Name:
After the type locality in the Biraya Fe-REE ore occurrence, Vitim Plateau, Buriatia (Buryatia) Republic, Transbaikalia (Zabaykalye), Eastern-Siberian Region, Russia.
Classification of Biraite-(Ce)
Approved
Approval year:
2003
8/C.0-
9.BE.90
9 : SILICATES (Germanates)
B : Sorosilicates
E : Si2O7 groups, with additional anions; cations in octahedral [6] and greater coordination
9 : SILICATES (Germanates)
B : Sorosilicates
E : Si2O7 groups, with additional anions; cations in octahedral [6] and greater coordination
Physical Properties of Biraite-(Ce)
Optical Data of Biraite-(Ce)
Type:
Biaxial (-)
RI values:
nα = 1.785 nβ = 1.810 nγ = 1.820
2V:
Measured: 66° , Calculated: 64°
Max Birefringence:
δ = 0.035

Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
and does not take into account mineral colouration.
Surface Relief:
Very High
Dispersion:
r < v, weak
Chemical Properties of Biraite-(Ce)
Formula:
Ce2Fe2+(Si2O7)(CO3)
Crystallography of Biraite-(Ce)
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/b
Cell Parameters:
a = 6.512 Å, b = 6.744 Å, c = 18.94 Å
β = 111.9°
β = 111.9°
Ratio:
a:b:c = 0.966 : 1 : 2.808
Unit Cell V:
771.1 ų
Z:
4
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
4.41 Å | (4) |
3.61 Å | (4) |
3.30 Å | (5) |
3.14 Å | (4) |
2.92 Å | (10) |
2.65 Å | (5) |
2.23 Å | (5) |
Type Occurrence of Biraite-(Ce)
General Appearance of Type Material:
irregular to well-shaped grains from 0.1 to 3 mm in length
Geological Setting of Type Material:
carbonatite dyke
Associated Minerals at Type Locality:
Synonyms of Biraite-(Ce)
Other Language Names for Biraite-(Ce)
Relationship of Biraite-(Ce) to other Species
Member of:
Other Members of this group:
Alexkuznetsovite-(Ce) | Ce2Mn(CO3)(Si2O7) | Mon. 2/m : P21/b |
Alexkuznetsovite-(La) | La2Mn(CO3)(Si2O7) | Mon. 2/m : P21/b |
Biraite-(La) | La2Fe2+(CO3)(Si2O7) | Mon. 2/m : P21/b |
Common Associates
Associated Minerals Based on Photo Data:
6 photos of Biraite-(Ce) associated with Ferriallanite-(Ce) | {CaCe}{Fe3+AlFe2+}(Si2O7)(SiO4)O(OH) |
4 photos of Biraite-(Ce) associated with Cordylite-(Ce) | NaBaCe2(CO3)4F |
4 photos of Biraite-(Ce) associated with Unnamed (O- and Fe-analogue of Västmanlandite-(Ce)) | Ca(Ce,La)3Al2Fe2+Fe3+(Si2O7)(SiO4)3O(OH)2 |
4 photos of Biraite-(Ce) associated with Törnebohmite-(Ce) | (Ce,La)2Al(SiO4)2(OH) |
4 photos of Biraite-(Ce) associated with Strontianite | SrCO3 |
4 photos of Biraite-(Ce) associated with Strontium-rich Calcite | (Ca,Sr)CO3 |
2 photos of Biraite-(Ce) associated with Hydroxylbastnäsite-(Ce) | Ce(CO3)(OH) |
Related Minerals - Nickel-Strunz Grouping
9.BE. | Betalomonosovite | Na6◻4Ti4(Si2O7)2[PO3OH][PO2(OH)2]O2(OF) | Tric. 1 : P1 |
9.BE. | Bobshannonite | Na2KBa(Mn,Na)8(Nb,Ti)4(Si2O7)4O4(OH)4(O,F)2 | Tric. |
9.BE. | Calciomurmanite | (Na,◻)2Ca(Ti,Mg,Nb)4[Si2O7]2O2(OH,O)2(H2O)4 | Tric. 1 : P1 |
9.BE. | Batievaite-(Y) | Y2Ca2Ti(Si2O7)2(OH)2(H2O)4 | Tric. 1 : P1 |
9.BE. | Delhuyarite-(Ce) | Ce4Mg(Fe3+,W)3◻(Si2O7)2O6(OH)2 | Mon. 2/m : B2/m |
9.BE.X | Asimowite | Fe2+4O(Si2O7) | Orth. mmm (2/m 2/m 2/m) : Imma |
9.BE.02 | Wadsleyite | Mg4O(Si2O7) | Orth. |
9.BE.05 | Hennomartinite | SrMn3+2(Si2O7)(OH)2 · H2O | Orth. |
9.BE.05 | Lawsonite | CaAl2(Si2O7)(OH)2 · H2O | Orth. mmm (2/m 2/m 2/m) : Cmcm |
9.BE.05 | Noelbensonite | BaMn3+2(Si2O7)(OH)2 · H2O | Orth. mm2 |
9.BE.05 | Itoigawaite | SrAl2(Si2O7)(OH)2 · H2O | Orth. |
9.BE.07 | Ilvaite | CaFe3+Fe2+2(Si2O7)O(OH) | Orth. mmm (2/m 2/m 2/m) |
9.BE.07 | Manganilvaite | CaFe2+Fe3+Mn2+(Si2O7)O(OH) | Mon. 2/m : P21/b |
9.BE.10 | Suolunite | Ca2(H2Si2O7) · H2O | Orth. |
9.BE.12 | Jaffeite | Ca6(Si2O7)(OH)6 | Trig. 3 : P3 |
9.BE.15 | Fresnoite | Ba2Ti(Si2O7)O | Tet. 4mm : P4bm |
9.BE.17 | Baghdadite | Ca6Zr2(Si2O7)2O4 | Mon. 2/m : P21/b |
9.BE.17 | Burpalite | Na2CaZr(Si2O7)F2 | Mon. |
9.BE.17 | Cuspidine | Ca4(Si2O7)(F,OH)2 | Mon. 2/m : P21/b |
9.BE.17 | Hiortdahlite | Na2Ca4(Ca0.5Zr0.5)Zr(Si2O7)2OF3 | Tric. 1 : P1 |
9.BE.17 | Janhaugite | (Na,Ca)3(Mn2+,Fe2+)3(Ti,Zr,Nb)2(Si2O7)2O2(OH,F)2 | Mon. 2/m : P21/m |
9.BE.17 | Låvenite | (Na,Ca)2(Mn2+,Fe2+)(Zr,Ti)(Si2O7)(O,OH,F)2 | Mon. 2/m : P21/b |
9.BE.17 | Niocalite | (Ca,Nb)4(Si2O7)(O,OH,F)2 | Mon. |
9.BE.17 | Normandite | NaCa(Mn,Fe)(Ti,Nb,Zr)(Si2O7)OF | Mon. 2/m : P21/b |
9.BE.17 | Wöhlerite | NaCa2(Zr,Nb)(Si2O7)(O,OH,F)2 | Mon. 2 : P21 |
9.BE.17 | Hiortdahlite I | Na4Ca8Zr2(Nb,Mn,Ti,Fe,Mg,Al)2(Si2O7)4O3F5 | Tric. 1 : P1 |
9.BE.20 | Mosandrite-(Ce) | (Ca3REE)[(H2O)2Ca0.5◻0.5]Ti(Si2O7)2(OH)2(H2O)2 | Mon. 2/m : P21/b |
9.BE.20 | Nacareniobsite-(Ce) | NbNa3Ca3(Ce,REE )(Si2O7)2OF3 | Mon. |
9.BE.22 | Götzenite | NaCa6Ti(Si2O7)2OF3 | Tric. 1 : P1 |
9.BE.22 | Hainite-(Y) | Na2Ca4(Y,REE)Ti(Si2O7)2OF3 | Tric. 1 : P1 |
9.BE.22 | Rosenbuschite | Na6Ca6Zr3Ti(Si2O7)4O2F6 | Tric. 1 : P1 |
9.BE.22 | Kochite | Na3Ca2MnZrTi(Si2O7)2OF3 | Tric. 1 : P1 |
9.BE.23 | Dovyrenite | Ca6Zr(Si2O7)2(OH)4 | Orth. mmm (2/m 2/m 2/m) : Pnnm |
9.BE.25 | Barytolamprophyllite | (Ba,Na)2(Na,Ti,Fe3+)4Ti2(Si2O7)2O(OH,F) | Mon. |
9.BE.25 | Ericssonite | BaMn2+2Fe3+(Si2O7)O(OH) | Mon. 2/m : B2/m |
9.BE.25 | Lamprophyllite | (Na,Mn2+)3(Sr,Na)2(Ti,Fe3+)3(Si2O7)2O2(OH,O,F)2 | Mon. |
9.BE.25 | Ericssonite-2O | BaMn2+2Fe3+(Si2O7)O(OH) | Orth. |
9.BE.25 | Seidozerite | Na4MnZr2Ti(Si2O7)2O2F2 | Mon. |
9.BE.25 | Nabalamprophyllite | Na3(Ba,Na)2Ti3(Si2O7)2O2(OH,F)2 | Mon. 2/m |
9.BE.25 | Grenmarite | Na4MnZr3(Si2O7)2O2F2 | Mon. 2/m : P2/b |
9.BE.25 | Schüllerite | Ba2Na(Mn,Ca)(Fe3+,Mg,Fe2+)2Ti2(Si2O7)2(O,F)4 | Tric. 1 : P1 |
9.BE.25 | Lileyite | Ba2(Na,Fe,Ca)3MgTi2(Si2O7)2O2F2 | Mon. 2/m : B2/m |
9.BE.25 | Emmerichite | Ba2Na(Na,Fe2+)2(Fe3+,Mg)Ti2(Si2O7)2O2F2 | Mon. 2/m : B2/m |
9.BE.25 | Fluorbarytolamprophyllite | (Ba,Sr)2[(Na,Fe2+)3(Ti,Mg)F2][Ti2(Si2O7)2O2] | Mon. 2/m : B2/m |
9.BE.27 | Murmanite | Na2Ti2(Si2O7)O2 · 2H2O | Tric. |
9.BE.30 | Epistolite | Na2(Nb,Ti)2(Si2O7)O2 · nH2O | Tric. |
9.BE.32 | Lomonosovite | Na5Ti2(Si2O7)(PO4)O2 | Tric. 1 : P1 |
9.BE.35 | Vuonnemite | Na11Ti4+Nb2(Si2O7)2(PO4)2O3(F,OH) | Tric. |
9.BE.37 | Sobolevite | Na13Ca2Mn2Ti3(Si2O7)2(PO4)4O3F3 | Mon. m : Pb |
9.BE.40 | Innelite | Na2CaBa4Ti3(Si2O7)2(SO4)2O4 | Tric. 1 : P1 |
9.BE.40 | Phosphoinnelite | Na3Ba4Ti3(Si2O7)2(PO4,SO4)2O2F | Tric. |
9.BE.42 | Yoshimuraite | Ba2Mn2Ti(Si2O7)(PO4)O(OH) | Tric. 1 : P1 |
9.BE.45 | Quadruphite | Na14Ca2Ti4(Si2O7)2(PO4)2O2F | Tric. |
9.BE.47 | Polyphite | Na5(Na4Ca2)Ti2(Si2O7)(PO4)3O2F2 | Tric. 1 : P1 |
9.BE.50 | Bornemanite | Na6BaTi2Nb(Si2O7)2(PO4)O2(OH)F | Tric. 1 : P1 |
9.BE.50 | Shkatulkalite | Na5(Nb1-xTix)2(Ti1-yMn2+y)[Si2O7]2O2(OH)2 · nH2O | Mon. 2/m : P2/m |
9.BE.55 | Bafertisite | Ba2Fe2+4Ti2(Si2O7)2O2(OH)2F2 | Tric. |
9.BE.55 | Hejtmanite | Ba2Mn2+4Ti2(Si2O7)2O2(OH)2F2 | Tric. 1 |
9.BE.55 | Bykovaite | (Ba,Na,K)2(Na,Ti,Mn)4(Ti,Nb)2(Si2O7)2O2(H2O,F,OH)2 · 3.5H2O | Mon. 2/m |
9.BE.55 | Nechelyustovite | (Ba,Sr,K)2(Na,Ti,Mn)4(Ti,Nb)2(Si2O7)2O2(O,H2O,F)2 · 4.5H2O | Mon. 2/m : B2/m |
9.BE.60 | Delindeite | (Na,K)2(Ba,Ca)2(Ti,Fe,Al)3(Si2O7)2O2(OH)2 · 2H2O | Mon. |
9.BE.65 | Bussenite | Na2Ba2Fe2+Ti(Si2O7)(CO3)(OH)3F | Tric. 1 : P1 |
9.BE.67 | Jinshajiangite | BaNaFe2+4Ti2(Si2O7)2O2(OH)2F | Tric. 1 : P1 |
9.BE.67 | Perraultite | BaNaMn2+4Ti2(Si2O7)2O2(OH)2F | Mon. 2/m : B2/m |
9.BE.70 | Karnasurtite-(Ce) | (Ce,La,Th)(Ti,Nb)(Al,Fe)(Si2O7)(OH)4 · 3H2O | Amor. |
9.BE.70 | Perrierite-(Ce) | Ce4MgFe3+2Ti2(Si2O7)2O8 | Mon. 2/m : P21/b |
9.BE.70 | Strontiochevkinite | (Sr,La,Ce,Ca)4Fe2+(Ti,Zr)2Ti2(Si2O7)2O8 | Mon. |
9.BE.70 | Chevkinite-(Ce) | (Ce,La,Ca,Th)4(Fe2+,Mg)(Fe2+,Ti,Fe3+)2(Ti,Fe3+)2(Si2O7)2O8 | Mon. 2/m : P21/b |
9.BE.70 | Polyakovite-(Ce) | (Ce,Ca)4(Mg,Fe2+)(Cr3+,Fe3+)2(Ti,Nb)2(Si2O7)2O8 | Mon. 2/m : B2/m |
9.BE.70 | Rengeite | Sr4ZrTi4(Si2O7)2O8 | Mon. 2/m : P21/b |
9.BE.70 | Matsubaraite | Sr4Ti5(Si2O7)2O8 | Mon. 2/m : P21/b |
9.BE.70 | Dingdaohengite-(Ce) | (Ce,La)4Fe2+(Ti,Fe2+,Mg,Fe2+)2Ti2(Si2O7)2O8 | Mon. 2/m : P21/b |
9.BE.70 | Maoniupingite-(Ce) | (Ce,Ca)4(Fe3+,Ti,Fe2+,◻)(Ti,Fe3+,Fe2+,Nb)4(Si2O7)2O8 | Mon. 2/m : B2/m |
9.BE.70 | Perrierite-(La) | (La,Ce,Ca)4(Fe,Mn2+,Mg)Fe3+2(Ti,Fe3+)2(Si2O7)2O8 | Mon. 2/m : P21/b |
9.BE.70 | UM2008-53-SiO:SrTiZr | Sr4ZrTi4(Si2O7)2O8 | Orth. mmm (2/m 2/m 2/m) : Pbca |
9.BE.70 | Hezuolinite | (Sr,REE)4Zr(Ti,Fe3+)4(Si2O7)2O8 | Mon. 2/m : B2/m |
9.BE.72 | Fersmanite | Ca4(Na,Ca)4(Ti,Nb)4(Si2O7)2O8F3 | Tric. |
9.BE.75 | Belkovite | Ba3(Nb,Ti)6(Si2O7)2O12 | Hex. |
9.BE.77 | Nasonite | Pb6Ca4(Si2O7)3Cl2 | Hex. |
9.BE.80 | Kentrolite | Pb2Mn3+2(Si2O7)O2 | Orth. mmm (2/m 2/m 2/m) : Pbcm |
9.BE.80 | Melanotekite | Pb2Fe3+2(Si2O7)O2 | Orth. 2 2 2 : C2 2 21 |
9.BE.82 | Tilleyite | Ca5(Si2O7)(CO3)2 | Mon. |
9.BE.85 | Killalaite | Ca6.4(H0.6Si2O7)2(OH)2 | Mon. |
9.BE.87 | Stavelotite-(La) | (La,Nd,Ca)3Mn2+3Cu(Mn3+,Fe3+,Mn4+)26(Si2O7)6O30 | Trig. 3 : P31 |
9.BE.92 | Cervandonite-(Ce) | (Ce,Nd,La)(Fe3+,Fe2+,Ti,Al)3O2(Si2O7)(As3+O3)(OH) | Trig. 3m : R3m |
9.BE.95 | Batisivite | BaV3+8Ti6(Si2O7)O22 | Tric. 1 : P1 |
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 Biraite-(Ce)
Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
A. Konev, M. Pasero, D. Puscharovsky, S., Merlino, A. Kashaev, L. Suvorova, Z. Ushchapovskaya, N. Nartova, Y. Lebedeva & N. Chukanov: "Biraite-(Ce), Ce2Fe2+(CO3)(Si2O7), a new mineral from Siberia with a novel structure type", European Journal of Mineralogy 17(5):715–721 (2005)
Internet Links for Biraite-(Ce)
mindat.org URL:
https://www.mindat.org/min-27384.html
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External Links:
Mineral Dealers:
Localities for Biraite-(Ce)
Locality List




All localities listed without proper references should be considered as questionable.
Russia | |
| http://webmineral.ru/deposits/item.php?id=1227; Kasatkin, A. V., Zubkova, N. V., Pekov, I. V., Chukanov, N. V., Škoda, R., Polekhovsky, Y. S., ... & Pushcharovsky, D. Y. The mineralogy of the historical Mochalin Log REE deposit, South Urals, Russia. Part I. New gatelite-group minerals ferriperbøeite-(La),(CaLa 3)(Fe 3+ Al 2 Fe 2+)[Si 2 O 7][SiO 4] 3 O (OH) 2, and perbøeite-(La),(CaLa 3)(Al 3 Fe 2+)[Si 2 O 7][SiO 4] 3 O (OH) 2. Mineralogical Magazine, 1-35. |
| Koneva A.A., Konev A.A., Vladykin N.V. (2010) Vein complex of the Biraya carbonatite deposit. in Abstracts of XXVII International conference School «Geochemistry of Alkaline rocks». – Moscow-Koktebel’. pp. 240 pp. |
| A. Konev et al.: European Journal of Mineralogy 17(5):715–721 (2005) |
Ust'-Biraya, Biraya Fe-REE ore occurrence, Biraya and Bya Rivers confluence area, Vitim Plateau, Irkutsk Oblast, Russia