Neighborite
A valid IMA mineral species
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About Neighborite
Frank Neighbor
Formula:
NaMgF3
Colour:
Colorless, cream, pink, red, brown
Lustre:
Vitreous, Greasy, Dull
Hardness:
4½
Specific Gravity:
3.03
Crystal System:
Orthorhombic
Name:
Named in honor of Frank Neighbor (1 December 1906, Harper, Kansas, USA - 13 January 1996, Casper, Wyoming, USA), Sun Oil Co. geologist, Salt Lake City Utah. He made the drill cores, in which the mineral was discovered, available for study.
Type Locality:
Unique Identifiers
Mindat ID:
2871
Long-form identifier:
mindat:1:1:2871:0
IMA Classification of Neighborite
Approved
First published:
1961
Classification of Neighborite
3.AA.35
3 : HALIDES
A : Simple halides, without H2O
A : M:X = 1:1, 2:3, 3:5, etc.
3 : HALIDES
A : Simple halides, without H2O
A : M:X = 1:1, 2:3, 3:5, etc.
11.1.1.1
11 : HALIDE COMPLEXES
1 : AmBX3
11 : HALIDE COMPLEXES
1 : AmBX3
8.4.2
8 : Halides - Fluorides, Chlorides, Bromides and Iodides; also Fluoborates and Fluosilicates
4 : Halides of the alkaline earths and Mg
8 : Halides - Fluorides, Chlorides, Bromides and Iodides; also Fluoborates and Fluosilicates
4 : Halides of the alkaline earths and Mg
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Nbo | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Neighborite
Vitreous, Greasy, Dull
Transparency:
Transparent, Opaque
Colour:
Colorless, cream, pink, red, brown
Comment:
May be zoned
Hardness:
4½ on Mohs scale
Fracture:
Irregular/Uneven
Density:
3.03(3) g/cm3 (Measured) 3.06 g/cm3 (Calculated)
Optical Data of Neighborite
Type:
Isotropic
Dispersion:
r < v weak
Chemistry of Neighborite
Mindat Formula:
NaMgF3
Element Weights:
Elements listed:
Crystallography of Neighborite
Crystal System:
Orthorhombic
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
Ratio:
a:b:c = 0.699 : 1 : 0.717
Unit Cell V:
226.11 ų (Calculated from Unit Cell)
Z:
4
Morphology:
Pseudo-octahedral or pseudocubic crystals, oblong to rounded grains.
Twinning:
Polysynthetic and interpenetrant.
Comment:
space group Pbnm
Crystal Structure
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0009125 | Neighborite | Mitchell R H, Alexander M, Cranswick L M D, Swainson I P (2007) A powder neutron diffraction study of the crystal structure of the fluoroperovskite NaMgF3 (neighborite) from 300 to 3.6 K Physics and Chemistry of Minerals 34 705-712 | 2007 | synthetic | 0 | 293 | |
| 0009124 | Neighborite | Mitchell R H, Alexander M, Cranswick L M D, Swainson I P (2007) A powder neutron diffraction study of the crystal structure of the fluoroperovskite NaMgF3 (neighborite) from 300 to 3.6 K Physics and Chemistry of Minerals 34 705-712 | 2007 | synthetic | 0 | 293 | |
| 0009123 | Neighborite | Mitchell R H, Alexander M, Cranswick L M D, Swainson I P (2007) A powder neutron diffraction study of the crystal structure of the fluoroperovskite NaMgF3 (neighborite) from 300 to 3.6 K Physics and Chemistry of Minerals 34 705-712 | 2007 | synthetic | 0 | 293 | |
| 0009122 | Neighborite | Mitchell R H, Alexander M, Cranswick L M D, Swainson I P (2007) A powder neutron diffraction study of the crystal structure of the fluoroperovskite NaMgF3 (neighborite) from 300 to 3.6 K Physics and Chemistry of Minerals 34 705-712 | 2007 | synthetic | 0 | 293 | |
| 0009121 | Neighborite | Mitchell R H, Alexander M, Cranswick L M D, Swainson I P (2007) A powder neutron diffraction study of the crystal structure of the fluoroperovskite NaMgF3 (neighborite) from 300 to 3.6 K Physics and Chemistry of Minerals 34 705-712 | 2007 | synthetic | 0 | 293 | |
| 0009120 | Neighborite | Mitchell R H, Alexander M, Cranswick L M D, Swainson I P (2007) A powder neutron diffraction study of the crystal structure of the fluoroperovskite NaMgF3 (neighborite) from 300 to 3.6 K Physics and Chemistry of Minerals 34 705-712 | 2007 | synthetic | 0 | 293 | |
