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Colorless, cream, pink, red, brown
Vitreous, Greasy, Dull
Specific Gravity:
Crystal System:
For Frank Neighbor, Sun Oil Co. geologist, Salt Lake City Utah
Related to the K analogue, parascandolaite.

Hide all sections | Show all sections

Classification of NeighboriteHide


A : Simple halides, without H2O
A : M:X = 1:1, 2:3, 3:5, etc.

1 : AmBX3

8 : Halides - Fluorides, Chlorides, Bromides and Iodides; also Fluoborates and Fluosilicates
4 : Halides of the alkaline earths and Mg

Physical Properties of NeighboriteHide

Vitreous, Greasy, Dull
Transparent, Opaque
Colorless, cream, pink, red, brown
May be zoned
4½ on Mohs scale
3.03(3) g/cm3 (Measured)    3.06 g/cm3 (Calculated)

Optical Data of NeighboriteHide

r < v weak

Chemical Properties of NeighboriteHide


Crystallography of NeighboriteHide

Crystal System:
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Cell Parameters:
a = 5.36 Å, b = 7.67 Å, c = 5.5 Å
a:b:c = 0.699 : 1 : 0.717
Unit Cell V:
226.11 ų (Calculated from Unit Cell)
Pseudo-octahedral or pseudocubic crystals, oblong to rounded grains
Polysynthetic and interpenetrant
space group Pbnm

Type Occurrence of NeighboriteHide

Geological Setting of Type Material:
Aluminum deficient, dolomitic oil shale

Other Language Names for NeighboriteHide

Relationship of Neighborite to other SpeciesHide

Other Members of this group:
ParascandolaiteKMgF3Iso. m3m (4/m 3 2/m) : Pm3m

Common AssociatesHide

Associated Minerals Based on Photo Data:
Siderite15 photos of Neighborite associated with Siderite on
Aegirine14 photos of Neighborite associated with Aegirine on
Gaidonnayite10 photos of Neighborite associated with Gaidonnayite on
Elpidite4 photos of Neighborite associated with Elpidite on
Pyrrhotite3 photos of Neighborite associated with Pyrrhotite on
Quartz2 photos of Neighborite associated with Quartz on
Rémondite-(Ce)2 photos of Neighborite associated with Rémondite-(Ce) on
Rutile1 photo of Neighborite associated with Rutile on
Natrolite1 photo of Neighborite associated with Natrolite on

Related Minerals - Nickel-Strunz GroupingHide

3.AA.Brontesite(NH4)3PbCl5Orth. mmm (2/m 2/m 2/m) : Pnma
3.AA.05MarshiteCuIIso. 4 3m : F4 3m
3.AA.05Miersite(Ag,Cu)IIso. 4 3m : F4 3m
3.AA.05NantokiteCuClIso. 4 3m : F4 3m
3.AA.10IodargyriteAgIHex. 6mm : P6mm
3.AA.15BromargyriteAgBrIso. m3m (4/m 3 2/m) : Fm3m
3.AA.15ChlorargyriteAgClIso. m3m (4/m 3 2/m) : Fm3m
3.AA.20CarobbiiteKFIso. m3m (4/m 3 2/m)
3.AA.20GriceiteLiFIso. m3m (4/m 3 2/m) : Fm3m
3.AA.20HaliteNaClIso. m3m (4/m 3 2/m) : Fm3m
3.AA.20SylviteKClIso. m3m (4/m 3 2/m) : Fm3m
3.AA.20VilliaumiteNaFIso. m3m (4/m 3 2/m) : Fd3m
3.AA.25SalammoniacNH4ClIso. 4 3 2
3.AA.25LafossaiteTl(Cl,Br)Iso. m3m (4/m 3 2/m) : Pm3m
3.AA.30Calomel(Hg2)2+Cl2Tet. 4/mmm (4/m 2/m 2/m) : I4/mmm
3.AA.30Moschelite(Hg2+2)I2Tet. 4/mmm (4/m 2/m 2/m) : I4/mmm
3.AA.40ChlorocalciteKCaCl3Orth. mmm (2/m 2/m 2/m) : Pnma
3.AA.55ChallacolloiteKPb2Cl5Mon. 2/m : P21/b
3.AA.60HephaistositeTlPb2Cl5Mon. 2/m : P21/b

