Vote for your favorite mineral in #MinCup26! - Azurite vs. Smithsonite
It's carbonate-vs-carbonate to kick off Mineral Cup 2026 with copper-rich Azurite against zinc-rich Smithsonite.
Log InRegister
Quick Links : The Mindat ManualThe Rock H. Currier Digital LibraryMindat Newsletter [Free Download]
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsThe Rock H. Currier Digital LibraryGeologic TimeExplore Fossils
Minerals by PropertiesMinerals by ChemistryMineral Visual ExplorerAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsClubs & OrganizationsMineral Shows & EventsThe Mindat DirectoryDevice SettingsThe Mineral QuizTime Machine
Photo SearchPhoto GalleriesSearch by ColorPhoto Colour ExplorerNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Feklichevite

A valid IMA mineral species
This page is currently not sponsored. Click here to sponsor this page.
08415090017445777268534.jpg
Feklichevite

Kovdor Phlogopite mine, Kovdor Massif, Kovdorsky District, Murmansk Oblast, Russia
06729860017445777272714.jpg
Feklichevite

Kovdor Phlogopite mine, Kovdor Massif, Kovdorsky District, Murmansk Oblast, Russia
07506460017445777289793.jpg
Feklichevite

Kovdor Phlogopite mine, Kovdor Massif, Kovdorsky District, Murmansk Oblast, Russia
06078880017866427879351.jpg
Feklichevite

Kovdor Phlogopite mine, Kovdor Massif, Kovdorsky District, Murmansk Oblast, Russia
03254270017271929643650.jpg
Feklichevite

Kovdor Phlogopite mine, Kovdor Massif, Kovdorsky District, Murmansk Oblast, Russia
00791940017431607006495.jpg
Feklichevite

Kovdor Phlogopite mine, Kovdor Massif, Kovdorsky District, Murmansk Oblast, Russia
06557100017271929613028.jpg
Feklichevite

Kovdor Phlogopite mine, Kovdor Massif, Kovdorsky District, Murmansk Oblast, Russia
03254270017271929643650.jpg
Feklichevite

Kovdor Phlogopite mine, Kovdor Massif, Kovdorsky District, Murmansk Oblast, Russia
Hide all sections | Show all sections

About FeklicheviteHide

05547770017271929808750.jpg
Vladimir G. Feklichev
Formula:
Na11Ca9(Fe3+,Fe2+)2Zr3Nb[Si25O73](OH,H2O,Cl,O)5
Colour:
Dark brown
Lustre:
Vitreous
Hardness:
5½
Specific Gravity:
2.87
Crystal System:
Trigonal
Member of:
Eudialyte Group
Name:
Named in honor of Vladimir Georgievich Feklichev (Владимир Георгиевич Фекличев) (30 June 1933 - 1999), Russian petrologist, mineralogist and crystallographer.
Eudialyte Group.

Distinguished from eudialyte sensu stricto by ordering of Ca (at M1 and Na4 sites), dominance of ferric iron and niobium (at M3 site, located in the centre of ninefold ring). Other group members with essential Fe3+ are fengchengite, ikranite, and mogovidite. Chemically similar minerals are ferrokentbrooksite, golyshevite, and raslakite (the last Cl-rich).

An interesting feature is presence of some Mn at Si sites.


Unique IdentifiersHide

Mindat ID:
11029
Long-form identifier:
mindat:1:1:11029:7

IMA Classification of FeklicheviteHide

IMA status:
Approved
IMA Formula:
Na11Ca9(Fe3+,Fe2+)2Zr4+3Nb5+(Si25O73)(OH,H2O,Cl,O)5
Approval year:
2000
First published:
2001

Classification of FeklicheviteHide

Strunz-mindat (2026):
9.CO.10

9 : SILICATES (Germanates)
C : Cyclosilicates
O : [Si9O27]18- 9-membered rings
Dana 7th ed.:
64.1.1.2
Dana 8th ed.:
64.1.7.

64 : CYCLOSILICATES Rings with Other Anions and Insular Silicate Groups
1 : Rings with Other Anions and Insular Silicate Groups with mixed ring types

Mineral SymbolsHide

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

SymbolSourceReference for Standard
FekIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of FeklicheviteHide

Lustre:
Vitreous
Transparency:
Translucent
Colour:
Dark brown
Streak:
Brownish
Hardness:
5½ on Mohs scale
Tenacity:
Brittle
Cleavage:
Perfect
Perfect on {0001}.
Fracture:
Irregular/Uneven, Step-Like
Density:
2.87 g/cm3 (Measured)    2.869 g/cm3 (Calculated)

Optical Data of FeklicheviteHide

Type:
Uniaxial (-)
RI values:
nω = 1.620 nε = 1.616
Max. Birefringence:
δ = 0.004
Based on recorded range of RI values above.

Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.

Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.

Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.

Surface Relief:
Moderate
Pleochroism:
Non-pleochroic

Chemistry of FeklicheviteHide

Mindat Formula:
Na11Ca9(Fe3+,Fe2+)2Zr3Nb[Si25O73](OH,H2O,Cl,O)5
Element Weights:
Element% weight
O40.957 %
Si23.044 %
Ca11.838 %
Zr8.982 %
Na8.300 %
Fe3.666 %
Nb3.049 %
H0.165 %

Calculated from ideal end-member formula.
Elements listed:
Ca, Cl, Fe, H, Na, Nb, O, Si, Zr - search for minerals with similar chemistry
Common Impurities:
Fe2+,F,Mn,(Hf,Ti,REE)

Crystallography of FeklicheviteHide

Crystal System:
Trigonal
Class (H-M):
3m - Ditrigonal Pyramidal
Space Group:
R3m
Setting:
R3m
Cell Parameters:
a = 14.255(1) Å, c = 30.170(2) Å
Ratio:
a:c = 1 : 2.116
Unit Cell V:
5309.3 ų
Morphology:
Equant to thick-tabular crystals. Forms include {001}, {110}, {100}, {101}, {104}, {012}, {021}, {267}.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
4.31 Å(55)
3.218 Å(56)
3.036 Å(43)
2.977 Å(81)
2.854 Å(100)
2.602 Å(44)
Locality:
Kovdor Phlogopite mine, Kovdor Massif, Kovdorsky District, Murmansk Oblast, Russia
Comments:
Kovdor Phlogopite mine, Murmansk Oblast, Russia. Data are from the type description.

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 FeklicheviteHide

Type Locality:
ⓘ Kovdor Phlogopite mine, Kovdor Massif, Kovdorsky District, Murmansk Oblast, Russia
General Appearance of Type Material:
Crystals (isometric to thick-tabular) and grains to 2-2.5 cm.
Place of Conservation of Type Material:
A. E. Fersman Mineralogical Museum, Moscow, Russia.
Geological Setting of Type Material:
In a pegmatoid cancrinite syenite vein.
Associated Minerals at Type Locality:
Aegirine-augiteCancriniteHematiteK FeldsparPectolite
Titanite

