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Natrophosphate

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About NatrophosphateHide

Formula:
Na7(PO4)2F · 19H2O
Colour:
White
Lustre:
Vitreous
Hardness:
Specific Gravity:
1.71 - 1.72
Crystal System:
Isometric
Name:
Named for the composition that includes NATRium (Latin for sodium) and phosphate.
A rare sodium phosphate hydrate mineral.
Partially decomposes to a white powder on exposure to air, dissolves in H2O.


Classification of NatrophosphateHide

Approved
First Published:
1972
8.DN.05

8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
N : With only large cations
42.13.9.1

42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
13 : Miscellaneous
22.1.3

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

Physical Properties of NatrophosphateHide

Vitreous
Colour:
White
Hardness:
2½ on Mohs scale
Cleavage:
Imperfect/Fair
octahedral imperfect
Fracture:
Conchoidal
Density:
1.71 - 1.72 g/cm3 (Measured)    

Optical Data of NatrophosphateHide

Type:
Isotropic

Chemical Properties of NatrophosphateHide

Formula:
Na7(PO4)2F · 19H2O

Crystallography of NatrophosphateHide

Crystal System:
Isometric
Class (H-M):
m3m (4/m 3 2/m) - Hexoctahedral
Space Group:
Fd3c
Cell Parameters:
a = 27.79 Å
Unit Cell V:
21,461.78 ų (Calculated from Unit Cell)
Z:
56
Morphology:
Rare as octahedra, dodecahedra, or tetrahedra, typically rounded and up to 1 cm in size; also in monomineralic aggregates and veinlets.
Comment:
Range observed: a = 27.79–27.93 A.

Crystal StructureHide

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AMCSDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0009515NatrophosphateBaur W H, Tillmanns E (1974) Salt hydrates. X. The crystal structure determinations of heptasodium fluoride bisphosphate 19-hydrate and heptasodium fluoride bisarsenate 19-hydrate and the computer simulation of the isomorphous vanadate salt Acta Crystallographica B30 2218-22241974synthetic0296

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
8.18 Å(70)
4.93 Å(50)
4.06 Å(50)
3.05 Å(60)
2.90 Å(50)
2.67 Å(100)
2.42 Å(90)

Type Occurrence of NatrophosphateHide

General Appearance of Type Material:
monomineralic aggregates up to 5 cm
Place of Conservation of Type Material:
Vernadsky Geological Museum, Moscow, 51117.
A. E. Fersman Mineralogical Museum, Academy of Sciences, Moscow, Russia, 74383.
Associated Minerals at Type Locality:
Reference:
Kapustin, Y.L., Bykova, A.V., Bukin, V.I. (1972) Natrophosphate, a new mineral. Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva: 101(1): 80-86.

Synonyms of NatrophosphateHide

Other Language Names for NatrophosphateHide

Related Minerals - Nickel-Strunz GroupingHide

8.DN.10IsoclasiteCa2(PO4)(OH) · 2H2OMon.
8.DN.15LermontoviteU(PO4)(OH) · H2OOrth. mmm (2/m 2/m 2/m) : Ccca
8.DN.15UrphoiteU4+6(PO4)7(OH)3 · 4H2OMon.
8.DN.20VyacheslaviteU(PO4)(OH)Orth. mmm (2/m 2/m 2/m) : Cmca

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
22.1.5NacaphiteNa2Ca(PO4)FMon. 2/m : P21/b
22.1.6ArctiteNa2Ca4(PO4)3FTrig. 3m (3 2/m) : R3m
22.1.7NefedoviteNa5Ca4(PO4)4FTric.
22.1.9FluorapatiteCa5(PO4)3FHex. 6/m : P63/m
22.1.10HerderiteCaBe(PO4)FMon. 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. 2/m : P2/m
22.1.22Wagnerite(Mg,Fe2+)2(PO4)FMon. 2/m : P21/b
22.1.23TripliteMn2+2(PO4)FMon. 2/m
22.1.24Magniotriplite(Mg,Fe2+,Mn2+)2PO4FMon.
22.1.25ZwieseliteFe2+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