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

8.4.1SellaiteMgF2Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm
8.4.3BischofiteMgCl2 · 6H2OMon. 2/m : B2/m
8.4.4KorshunovskiteMg2Cl(OH)3 · 4H2OTric.
8.4.5CarnalliteKMgCl3 · 6H2OOrth. mmm (2/m 2/m 2/m) : Pnna
8.4.6TachyhydriteCaMg2Cl6 · 12H2OTrig.
8.4.7FluoriteCaF2Iso. m3m (4/m 3 2/m) : Fm3m
8.4.8SinjariteCaCl2 · 2H2OTet.
8.4.9AntarcticiteCaCl2 · 6H2OTrig. 3 2 : P3 2 1
8.4.10ChlorocalciteKCaCl3Orth. mmm (2/m 2/m 2/m) : Pnma
8.4.12JarliteNa(Sr,Na)7MgAl6F32(OH,H2O)2Mon. 2/m
8.4.14TikhonenkoviteSr[AlF4(OH)(H2O)]Mon. 2/m : P21/b
8.4.15AcuminiteSr[AlF4(OH)(H2O)]Mon. 2/m : B2/b
8.4.16FrankdicksoniteBaF2Iso. m3m (4/m 3 2/m) : Fm3m
8.4.18BøgvaditeNa2SrBa2Al4F20Mon. 2/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.

References for NeighboriteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
American Mineralogist (1961): 46: 387-393.
Mineralogical Record (1990): 21: 325-326.
Pischedda, V., Ferraris, G., Raade, G. (2005): Single-crystal X-ray diffraction study on neighborite (NaMgF3) from Gjerdingselva, Norway. Neues Jahrbuch für Mineralogie, Abhandlungen, 182, 23-29.

Internet Links for NeighboriteHide

Localities for NeighboriteHide

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.
  • Québec
    • Laurentides
      • Deux-Montagnes RCM
        • Oka
Chen, W., Kamenetsky, V. S., & Simonetti, A. (2013). Evidence for the alkaline nature of parental carbonatite melts at Oka complex in Canada. Nature communications, 4, ncomms3687.
    • Montérégie
      • La Vallée-du-Richelieu RCM
        • Mont Saint-Hilaire
Horváth, L and Gault, R.A. (1990), The mineralogy of Mont Saint-Hilaire Quebec. Mineralogical Record: 21: 284-359.
      • Lajemmerais RCM
        • Varennes & St-Amable
          • Saint-Amable sill
R. Tibbit, Horváth & Can. Museum of Nature collections - XRD & EDS
  • Oppland
    • Lunner
      • Nordmarka
Raade, G. & Haug, J. (1980): Rare Fluorides from a soda granite in the Oslo Region, Norway. Mineralogical Record, 11,83-91
  • Eastern-Siberian Region
    • Transbaikalia (Zabaykalye)
      • Chitinskaya Oblast'
P.M. Karashov data
  • Northern Region
    • Murmanskaya Oblast'
      • Khibiny Massif
Khomyakov A P, Aleksandrov V V, Krasnova N I, Ermilov V V, Smolyaninova N N (1982) Bonshtedtite, Na3Fe(PO4)(CO3), a new mineral. Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva 111, issue 4, 486-490
Khomyakov A P, Aleksandrov V V, Krasnova N I, Ermilov V V, Smolyaninova N N (1982) Bonshtedtite, Na3Fe(PO4)(CO3), a new mineral. Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva 111, issue 4, 486-490
Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
Khomyakov, A.P. (1995): Mineralogy of hyperagpaitic alkaline rocks. Clarendon Press, Oxford, 223 pp.; Yakovenchuk, V.N., Ivanyuk, G.Yu., Pakhomovsky, Ya.A., Men'shikov, Yu.P. (2005): Khibiny. Laplandia Minerals Ltd. (in association with the Mineralogical Society of Great Britain and Ireland), Apatity, 468 pp.
Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
      • Lovozero Massif
Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow; Pekov, I. et al (2003): New Data on Minerals: 38: 20-33.
          • Umbozero mine (Umbozerskii mine; Umba Mine)
Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow; Khomyakov A P, Shumyatskaya N G, Polezhaeva L T (1992) Shomiokite-(Y), Na3Y(CO3)3·3H2O: a new mineral, Zapiski Vserossijskogo Mineralogicheskogo Obshchestva, 121, issue 6 129-132
        • Suoluaiv Mt
  • Arusha Region
Mitchell, R.H. (1997) Carbonate-carbonate immiscibility, neighborite and potassium iron sulphide in Oldoinyo Lengai natrocarbonatite. Mineralogical Magazine: 61: 779-789.; Mattsson, H. B., & Reusser, E. (2010). Mineralogical and geochemical characterization of ashes from an early phase of the explosive September 2007 eruption of Oldoinyo Lengai (Tanzania). Journal of African Earth Sciences, 58(5), 752-763.; Victoria Sekisova, Victor Victorovich Sharygin, A. N. Zaitsev, Stanislav Strekopytov (2015) Liquid Immiscibility Геология и геофизика, 2015, т. 56, № 12, с. 2173—2197
  • Utah
    • Uintah Co.
UGMS Bull 117 Minerals and Mineral Localities of Utah
Am Min 46:379-393
      • Uteland Knoll District (Ouray District)
        • Ouray
Min Rec 8:5 p369
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