Synonyms of FeklicheviteHide

Other Language Names for FeklicheviteHide

Relationship of Feklichevite to other SpeciesHide

Member of:
Eudialyte Group
Other Members of Eudialyte Group:
AlluaiviteNa19(Ca,Mn)6(Ti,Nb)3Si26O74Cl · 2H2OTrig. 3m(32/m) : R3m
Amableite-(Ce)Na15[(Ce1.5Na1.5)Mn3]Mn2Zr3◻Si[Si24O69(OH)3](OH)2 · H2OTrig. 3 : R3
AndrianoviteNa12(K,Sr,Ce)3Ca6Mn3Zr3Nb(Si25O73)(O,H2O,OH)5Trig. 3m : R3m
Aqualite(H3O)8(Na,K,Sr)5Ca6Zr3Si26O66(OH)9ClTrig. 3 : R3
Carbokentbrooksite(Na3Na3Na3Na3Na3)Ca6(VMn2+3)Zr3[Si3O9]2[Si9O27SiO][Si9O27Nb(OH)3](CO3)(H2O)Trig. 3m : R3m
DavinciiteNa12K3Ca6Fe2+3Zr3(Si26O73OH)Cl2Trig. 3m : R3m
DualiteNa30(Ca,Na,Ce,Sr)12(Na,Mn,Fe,Ti)6Zr3Ti3Mn[Si51O144](OH,H2O,Cl)9Trig. 3m : R3m
EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2Trig. 3m(32/m) : R3m
FengchengiteNa12◻3(Ca,Sr)6Fe3+3 Zr3Si(Si25O73)(H2O,OH)3(OH,Cl)2Trig. 3m(32/m) : R3m
FerrokentbrooksiteNa15Ca6(Fe,Mn)3Zr3NbSi25O73(O,OH,H2O)3Cl2Trig. 3m : R3m
GeorgbarsanoviteNa12(Mn,Sr,REE)3Ca6Fe2+3Zr3NbSi25O76Cl2 · H2OTrig. 3m : R3m
GolysheviteNa10Ca3Ca6Zr3Fe2SiNb(Si3O9)2(Si9O27)2CO3(OH)3 · H2OTrig. 3m : R3m
'Hydrorastsvetaevite'(Na11(H3O)11K6(H2O)1.5Sr)Ca12Fe3Na2MnZr6Si52O144(OH)4.5Cl3.5Trig. 3m : R3m
Ikranite(Na,H3O)15(Ca,Mn2+)6Fe3+2Zr3[H0-3Si3O9)2(Si9O27)2SiO]Cl · 2-3H2OTrig. 3m : R3m
Ilyukhinite(H3O,Na)14Ca6Mn2Zr3Si26O72(OH)2 · 3H2OTrig. 3m : R3m
Johnsenite-(Ce)Na12(Ce2Ca)Ca6Mn3Zr3[Si3O9]2[Si9O27SiO][Si9O27W(O)3](CO3)(OH,Cl)2Trig. 3m : R3m
Kentbrooksite(Na,REE)15(Ca,REE)6(Mn2+,Fe2+)3Zr3Nb[Si25O74]F2 · 2H2OTrig. 3m : R3m
KhomyakoviteNa12Sr3Ca6Fe3Zr3W[Si25O73](O,OH,H2O)3(OH,Cl)2Trig. 3m : R3m
Labyrinthite(Na,K,Sr)35Ca12Fe3Zr6TiSi51O144(O,OH,H2O)9Cl3Trig. 3 : R3
ManganoeudialyteNa14Ca6Mn3Zr3[Si26O72(OH)2](H2O,Cl,O,OH)6Trig. 3m : R3m
ManganokhomyakoviteNa12Sr3Ca6Mn3Zr3W[Si25O73](O,OH,H2O)3(OH,Cl)2Trig. 3m : R3m
MogoviditeNa9(Ca,Na)12Fe2Zr3Si25O72(CO3) (OH)4Trig. 3m : R3m