Fluorescence of NatrophosphateHide

Pale orange

Other InformationHide

Notes:
Partially decomposes to a white powder on exposure to air, dissolves in H2O.
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 NatrophosphateHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Kapustin, Y.L., Bykova, A.V., Bukin, V.I. (1972) Natrophosphate, a new mineral. International Geological Review: 14: 984-989.
Kapustin, Y.L., Bykova, A.V., Bukin, V.I. (1972) Natrophosphate, a new mineral. Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva: 101(1): 80-86.
Fleischer, M. (1973) New mineral names. American Mineralogist: 58: 139-141.
Baur, W.H., Tillmanns, E. (1974) Salt hydrates. X. The crystal structure determinations of heptasodium fluoride bisphosphate 19-hydrate and heptasodium fluoride bisarsenate 19-hydrate and the computer simulation of the isomorphous vanadate salt. Acta Crystallographica: B30: 2218-2224.
Khomyakov, A.P., Bykova, A.V. (1980) Natrophosphate - the first occurrence in the Lovozzero alkalic massif. Mineralog. Zhurnal: 2(6): 88-91.
Fleischer, M, Chao, G.Y., Francis, C.A. (1981) New mineral names. American Mineralogist: 66: 878-879.
Holdaway, M.J. (1981) Errata. American Mineralogist: 66: 1281-1281.
Genkina, E.A., Khomyakov, A.P. (1992) Refinement of the structure of natural natrophosphate. Soviet Physics, Crystallography: 37: 844-845.
Horváth, L., Gault, R.G. (1990) The mineralogy of Mont Saint Hilaire. Mineralogical Record: 21: 284-359.
Petersen, O.V., Fockenberg, T., Toft, P.C., Rattay, M. (1997) Natrophosphate from the Aris phonolites, Windhoek, Namibia. Neues Jahrbuch für Mineralogie, Monathefte: 1997: 511-517.
Petersen, O., Khomyakov, A., Sørensen, H. (2001) Natrophosphate from the Ilimaussaq alkaline complex, South Greenland, Geology of Greenland Survey Bulletin: 190: 139-141.

Internet Links for NatrophosphateHide

Localities for NatrophosphateHide

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.
Canada
 
  • Québec
    • Montérégie
      • La Vallée-du-Richelieu RCM
        • Mont Saint-Hilaire
GRICE, J.D. (1989) Mont Saint-Hilaire, Quebec: Canada's Most Diverse Mineral Locality. In: Famous mineral localities of Canada. Published by Fitzhenry & Whiteside Limited & the National Museum of Natural Sciences, 190 pages: 100-108; 166-175.; HORVÁTH, L., GAULT, R.A. (1990) The mineralogy of Mont Saint-Hilaire. Mineralogical Record, 21, 281-359.
Greenland
 
  • Kujalleq
    • Narsaq
Petersen, O.V. (2001): List of all minerals identified in the Ilímaussaq alkaline complex, South Greenland. Geology of Greenland Survey Bulletin. 190, 25-33
        • Kvanefjeld (Kuannersuit Plateau)
          • Kvanefjeld Uranium deposit
Petersen, O., Khomyakov, A., Soerensen, H. (2001): Natrophosphate from the Ilimaussaq alkaline complex South Greenland, South Greenland, Geology of Greenland Survey Bulletin, 190, 139-141
Namibia
 
  • Khomas Region
    • Windhoek Rural
      • Aris
Petersen, O.V., Fockenberg, T., Toft, P.C. & Rattay, M. (1997): Natrophosphate from the Aris phonolites, Windhoek, Namibia. Neues Jahrbuch für Mineralogie, Monatshefte 1997, 511-517; [http://www.koeln.netsurf.de/~w.steffens/aris.htm]
Russia
 
  • Murmansk Oblast
    • Khibiny Massif
      • Koashva Mt
Arzamastsev, A., Yakovenchuk, V., Pakhomovsky, Y., & Ivanyuk, G. (2008). The Khibina and Lovozero alkaline massifs: Geology and unique mineralization. In Guidbook for 33rd International Geological Congress Excursion (No. 47, p. 58).
Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow; 33 IGC excursion No 47, July 22 – August 2, 2008 Stop 2-2; Kapustin, Y. L., Pudovkina, Z. V., Bykova, A. V., & Lyubomilova, G. V. (1975). Koashvite, a new mineral. International Geology Review, 17(6), 654-660.; Khomyakov, A. P., Nechelyustov, G. N., Sokolova, E., Bonaccorsi, E., Merlino, S., & Pasero, M. (2002). Megakalsilite, a new polymorph of KAlSiO4 from the Khibina alkaline massif, Kola peninsula, Russia: Mineral description and crystal structure. The Canadian Mineralogist, 40(3), 961-970.
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; Kapustin, Y. L., Pudovkina, Z. V., & Bykova, T. Y. (1982). Dorfmanite, a new mineral. International Geology Review, 24(1), 111-115.
    • Lovozersky District
Pekov, I.V. (2000): Lovozero Massif. Moscow, Ocean Pictures Ltd, 480 pp.
 
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