| 0009119 | Neighborite | Mitchell R H, Alexander M, Cranswick L M D, Swainson I P (2007) A powder neutron diffraction study of the crystal structure of the fluoroperovskite NaMgF3 (neighborite) from 300 to 3.6 K Physics and Chemistry of Minerals 34 705-712 | 2007 | synthetic | 0 | 293 | |
| 0009118 | Neighborite | Mitchell R H, Alexander M, Cranswick L M D, Swainson I P (2007) A powder neutron diffraction study of the crystal structure of the fluoroperovskite NaMgF3 (neighborite) from 300 to 3.6 K Physics and Chemistry of Minerals 34 705-712 | 2007 | synthetic | 0 | 293 | |
| 0009117 | Neighborite | Mitchell R H, Alexander M, Cranswick L M D, Swainson I P (2007) A powder neutron diffraction study of the crystal structure of the fluoroperovskite NaMgF3 (neighborite) from 300 to 3.6 K Physics and Chemistry of Minerals 34 705-712 | 2007 | synthetic | 0 | 293 | |
| 0009116 | Neighborite | Mitchell R H, Alexander M, Cranswick L M D, Swainson I P (2007) A powder neutron diffraction study of the crystal structure of the fluoroperovskite NaMgF3 (neighborite) from 300 to 3.6 K Physics and Chemistry of Minerals 34 705-712 | 2007 | synthetic | 0 | 293 | |
| 0009115 | Neighborite | Mitchell R H, Alexander M, Cranswick L M D, Swainson I P (2007) A powder neutron diffraction study of the crystal structure of the fluoroperovskite NaMgF3 (neighborite) from 300 to 3.6 K Physics and Chemistry of Minerals 34 705-712 | 2007 | synthetic | 0 | 293 | |
| 0009114 | Neighborite | Mitchell R H, Alexander M, Cranswick L M D, Swainson I P (2007) A powder neutron diffraction study of the crystal structure of the fluoroperovskite NaMgF3 (neighborite) from 300 to 3.6 K Physics and Chemistry of Minerals 34 705-712 | 2007 | synthetic | 0 | 293 | |
| 0009113 | Neighborite | Mitchell R H, Alexander M, Cranswick L M D, Swainson I P (2007) A powder neutron diffraction study of the crystal structure of the fluoroperovskite NaMgF3 (neighborite) from 300 to 3.6 K Physics and Chemistry of Minerals 34 705-712 | 2007 | synthetic | 0 | 293 | |
| 0020172 | Neighborite | Knight K S (2014) A high-resolution powder neutron diffraction study of the crystal structure of neighborite (NaMgF3) between 9 and 440 K American Mineralogist 99 824-838 | 2014 | synthetic | 0 | 9 | |
| 0004239 | Neighborite | Martin C D, Crichton W A, Liu H, Prakapenka V, Chen J, Parise J B (2006) Rietveld structure refinement of perovskite and post-perovskite phases of NaMgF3 (neighborite) at high pressures American Mineralogist 91 1703-1706 |  | 2006 | synthetic | 27 | 293 |
| 0008544 | Neighborite | Chakhmouradian A R, Ross K, Mitchell R H, Swainson I (2001) The crystal chemistry of synthetic potassium-bearing neighborite, (Na1-xKx)MgF3 Sample studied by neutron diffraction, x = .5 One of two alternative models Physics and Chemistry of Minerals 28 277-284 | 2001 | 0 | 293 | ||
| 0008543 | Neighborite | Chakhmouradian A R, Ross K, Mitchell R H, Swainson I (2001) The crystal chemistry of synthetic potassium-bearing neighborite, (Na1-xKx)MgF3 Sample studied by neutron diffraction, x = .5 One of two alternative models Physics and Chemistry of Minerals 28 277-284 | 2001 | 0 | 293 | ||
| 0008542 | Neighborite | Chakhmouradian A R, Ross K, Mitchell R H, Swainson I (2001) The crystal chemistry of synthetic potassium-bearing neighborite, (Na1-xKx)MgF3 Sample studied by X-ray diffraction, x = .18 Physics and Chemistry of Minerals 28 277-284 | 2001 | 0 | 293 | ||
| 0008541 | Neighborite | Chakhmouradian A R, Ross K, Mitchell R H, Swainson I (2001) The crystal chemistry of synthetic potassium-bearing neighborite, (Na1-xKx)MgF3 Sample studied by neutron diffraction Physics and Chemistry of Minerals 28 277-284 | 2001 | 0 | 293 | ||
| 0008540 | Neighborite | Chakhmouradian A R, Ross K, Mitchell R H, Swainson I (2001) The crystal chemistry of synthetic potassium-bearing neighborite, (Na1-xKx)MgF3 Sample studied by X-ray diffraction Physics and Chemistry of Minerals 28 277-284 | 2001 | 0 | 293 | ||