OdikhinchaiteNa9Sr3[(H2O)2Na]Ca6Mn3Zr3NbSi (Si24O72)O(OH)3(CO3) · H2OTrig. 3m : R3m
OneilliteNa15Ca3Mn3Fe2+3Zr3Nb(Si25O73)(O,OH,H2O)3(OH,Cl)2Trig. 3 : R3
RaslakiteNa15Ca3Fe2+3(Na,Zr)3Zr3(Si,Nb)[(Si3O9)2(Si9O27)2SiO](OH,H2O)3(Cl,OH)Trig. 3 : R3
RastsvetaeviteNa27K8Ca12Fe3Zr6Si52O144(O,OH,H2O)6Cl2Trig. 3m : R3m
Selsurtite(H3O)12Na3(Ca3Mn3)(Na2Fe)Zr3◻{Si(Si3O9)2(Si9O27)Si9O24(OH)3}(OH)Cl(H2O)Trig. 3 : R3
SergevaniteNa15(Ca3Mn3)(Na2Fe)Zr3Si26O72(OH)3 · H2OTrig. 3 : R3
SiudaiteNa8(Mn2+2Na)Ca6(Fe3+,Mn2+)3Zr3NbSi24(Si,◻,Ti)O74(OH)2Cl · 5H2OTrig. 3m : R3m
TaseqiteNa12Sr3Ca6Fe3Zr3Nb[(Si3O9)2(Si9O27)2SiO]Cl2(O,OH,H2O)3Trig. 3m : R3m
'UM1971-22-SiO:CaClFeHMgMnNaNbZr'Na12Ca5(Ce,La,Y,Ca)Zr3(Zr,Nb)(Fe,Mn)3[Si9O24-26(OH)1-3]2[Si3O9]2ClTrig. 3m : R3m
'UM1990-78-SiO:CaClFeHKNaZr'(H3O)7(Na,K)5(Ca,Sr,Mn)6Zr3[Si3O7(O,OH)2]2[Si9O23(O,OH)4]2[SiNaFe(Zr,Ti,Al,Nb)◻]Cl1.5(O,OH)Trig. 3m : R3m
'UM1990-79-SiO:CaClFeHMnNaNbREEZr'Na14Ca5(Mg,Ca,Mn)Zr3(Si3O9)2(Si9O27)2(Si,Nb,Al,Zr)2(Fe,Zr)3(Mn,Na,Ce,La,Y)(Na,H2O,K,Sr)(OH)4-5(OH,Cl)
'UM1990-80-SiO:CaFeHMnNaNbREEZr'Na14Ca4(Mn,Ca)2Zr3(Si3O9)2(Si9O27)2(Si,Nb,Al,Zr)2(Fe,Mn,Al,Ti)3(Na,Ce,La,Y,Mn)(Na,H2O,K,Sr)(OH)7-8
'UM1998-21-SiO:CaCeClHMnNaZr'Na16Ca6(Mn,Ce)3Zr3(Si3O9)2(Si9O27)2(OH,Cl)4 · nH2OTrig. 3m : R3m
'UM1999-36-SiO:CaCeHMnNaNbSrZr'Na17(Ca,Ce,Sr)2Mn3(Zr,Nb)4Si25O73(O,OH,F,Cl)5Trig. 3 : R3
'UM2000-66-SiO:CaClFeHMnNaNbSrZr'Na12(Ca,Mn)6(Sr,Na,K)3(Fe,Mn)3(Zr,Nb)4Si25O66(OH,Cl)11Trig. 3m : R3m
'UM2000-67-SiO:CaClFeHMnNaNbZr'Zr4(Ca,Na,Mn,Fe)6(Fe,Mn,Ti)3Na17Si25O75(Al,Nb,Ti)Cl(OH)4.H2OTrig. 3m : R3m
'UM2000-80- SiO:CaCeFFeHMnNaNbTiZr'Na14(Na,Ca,Ce)(Mn,Ca,Ce)[Fe1.55(Zr,Na)(◻,Ti,Nb)]Zr3(Si,Al)(Si3O9)2(Si9O27)2(OH,O)4(F ,Cl) · H2O
'UM2003-39-SiO:CaClFeHHfNaNbSrTaTiZr'Na12(Na,K,Mn,Sr)2Ca5(Ca,Mn)(Zr,Hf)3(Fe,◻,Ta)3(Si,Nb,W)(Si,Al,Ti)Si24O72(OH,O)3.5Cl · 1.2H2OTrig. 3m : R3m
'UM2004-51-SiO:CaClFFeHNaNbTi'Na16Ca6(Fe,Mn)3Zr3(Ti,Nb)Si26O72FCl0.5 · nH2OTrig. 3m : R3m
'UM2005-36-SiO:AlBaCaClFeHKMnNaREESrTiZr'[(H3O)9.32Na5.86K0.53Ba0.36Sr0.15][Ca5.22Sr0.49Ce0.16Mn0.13][Zr2.42Ti0.54Hf0.02Nb0.02][Na1.48(Fe
'UM2005-37-SiO:AlBaCaClFeHKMnNaREESrTiZr'[(H3O)9.26Na2.12K1.20Ba0.46Sr0.48][Ca5.76Ce0.24][Zr2.92Ti0.08][Na0.62(Fe0.23Mn0.11(H2O)0.34)][Si
'UM2005-38-SiO:AlBaCaClFeHKMnNaNbREESrTiYZr'[(H3O)10.85Na3.3Sr0.48K0.21Ce0.2Y0.1Ba0.04][Ca2.10Na0.9][Ca2.4Na0.3Mn0.3][Zr2.97Hf0.03][Fe1.32
'UM2005-39-SiO:AlBaCaClFeHKMnNaNbREESrTiYZr'[(H3O)11.61Na3.0Sr0.63Ce0.22K0.2Y0.05Ba0.03][Ca2.25Na0.75][Ca2.4Mn0.6][Zr2.98Hf0.02][Fe3+0.66
'UM2005-40-SiO:AlCaClFeHKMnNaNbREESrTiYZr'[(H3O)5.58Na5.25Ce0.63K0.3Y0.19Sr0.05][Ca3][Ca1.71Mn1.29][Zr2.96Hf0.04][(Fe3+1.0Fe2+0.35)(Fe3+
'UM2005-41-SiO:BaCaFeHKMgMnNaNbREESrTiYZr'[(H3O)8.53Na3.51Sr0.55Ce0.45Y0.3Ba0.15K0.06][Ca2.25Sr0.45Na0.3][Ca2.4Mn0.6][Zr2.97Hf0.03][(Mn0.
'UM2006-17-SiO:CaClFFeHMnNaZr'Na15(Ca3Mn3)Zr3(Fe,Zr)3SiSi(Si3O9)2(Si9O27)2O2(OH,F,Cl)3 · 2H2O
'UM2006-18-SiO:CaClFFeHMnNaZr'Na15Ca3(Mn,Fe)3Zr3(Zr,Na)3(Si,Nb)(S,Ti,Si)(Si3O9)2(Si9O27)2(O,OH)5(Cl,F,H2O)Trig. 3 : R3
'UM2006-28-SiO:CaHMnNaZr'Na33Ca12Zr6Mn3(Mn,Nb,Ti)2Si50O132(O,OH)12(OH,H2O,Cl)10
'UM2010-06-SiO:CaFeHMnNaNbREETiZr'[Na,(H3O)]15(Ca3Mn3)Na3Zr3(Si,Ti)[Si25O72OH](OH)2 · 2H2O
'Unnamed (Hydrated Hydrous Na-Ca-Mn-Fe-Zr-Ti Silicate Chloride)'Na37Ca10Mn2FeZr6Si50(Ti,Nb)2O144(OH)5Cl3 · H2OTrig. 3m : R3m
'Unnamed (Hypermanganese Eudialyte)'Na29Ca12Zr6[Si48O132(O,OH)12]{[Na]4[Si]2}{[Mn]3[Mn,Nb,Ti]2}(OH,H2O,Cl)10Trig. 3m(32/m) : R3m
'Unnamed (M4-vacant Sodium Calcium Manganese Zirconium Iron Silicon Hydroxyl Hydrated Eudialyte Group Species)'Na13(Ca3Mn3)Zr3(Fe, Mn)3(◻)(Si)[Si3O9]2[Si9O27]2(O,OH,Cl)3 · 2H2O
VoronkoviteNa15(Na,Ca,Ce)3(Mn,Ca)3Fe3Zr3Si26O72(OH,O)4Cl · H2OTrig. 3 : R3
Zirsilite-(Ce)Na11-12(Ce,Na)3Ca6Mn3Zr3Nb(Si19O55)(Si3O9)2(CO3)(OH)3 · H2OTrig. 3m : R3m

Common AssociatesHide

Associations Based on Photo Data:
2 photos of Feklichevite associated with PectoliteNaCa2Si3O8(OH)
1 photo of Feklichevite associated with 'Orangite'Th(SiO4)
1 photo of Feklichevite associated with NatroliteNa2Al2Si3O10 · 2H2O
1 photo of Feklichevite associated with Aqualite(H3O)8(Na,K,Sr)5Ca6Zr3Si26O66(OH)9Cl

Related Minerals - Strunz-mindat GroupingHide

9.CO.OdikhinchaiteNa9Sr3[(H2O)2Na]Ca6Mn3Zr3NbSi (Si24O72)O(OH)3(CO3) · H2OTrig. 3m : R3m
9.CO.10ManganokhomyakoviteNa12Sr3Ca6Mn3Zr3W[Si25O73](O,OH,H2O)3(OH,Cl)2Trig. 3m : R3m
9.CO.10SergevaniteNa15(Ca3Mn3)(Na2Fe)Zr3Si26O72(OH)3 · H2OTrig. 3 : R3
9.CO.10'UM1990-78-SiO:CaClFeHKNaZr'(H3O)7(Na,K)5(Ca,Sr,Mn)6Zr3[Si3O7(O,OH)2]2[Si9O23(O,OH)4]2[SiNaFe(Zr,Ti,Al,Nb)◻]Cl1.5(O,OH)Trig. 3m : R3m
9.CO.10GolysheviteNa10Ca3Ca6Zr3Fe2SiNb(Si3O9)2(Si9O27)2CO3(OH)3 · H2OTrig. 3m : R3m
9.CO.10Labyrinthite(Na,K,Sr)35Ca12Fe3Zr6TiSi51O144(O,OH,H2O)9Cl3Trig. 3 : R3
9.CO.10'UM1990-79-SiO:CaClFeHMnNaNbREEZr'Na14Ca5(Mg,Ca,Mn)Zr3(Si3O9)2(Si9O27)2(Si,Nb,Al,Zr)2(Fe,Zr)3(Mn,Na,Ce,La,Y)(Na,H2O,K,Sr)(OH)4-5(OH,Cl)
9.CO.10Ilyukhinite(H3O,Na)14Ca6Mn2Zr3Si26O72(OH)2 · 3H2OTrig. 3m : R3m
9.CO.10OneilliteNa15Ca3Mn3Fe2+3Zr3Nb(Si25O73)(O,OH,H2O)3(OH,Cl)2Trig. 3 : R3
9.CO.10'UM1971-22-SiO:CaClFeHMgMnNaNbZr'Na12Ca5(Ce,La,Y,Ca)Zr3(Zr,Nb)(Fe,Mn)3[Si9O24-26(OH)1-3]2[Si3O9]2ClTrig. 3m : R3m
9.CO.10'UM1998-21-SiO:CaCeClHMnNaZr'Na16Ca6(Mn,Ce)3Zr3(Si3O9)2(Si9O27)2(OH,Cl)4 · nH2OTrig. 3m : R3m
9.CO.10Selsurtite(H3O)12Na3(Ca3Mn3)(Na2Fe)Zr3◻{Si(Si3O9)2(Si9O27)Si9O24(OH)3}(OH)Cl(H2O)Trig. 3 : R3
9.CO.10DavinciiteNa12K3Ca6Fe2+3Zr3(Si26O73OH)Cl2Trig. 3m : R3m
9.CO.10Carbokentbrooksite(Na3Na3Na3Na3Na3)Ca6(VMn2+3)Zr3[Si3O9]2[Si9O27SiO][Si9O27Nb(OH)3](CO3)(H2O)Trig. 3m : R3m
9.CO.10Zirsilite-(Ce)Na11-12(Ce,Na)3Ca6Mn3Zr3Nb(Si19O55)(Si3O9)2(CO3)(OH)3 · H2OTrig. 3m : R3m
9.CO.10TaseqiteNa12Sr3Ca6Fe3Zr3Nb[(Si3O9)2(Si9O27)2SiO]Cl2(O,OH,H2O)3Trig. 3m : R3m
9.CO.10Ikranite(Na,H3O)15(Ca,Mn2+)6Fe3+2Zr3[H0-3Si3O9)2(Si9O27)2SiO]Cl · 2-3H2OTrig. 3m : R3m
9.CO.10RaslakiteNa15Ca3Fe2+3(Na,Zr)3Zr3(Si,Nb)[(Si3O9)2(Si9O27)2SiO](OH,H2O)3(Cl,OH)Trig. 3 : R3
