IMPORTANT MESSAGE. We need your support now to keep mindat.org running. Click here to find out why.
Log InRegister
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 Educators
Minerals by PropertiesMinerals by ChemistryAdvanced 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
StatisticsThe ElementsUsersBooks & MagazinesMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

Nefedovite

This page is currently not sponsored. Click here to sponsor this page.
Hide all sections | Show all sections

About NefedoviteHide

Dr. Evgeniy Ivanovich Nefedov
Formula:
Na5Ca4(PO4)4F
Hardness:
Crystal System:
Triclinic
Name:
Named in honor of Dr. Yevgeny I. Nefedov (Евгения Ивановича Нефедова) (1910–1976), Russian mineralogist, St. Petersburg, Russia, involved in the discovery of a number of Kola minerals.
This page provides mineralogical data about Nefedovite.


Classification of NefedoviteHide

Approved
First Published:
1983
8.BO.30

8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
O : With only large cations, (OH, etc.):RO4 about 1:1
41.11.4.1

41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
11 : Miscellaneous
22.1.7

22 : Phosphates, Arsenates or Vanadates with other Anions
1 : Phosphates, arsenates or vanadates with fluoride

Physical Properties of NefedoviteHide

Hardness:
4½ on Mohs scale

Optical Data of NefedoviteHide

Type:
Biaxial (+)
RI values:
nα = 1.571 nγ = 1.590
Max Birefringence:
δ = 0.019
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
r < v

Chemical Properties of NefedoviteHide

Formula:
Na5Ca4(PO4)4F

Crystallography of NefedoviteHide

Crystal System:
Triclinic
Cell Parameters:
a = 5.4 Å, b = 11.64 Å, c = 16.48 Å
α = 134.99°, β = 90.04°, γ = 89.96°
Ratio:
a:b:c = 0.464 : 1 : 1.416
Unit Cell V:
732.60 ų (Calculated from Unit Cell)

Type Occurrence of NefedoviteHide

Reference:
Khomyakov, A.P., Nechelyustov, G.N., Dorokhova, G.I. (1983) Nefedovite, Na5Ca4(PO4)4F, a new mineral. Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva: 112(4): 479-483.

Synonyms of NefedoviteHide

Other Language Names for NefedoviteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Villiaumite4 photos of Nefedovite associated with Villiaumite on mindat.org.
Eudialyte Group1 photo of Nefedovite associated with Eudialyte Group on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

8.BO.05NacaphiteNa2Ca(PO4)FMon. 2/m : P21/b
8.BO.10PreisingeriteBi3(AsO4)2O(OH)Tric. 1 : P1
8.BO.10PetitjeaniteBi3(PO4)2O(OH)Tric.
8.BO.10SchumacheriteBi3(VO4)2O(OH)Tric.
8.BO.15AtelestiteBi2(AsO4)O(OH)Mon. 2/m
8.BO.15HechtsbergiteBi2(VO4)O(OH)Mon. 2/m : P21/b
8.BO.15SmrkoveciteBi2(PO4)O(OH)Mon. 2/m : P21/b
8.BO.20KombatitePb14(VO4)2O9Cl4Mon.
8.BO.20SahlinitePb14(AsO4)2O9Cl4Mon.
8.BO.25HeneuiteCaMg5(CO3)(PO4)3(OH)Tric. 1 : P1
8.BO.35Kuznetsovite(Hg+2)Hg2+(AsO4)ClIso. 2 3 : P21 3
8.BO.40Artsmithite(Hg+2)2Al(PO4)1.74(OH)1.78Mon. 2/m : B2/b
8.BO.45SchlegeliteBi7(AsO4)3(MoO4)2O4Orth. mmm (2/m 2/m 2/m)

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

22.1.1AmblygoniteLiAl(PO4)FTric. 1 : P1
22.1.2LacroixiteNaAl(PO4)FMon. 2/m : B2/b
22.1.3NatrophosphateNa7(PO4)2F · 19H2OIso. m3m (4/m 3 2/m) : Fd3c
22.1.5NacaphiteNa2Ca(PO4)FMon. 2/m : P21/b
22.1.6ArctiteNa2Ca4(PO4)3FTrig. 3m (3 2/m) : R3m
22.1.9FluorapatiteCa5(PO4)3FHex. 6/m : P63/m
22.1.10HerderiteCaBePO4(F,OH)Mon. 2/m
22.1.11IsokiteCaMg(PO4)FMon. 2/m : B2/b
22.1.12PanasqueiraiteCaMg(PO4)(OH,F)Mon.
22.1.13BabefphiteBaBePO4(F,OH)Tet.
22.1.14FluelliteAl2(PO4)F2(OH) · 7H2OOrth. mmm (2/m 2/m 2/m) : Fddd
22.1.15MinyuliteKAl2(PO4)2(OH,F) · 4H2OOrth. mm2 : Pba2
22.1.16MoriniteNaCa2Al2(PO4)2(OH)F4 · 2H2OMon. 2/m
22.1.17BøggilditeNa2Sr2Al2PO4F9Mon.
22.1.18FluorstrophiteSrCaSr3(PO4)3FHex. 6/m : P63/m
22.1.19ViitaniemiiteNa(Ca,Mn2+)Al(PO4)(F,OH)3Mon.
22.1.20VäyryneniteMn2+Be(PO4)(OH,F)Mon. 2/m : P21/b
22.1.21MaxwelliteNaFe3+(AsO4)FMon.
22.1.22Wagnerite(Mg,Fe2+)2(PO4)FMon. 2/m : P21/b
22.1.23Triplite(Mn2+,Fe2+)2(PO4)(F,OH)Mon. 2/m
22.1.24Magniotriplite(Mg,Fe2+,Mn2+)2PO4FMon.
22.1.25Zwieselite(Fe2+,Mn2+)2(PO4)FMon. 2/m : P21/b
22.1.26McauslaniteFe3Al2(PO4)3(PO3OH)F · 18H2OTric.
22.1.27RichelliteCaFe3+2(PO4)2(OH,F)2Amor.
22.1.28SvabiteCa5(AsO4)3FHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
22.1.29TilasiteCaMg(AsO4)FMon. m : Bb
22.1.30Johnbaumite-MCa5(AsO4)3OHMon. 2/m : P21/m
22.1.31DurangiteNaAl(AsO4)FMon. 2/m : B2/b

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.

References for NefedoviteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Khomyakov, A.P., Nechelyustov, G.N., Dorokhova, G.I. (1983) Nefedovite, Na5Ca4(PO4)4F, a new mineral. Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva: 112(4): 479-483.
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.
Sebals, M., Dorokhova, G.I., Pobedimskaya, E.A., Khomyakov, A.P. (1984) The crystal structure of nefedovite and its typomorphism. Doklady Akademii Nauk SSSR: 278: 353-357.

Internet Links for NefedoviteHide

Localities for NefedoviteHide

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 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Russia
 
  • Northern Region
    • Murmanskaya Oblast'
      • Khibiny Massif
        • Koashva Mt
Sergey Vasiliev of Systematic Mineralogy (dealer)
Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
        • The Carbonatite Stock in the vicinity of Tul'ilukht Bay
Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
        • Yukspor Mt
Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2018, except where stated. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: October 16, 2018 13:41:21 Page generated: August 10, 2018 20:33:58
Go to top of page