| 0003924 | Neighborite | Chen J, Liu H, Martin C D, Parise J B, Weidner D J (2005) Crystal chemistry of NaMgF3 perovskite and high pressure and temperature American Mineralogist 90 1534-1539 | | 2005 | 4 | 298 | |
| 0003925 | Neighborite | Chen J, Liu H, Martin C D, Parise J B, Weidner D J (2005) Crystal chemistry of NaMgF3 perovskite and high pressure and temperature American Mineralogist 90 1534-1539 | | 2005 | 4 | 473 | |
| 0003926 | Neighborite | Chen J, Liu H, Martin C D, Parise J B, Weidner D J (2005) Crystal chemistry of NaMgF3 perovskite and high pressure and temperature American Mineralogist 90 1534-1539 | | 2005 | 4 | 673 | |
| 0003927 | Neighborite | Chen J, Liu H, Martin C D, Parise J B, Weidner D J (2005) Crystal chemistry of NaMgF3 perovskite and high pressure and temperature American Mineralogist 90 1534-1539 | | 2005 | 4 | 873 | |
| 0003928 | Neighborite | Chen J, Liu H, Martin C D, Parise J B, Weidner D J (2005) Crystal chemistry of NaMgF3 perovskite and high pressure and temperature American Mineralogist 90 1534-1539 | | 2005 | 4 | 973 | |
| 0003929 | Neighborite | Chen J, Liu H, Martin C D, Parise J B, Weidner D J (2005) Crystal chemistry of NaMgF3 perovskite and high pressure and temperature American Mineralogist 90 1534-1539 | | 2005 | 4 | 1073 | |
| 0003930 | Neighborite | Chen J, Liu H, Martin C D, Parise J B, Weidner D J (2005) Crystal chemistry of NaMgF3 perovskite and high pressure and temperature American Mineralogist 90 1534-1539 | | 2005 | 4 | 1173 | |
| 0003931 | Neighborite | Chen J, Liu H, Martin C D, Parise J B, Weidner D J (2005) Crystal chemistry of NaMgF3 perovskite and high pressure and temperature American Mineralogist 90 1534-1539 | | 2005 | 4 | 1273 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 1.918 Å | (100) |
| 2.71 Å | (50) |
| 3.83 Å | (35) |
| 2.30 Å | (25) |
| 1.556 Å | (25) |
| 2.23 Å | (18) |
| 2.20 Å | (13) |
Comments:
South Ouray, Utah, USA. The data are from the type description.
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 3a: Earth’s earliest Hadean crust | >4.50 |
| 9 : Lava/xenolith minerals (hornfels, sanidinite facies) | |
| 10 : Basalt-hosted zeolite minerals | |
| Near-surface Processes | |
| 24 : Authigenic minerals in terrestrial sediments (see also #17) | |
| Stage 4b: Highly evolved igneous rocks | >3.0 |
| 35 : Ultra-alkali and agpaitic igneous rocks | |
| 36 : Carbonatites, kimberlites, and related igneous rocks |
Geological Setting:
Alkaline syenites, granites.
Type Occurrence of Neighborite
General Appearance of Type Material:
Clusters of pink and brown rounded grains.
Place of Conservation of Type Material:
National Museum of Natural History, Washington, D.C., USA, numbers 115216 and 162603 (type).
Geological Setting of Type Material:
Aluminum deficient, dolomitic oil shale.
Associated Minerals at Type Locality:
Other Language Names for Neighborite
Relationship of Neighborite to other Species
Other Members of Neighborite Subgroup:
| Parascandolaite | KMgF3 | Iso. m3m (4/m 3 2/m) : Pm3m |
Common Associates
Associations Based on Photo Data:
| 15 photos of Neighborite associated with Aegirine | NaFe3+Si2O6 |
| 15 photos of Neighborite associated with Siderite | FeCO3 |
| 10 photos of Neighborite associated with Gaidonnayite | Na2Zr(Si3O9) · 2H2O |
| 4 photos of Neighborite associated with Elpidite | Na2ZrSi6O15 · 3H2O |
| 3 photos of Neighborite associated with Pyrrhotite | Fe1-xS |
| 2 photos of Neighborite associated with Quartz | SiO2 |
| 2 photos of Neighborite associated with Rémondite-(Ce) | Na3(Ce,Ca,Na)3(CO3)5 |
| 1 photo of Neighborite associated with Natrolite | Na2Al2Si3O10 · 2H2O |
| 1 photo of Neighborite associated with Rutile | TiO2 |
Related Minerals - Strunz-mindat Grouping
| 3.AA. | Brontesite | (NH4)3PbCl5 |
