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Eveslogite

A valid IMA mineral species
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09189180014946650537679.jpg
Eveslogite, etc.

Fersman Gorge, Eveslogchorr Mt, Khibiny Massif, Murmansk Oblast, Russia
07958120014946650474619.jpg
Eveslogite

Yukspor Mt, Khibiny Massif, Murmansk Oblast, Russia
00331670014946650512472.jpg
Eveslogite

Eveslogchorr Mt, Khibiny Massif, Murmansk Oblast, Russia
09189180014946650537679.jpg
Eveslogite, etc.

Fersman Gorge, Eveslogchorr Mt, Khibiny Massif, Murmansk Oblast, Russia
07958120014946650474619.jpg
Eveslogite

Yukspor Mt, Khibiny Massif, Murmansk Oblast, Russia
00331670014946650512472.jpg
Eveslogite

Eveslogchorr Mt, Khibiny Massif, Murmansk Oblast, Russia
09189180014946650537679.jpg
Eveslogite, etc.

Fersman Gorge, Eveslogchorr Mt, Khibiny Massif, Murmansk Oblast, Russia
01628030014946650513206.jpg
Eveslogite

Yukspor Mt, Khibiny Massif, Murmansk Oblast, Russia
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About EveslogiteHide

Formula:
(Na,K,Ca,Sr,Ba)48 [(Ti,Nb,Mn,Fe2+)12Si48O144(OH)12](F,OH,Cl)14
Colour:
light-brown or yellow-brown
Lustre:
Vitreous, Silky
Hardness:
5
Specific Gravity:
2.85
Crystal System:
Monoclinic
Name:
Named for the type locality, Mt. Eveslogchorr, Khibiny massif, Kola peninsula, Russia.
This page provides mineralogical data about Eveslogite.


Unique IdentifiersHide

Mindat ID:
27104
Long-form identifier:
mindat:1:1:27104:8
GUID
(UUID V4):
edbdc761-db38-484f-9900-25506bc5abbb

IMA Classification of EveslogiteHide

IMA status:
Approved
IMA Formula:
(Ca,K,Na,Sr,Ba)48(Ti,Nb,Fe,Mn)12(OH)12Si48O144(OH,F,Cl)14
Approval year:
2001

Classification of EveslogiteHide

Strunz-mindat (2023):
9.DG.97

9 : SILICATES (Germanates)
D : Inosilicates
G : Inosilicates with 3-periodic single and multiple chains

Mineral SymbolsHide

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

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

Physical Properties of EveslogiteHide

Lustre:
Vitreous, Silky
Colour:
light-brown or yellow-brown
Streak:
white
Hardness:
5 on Mohs scale
Hardness Data:
Measured
Tenacity:
Brittle
Cleavage:
Perfect
{001}and {010} cleavages
Fracture:
Splintery
Density:
2.85 g/cm3 (Measured)    2.93 g/cm3 (Calculated)

Optical Data of EveslogiteHide

Type:
Biaxial (-)
RI values:
nα = 1.631(2) nβ = 1.641(2) nγ = 1.647(2)
2V:
Calculated: 82°
Max Birefringence:
δ = 0.016
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Pleochroism:
Visible
Comments:
Y and Z = pale yellow, X = colorless

Chemistry of EveslogiteHide

Mindat Formula:
(Na,K,Ca,Sr,Ba)48 [(Ti,Nb,Mn,Fe2+)12Si48O144(OH)12](F,OH,Cl)14
Elements listed:
Ba, Ca, Cl, F, Fe, H, K, Mn, Na, Nb, O, Si, Sr, Ti - search for minerals with similar chemistry

Crystallography of EveslogiteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P2/m
Cell Parameters:
a = 14.069(3) Å, b = 24.937(5) Å, c = 44.31(2) Å
β = 95.02(4)°
Ratio:
a:b:c = 0.564 : 1 : 1.777
Unit Cell V:
15,486.03 ų (Calculated from Unit Cell)
Z:
4

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
12.33 Å(51)
6.199 Å(42)
3.127 Å(65)
3.110 Å(52)
2.990 Å(59)
2.940 Å(45)
2.835 Å(100)

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 EveslogiteHide

Type Locality:
ⓘ Fersman Gorge, Eveslogchorr Mt, Khibiny Massif, Murmansk Oblast, Russia
General Appearance of Type Material:
Fibrous grains, up to 0.05 mm across and 5 cm long.
Place of Conservation of Type Material:
Fersman Mineraloigcal Museum, Moscow, Russia
Geological Setting of Type Material:
A monomineralic veinlet that cuts poikilitic nepheline syenite.
Associated Minerals at Type Locality:
ShcherbakoviteNephelineK FeldsparEudialyteBiotite
AstrophylliteFluorapatite

Synonyms of EveslogiteHide

Other Language Names for EveslogiteHide

Simplified Chinese:埃弗斯罗格石
Traditional Chinese:埃弗斯羅格石

Common AssociatesHide

Associated Minerals Based on Photo Data:
2 photos of Eveslogite associated with Titanium-bearing Biotite

Related Minerals - Strunz-mindat GroupingHide

9.DG.CalcinaksiteKNaCa(Si4O10) · H2OTric. 1 : P1
9.DG.Barrydawsonite-(Y)Na1.5Y0.5CaSi3O8(OH)Mon. 2/m : P21/b
9.DG.ParatobermoriteCa4(Al0.5Si0.5)2Si4O16(OH)(H2O)2 · (Ca · 3H2O)Mon. 2/m
9.DG.EnricofrancoiteKNaCaSi4O10Tric. 1 : P1
9.DG.02SteedeiteNaMn2[Si3BO9](OH)2Tric. 1 : P1
9.DG.02NolzeiteNaMn2[Si3BO9](OH)2 · 2H2OTric. 1 : P1
9.DG.05BustamiteCaMn2+(Si2O6)Tric. 1 : P1
9.DG.05FerrobustamiteCaFe2+(Si2O6)Tric. 1
9.DG.05PectoliteNaCa2Si3O8(OH)Tric. 1 : P1
9.DG.05SeranditeNaMn2+2Si3O8(OH)Tric. 1 : P1
9.DG.05WollastoniteCa3(Si3O9)Tric. 1 : P1
9.DG.05Wollastonite-1ACaSiO3Tric. 1 : P1
9.DG.05TanohataiteLiMn2Si3O8(OH)Tric. 1 : P1
9.DG.05SchizoliteNaCaMnSi3O8(OH)Tric. 1 : P1
9.DG.05MurakamiiteLiCa2Si3O8(OH)Tric. 1 : P1
9.DG.05DalnegorskiteCa5Mn(Si3O9)2Tric. 1 : P1
9.DG.07CascanditeCaScSi3O8(OH)Tric. 1
9.DG.08Plombièrite[Ca4Si6O16(OH)2 · 2H2O] · (Ca · 5H2O)Orth.
9.DG.10Clinotobermorite[Ca4Si6O17 · 2H2O] · (Ca · 3H2O)Mon.
9.DG.10RiversideiteCa5(HSi3O9)2 · 2H2OOrth.
9.DG.10TobermoriteCa4Si6O17(H2O)2 · (Ca · 3H2O)Mon. 2 : P21
9.DG.12JusiteNa2Ca15Al4Si16O54 · 17H2O
9.DG.12KenotobermoriteCa4Si6O15(OH)2(H2O)2 · 3H2OMon.
9.DG.15FoshagiteCa4(Si3O9)(OH)2Tric. 1 : P1
9.DG.20JenniteCa9(Si3O9)2(OH)8 · 8H2OTric. 1 : P1
9.DG.20KameneviteK2TiSi3O9 · H2OOrth. 2 2 2 : P21 21 21
9.DG.25ParaumbiteK3Zr2H(Si3O9)2 · nH2OOrth. mm2
9.DG.25UmbiteK2(Zr,Ti)Si3O9 · H2OOrth. 2 2 2 : P21 21 21
9.DG.30SørenseniteNa4SnBe2Si6O16(OH)4Mon. 2/m : B2/b
9.DG.32Escheite Ca2NaMnTi5[Si12O34]O2(OH)3 · 12H2OOrth. mm2 : Ama2
9.DG.35XonotliteCa6(Si6O17)(OH)2Mon. 2/m : B2/m
9.DG.40HillebranditeCa2(SiO3)(OH)2Orth. mmm (2/m 2/m 2/m) : Cmcm
9.DG.45ZoriteNa8(Ti,Nb)5(Si6O17)2(OH,O)5 · 14H2OOrth.
9.DG.45ChivruaiiteCa4(Ti,Nb)5(Si6O17)2(OH,O)5 · 13-14H2OOrth. mmm (2/m 2/m 2/m) : Cmmm
9.DG.50Haineaultite(Na,Ca)5Ca(Ti,Nb)5(Si6O17)2(OH,F)8 · 5H2OOrth. 2 2 2 : C2 2 2
9.DG.55EpididymiteNa2Be2Si6O15 · H2OOrth. mmm (2/m 2/m 2/m) : Pnma
9.DG.60EudidymiteNa2Be2Si6O15 · H2OMon. 2/m : B2/b
9.DG.65ElpiditeNa2ZrSi6O15 · 3H2OOrth.
9.DG.65PatyniteNaKCa4[Si9O23]Tric. 1 : P1
9.DG.67WhelaniteCu2+2Ca6[Si6O17(OH)](CO3)(OH)3 · 2H2OOrth. mm2 : Pnn2
9.DG.70Fenaksite(K,Na)4(Fe,Mn)2(Si4O10)2(OH,F)Tric. 1 : P1
9.DG.70LitidioniteCuNaKSi4O10Tric. 1 : P1
9.DG.70ManaksiteKNaMnSi4O10Tric. 1 : P1
9.DG.70YusupoviteNa2Zr(Si6O15) · 2.5H2OMon. 2/m : B2/m
9.DG.75TinaksiteK2Na(Ca,Mn2+)2TiO[Si7O18(OH)]Tric.
9.DG.75TokkoiteK2Ca4[Si7O18(OH)](OH,F)Tric.
9.DG.75SenkevichiteCsKNaCa2TiO[Si7O18](OH)Tric. 1 : P1
9.DG.80CanasiteK3Na3Ca5Si12O30(OH)4Mon. m : Bm
9.DG.80FluorcanasiteK3Na3Ca5Si12O30F4 · H2OMon. m : Bm
9.DG.85MiseriteK1.5-x(Ca,Y,REE)5(Si6O15)(Si2O7)(OH,F)2 · yH2OTric.
9.DG.90FrankameniteK3Na3Ca5(Si12O30)(F,OH)4 · H2OTric. 1 : P1
9.DG.92Charoite(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 · ~3H2OMon. 2/m : P21/m
9.DG.95YuksporiteK4(Ca,Na)14(Sr,Ba)2(◻,Mn,Fe)(Ti,Nb)4(O,OH)4(Si6O17)2(Si2O7)3(H2O,OH)3Mon. 2/m : P21/m

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 EveslogiteHide

References for EveslogiteHide

Reference List:
Men'shikov Yu.P., Khomyakov A.P., Ferraris G. et al. (2003) Eveslogite, (Ca,K,Na,Sr,Ba)48[(Ti,Nb,Mn,Fe")12(OH)12Si48O144](F,OH,Cl)14, a new mineral from the Khibiny alkaline massif, Kola peninsula, Russia. - Zapiski VMO, 132(1), 59-67 (in Russian).
American Mineralogist: 89, 249 (2004) (abstract).

Localities for EveslogiteHide

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 (TL)
 
  • Murmansk Oblast
    • Khibiny Massif
      • Eveslogchorr Mt
Pekov, Igor V. (1998) Minerals first discovered on the territory of the former Soviet Union. Ocean Pictures, Moscow. 369pp.
Men'shikov Yu.P., Khomyakov A.P., Ferraris G. et al. (2003) Eveslogite, (Ca,K,Na,Sr,Ba)48[(Ti,Nb,Mn,Fe")12(OH)12Si48O144](F,OH,Cl)14, a new mineral from the Khibiny alkaline massif, Kola peninsula, Russia, - Zapiski VMO, 132(1), 59-67 (in Russ.)
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