9.CO.10Johnsenite-(Ce)Na12(Ce2Ca)Ca6Mn3Zr3[Si3O9]2[Si9O27SiO][Si9O27W(O)3](CO3)(OH,Cl)2Trig. 3m : R3m
9.CO.10'UM2004-51-SiO:CaClFFeHNaNbTi'Na16Ca6(Fe,Mn)3Zr3(Ti,Nb)Si26O72FCl0.5 · nH2OTrig. 3m : R3m
9.CO.10'UM1990-80-SiO:CaFeHMnNaNbREEZr'Na14Ca4(Mn,Ca)2Zr3(Si3O9)2(Si9O27)2(Si,Nb,Al,Zr)2(Fe,Mn,Al,Ti)3(Na,Ce,La,Y,Mn)(Na,H2O,K,Sr)(OH)7-8
9.CO.10'UM2003-39-SiO:CaClFeHHfNaNbSrTaTiZr'Na12(Na,K,Mn,Sr)2Ca5(Ca,Mn)(Zr,Hf)3(Fe,◻,Ta)3(Si,Nb,W)(Si,Al,Ti)Si24O72(OH,O)3.5Cl · 1.2H2OTrig. 3m : R3m
9.CO.10'UM2006-17-SiO:CaClFFeHMnNaZr'Na15(Ca3Mn3)Zr3(Fe,Zr)3SiSi(Si3O9)2(Si9O27)2O2(OH,F,Cl)3 · 2H2O
9.CO.10'UM2006-18-SiO:CaClFFeHMnNaZr'Na15Ca3(Mn,Fe)3Zr3(Zr,Na)3(Si,Nb)(S,Ti,Si)(Si3O9)2(Si9O27)2(O,OH)5(Cl,F,H2O)Trig. 3 : R3
9.CO.10MogoviditeNa9(Ca,Na)12Fe2Zr3Si25O72(CO3) (OH)4Trig. 3m : R3m
9.CO.10'UM2006-28-SiO:CaHMnNaZr'Na33Ca12Zr6Mn3(Mn,Nb,Ti)2Si50O132(O,OH)12(OH,H2O,Cl)10
9.CO.10'Unnamed (Hypermanganese Eudialyte)'Na29Ca12Zr6[Si48O132(O,OH)12]{[Na]4[Si]2}{[Mn]3[Mn,Nb,Ti]2}(OH,H2O,Cl)10Trig. 3m(32/m) : R3m
9.CO.10'Hydrorastsvetaevite'(Na11(H3O)11K6(H2O)1.5Sr)Ca12Fe3Na2MnZr6Si52O144(OH)4.5Cl3.5Trig. 3m : R3m
9.CO.10'UM1999-36-SiO:CaCeHMnNaNbSrZr'Na17(Ca,Ce,Sr)2Mn3(Zr,Nb)4Si25O73(O,OH,F,Cl)5Trig. 3 : R3
9.CO.10'UM2000-66-SiO:CaClFeHMnNaNbSrZr'Na12(Ca,Mn)6(Sr,Na,K)3(Fe,Mn)3(Zr,Nb)4Si25O66(OH,Cl)11Trig. 3m : R3m
9.CO.10GeorgbarsanoviteNa12(Mn,Sr,REE)3Ca6Fe2+3Zr3NbSi25O76Cl2 · H2OTrig. 3m : R3m
9.CO.10'Unnamed (Hydrated Hydrous Na-Ca-Mn-Fe-Zr-Ti Silicate Chloride)'Na37Ca10Mn2FeZr6Si50(Ti,Nb)2O144(OH)5Cl3 · H2OTrig. 3m : R3m
9.CO.10FengchengiteNa12◻3(Ca,Sr)6Fe3+3 Zr3Si(Si25O73)(H2O,OH)3(OH,Cl)2Trig. 3m(32/m) : R3m
9.CO.10EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2Trig. 3m(32/m) : R3m
9.CO.10AlluaiviteNa19(Ca,Mn)6(Ti,Nb)3Si26O74Cl · 2H2OTrig. 3m(32/m) : R3m
9.CO.10'UM2010-06-SiO:CaFeHMnNaNbREETiZr'[Na,(H3O)]15(Ca3Mn3)Na3Zr3(Si,Ti)[Si25O72OH](OH)2 · 2H2O
9.CO.10Aqualite(H3O)8(Na,K,Sr)5Ca6Zr3Si26O66(OH)9ClTrig. 3 : R3
9.CO.10AndrianoviteNa12(K,Sr,Ce)3Ca6Mn3Zr3Nb(Si25O73)(O,H2O,OH)5Trig. 3m : R3m
9.CO.10DualiteNa30(Ca,Na,Ce,Sr)12(Na,Mn,Fe,Ti)6Zr3Ti3Mn[Si51O144](OH,H2O,Cl)9Trig. 3m : R3m
9.CO.10FerrokentbrooksiteNa15Ca6(Fe,Mn)3Zr3NbSi25O73(O,OH,H2O)3Cl2Trig. 3m : R3m
9.CO.10SiudaiteNa8(Mn2+2Na)Ca6(Fe3+,Mn2+)3Zr3NbSi24(Si,◻,Ti)O74(OH)2Cl · 5H2OTrig. 3m : R3m
9.CO.10VoronkoviteNa15(Na,Ca,Ce)3(Mn,Ca)3Fe3Zr3Si26O72(OH,O)4Cl · H2OTrig. 3 : R3
9.CO.10ManganoeudialyteNa14Ca6Mn3Zr3[Si26O72(OH)2](H2O,Cl,O,OH)6Trig. 3m : R3m
9.CO.10RastsvetaeviteNa27K8Ca12Fe3Zr6Si52O144(O,OH,H2O)6Cl2Trig. 3m : R3m
9.CO.10Kentbrooksite(Na,REE)15(Ca,REE)6(Mn2+,Fe2+)3Zr3Nb[Si25O74]F2 · 2H2OTrig. 3m : R3m
9.CO.10Amableite-(Ce)Na15[(Ce1.5Na1.5)Mn3]Mn2Zr3◻Si[Si24O69(OH)3](OH)2 · H2OTrig. 3 : R3
9.CO.10KhomyakoviteNa12Sr3Ca6Fe3Zr3W[Si25O73](O,OH,H2O)3(OH,Cl)2Trig. 3m : R3m

Fluorescence of FeklicheviteHide

In UV light:
Not fluorescent.

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 FeklicheviteHide

References for FeklicheviteHide

Localities for FeklicheviteHide

Showing 1 localities.

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.
Hide all sections | Show all sections

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 (TL)
 
  • Murmansk Oblast
    • Kovdorsky District
      • Kovdor Massif
Zap. Vseross. Mineral. Obshch. (3) +1 other reference
Quick NavTopAbout FeklicheviteUnique IdentifiersIMA Classification Classification Mineral SymbolsPhysical Properties Optical Data Chemistry Crystallography X-Ray Powder DiffractionGeological EnvironmentType Occurrence SynonymsOther LanguagesRelationshipsCommon AssociatesStrunz-MindatFluorescence Other InformationInternet Links References Localities Locality List
 
and/or  
Mindat.org® is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Mindat® and mindat.org® are registered trademarks of the Hudson Institute of Mineralogy.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2026, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph and Ida Chau.
Content on this site may not be used to train, fine-tune, or otherwise develop artificial intelligence or machine learning models without prior written permission - see our Terms & Conditions.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: September 1, 2026 05:42:11 Page updated: August 19, 2026 01:34:37
Go to top of page