| 3.AA.05 | Marshite | CuI |
| 3.AA.05 | Nantokite | CuCl |
| 3.AA.05 | 'UM1999-11:I:CuS' | Cu(I,S) |
| 3.AA.05 | Miersite | (Ag,Cu)I |
| 3.AA.10 | Tocornalite | (Ag,Hg)I (?) |
| 3.AA.10 | Iodargyrite | AgI |
| 3.AA.15 | Bromargyrite | AgBr |
| 3.AA.15 | Chlorargyrite | AgCl |
| 3.AA.20 | Sylvite | KCl |
| 3.AA.20 | Halite | NaCl |
| 3.AA.20 | Villiaumite | NaF |
| 3.AA.20 | Carobbiite | KF |
| 3.AA.20 | Griceite | LiF |
| 3.AA.25 | 'UM1998-03-Cl:Tl' | TlCl |
| 3.AA.25 | Nataliyamalikite | TlI |
| 3.AA.25 | Lafossaite | Tl(Cl,Br) |
| 3.AA.25 | Salammoniac | NH4Cl |
| 3.AA.30 | Calomel | [Hg2]2+Cl2 |
| 3.AA.30 | Moschelite | [Hg2]2+I2 |
| 3.AA.30 | Kuzminite | [Hg2]2+(Br,Cl)2 |
| 3.AA.35 | Parascandolaite | KMgF3 |
| 3.AA.40 | Javorieite | KFeCl3 |
| 3.AA.40 | Chlorocalcite | KCaCl3 |
| 3.AA.45 | Kolarite | PbTeCl2 |
| 3.AA.50 | Radhakrishnaite | PbTe3(Cl,S)2 |
| 3.AA.55 | Challacolloite | KPb2Cl5 |
| 3.AA.60 | Hephaistosite | TlPb2Cl5 |
| 3.AA.90 | Pseudocotunnite | K2PbCl4 |
Other Information
Notes:
Insoluble in H2O. Slowly soluble in HCl or HNO3 and more rapidly in H2SO4.
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 Neighborite
mindat.org URL:
https://www.mindat.org/min-2871.html
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References for Neighborite
Reference List:
Chao, E. C. T., Evans, H. T., Skinner, B. J., Milton, C. (1961) Neighborite, NaMgF3, a new mineral from the Green River Formation, South Ouray, Utah. American Mineralogist, 46 (3-4) 379-393
Fleischer, Michael; Foster, Margaret D. (1962) New mineral names. American Mineralogist, 47 (5-6). 805-812
IMA (1967) International Mineralogical Association: Commission on New Minerals and Mineral Names. Mineralogical Magazine and Journal of the Mineralogical Society, 36 (277) 131-136 doi:10.1180/minmag.1967.036.277.20
Lewis, M. H., Bright, M. W. A. (1971) Transformation twinning in synthetic neighborite. American Mineralogist, 56 (9-10) 1519-1526
Pischedda, Vittoria, Ferraris, Giovanni, Raade, Gunnar (2005) Single-crystal X-ray diffraction study on neighborite (NaMgF3) from Gjerdingselva, Norway. Neues Jahrbuch für Mineralogie - Abhandlungen, 182 (1) 23-29 doi:10.1127/0077-7757/2005/0028
Piilonen, P. C.; Rowe, R.; Ercit, T.S.; Locock, A.J. (2006) New Mineral Names. American Mineralogist, 91 (8). 1452-1457 doi:10.2138/am.2006.470
Mitchell, Roger H., Alexander, Malcolm, Cranswick, Lachlan M. D., Swainson, Ian P. (2007) A powder neutron diffraction study of the crystal structure of the fluoroperovskite NaMgF3 (neighborite) from 300 to 3.6 K. Physics and Chemistry of Minerals, 34 (10) 705-712 doi:10.1007/s00269-007-0188-0
Knight, K. S. (2014) A high-resolution powder neutron diffraction study of the crystal structure of neighborite (NaMgF3) between 9 and 440 K. American Mineralogist, 99 (4) 824-838 doi:10.2138/am.2014.4650
Localities for Neighborite
Showing 21 localities.
symbol to view information about a locality.
The Locality List
- 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).
All localities listed without proper references should be considered as questionable.
Canada | |
| Chen et al. (2013) |
| Grice (1989) +1 other reference |
| R. Tibbit |
Norway | |
| Raade et al. (1980) |
Russia | |
| Sharygin +9 other references |
| Khomyakov (1995) +1 other reference |
| maurice.strahlen.org (2003) +1 other reference | |
| Khomyakov et al. (1982) | |
| Pekov (1998) +2 other references |
| Khomyakov et al. (1992) +1 other reference |
| |
| Khomyakov et al. (1982) | |
| Pekov (1998) | |
| Pekov (1998) | |
| Starikova et al. (2017) | |
| P.M. Karashov data +2 other references |
Tanzania | |
| Mitchell (1997) +2 other references |
USA | |
| Tank (1972) +2 other references | |
| Smith et al. (1972) |
| Chao et al. (1961) |
| Milton (1977) |
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Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada