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Natrophosphate

A valid IMA mineral species

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Photos of Natrophosphate (7)

Natrophosphate Gallery Search Photos of Natrophosphate

Edit Add Synonym Edit CIF structures Clear Cache

Natrophosphate

Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada

Natrophosphate

Rasvumchorr Mt, Khibiny Massif, Murmansk Oblast, Russia

Natrophosphate

Koashva Open Pit, Koashva Mt, Khibiny Massif, Murmansk Oblast, Russia

Natrophosphate

Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada

Natrophosphate

Rasvumchorr Mt, Khibiny Massif, Murmansk Oblast, Russia

Natrophosphate

Koashva Open Pit, Koashva Mt, Khibiny Massif, Murmansk Oblast, Russia

Natrophosphate

Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada

Natrophosphate

Rasvumchorr Mt, Khibiny Massif, Murmansk Oblast, Russia

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About NatrophosphateHide

Formula:

Na_6+xH_xF(PO₄)₂ · (19+x)H₂O

formerly given as Na₇(PO₄)₂F·19H₂O

Colour:

White

Lustre:

Vitreous

Hardness:

2½

Specific Gravity:

1.71 - 1.72

Crystal System:

Isometric

Name:

Named for the composition that includes NATRium (Latin for sodium) and phosphate.

Type Locality:

ⓘ Material'naya Adit, Yukspor Mt, Khibiny Massif, Murmansk Oblast, Russia

A rare sodium phosphate hydrate mineral. Formerly thought to be chemically variable which would explain variations in its solubility.

Suggested to partially decomposes to a white powder on exposure to air; the powder likely bears H_x(PO₄)_3-x. Dissolves in water.

However, recently, both the sodium site occupancy and phosphate speciation were shown to be unrelated to changes in NaF and Na₃PO₄ concentration.

Very complex structure, based on super-octahedral [Na₆(H₂O)₁₈F]⁵⁺ polycationic complex comprising six edge-linked Na₆(OH₂)₅F octahedra.

Unique IdentifiersHide

Mindat ID:

2862

Long-form identifier:

mindat:1:1:2862:8

GUID
(UUID V4):

05b002f0-097e-4986-8ec8-479169249d4a

Classification of NatrophosphateHide

IMA status:

Approved

First published:

1972

Type description reference:

Kapustin, Y.L., Bykova, A.V., Bukin, V.I. (1972) Natrophosphate, a new mineral. Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva: 101(1): 80-86.

Strunz-mindat (2023):

8.DN.05

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

Dana 8th ed.:

42.13.9.1

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

Hey's CIM Ref.:

22.1.3

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

Mineral SymbolsHide

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

Symbol	Source	Reference
Nap	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 NatrophosphateHide

Lustre:

Vitreous

Colour:

White

Streak:

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:

Na_6+xH_xF(PO₄)₂ · (19+x)H₂O

formerly given as Na₇(PO₄)₂F·19H₂O

IMA Formula:

Na₇(PO₄)₂F · 19H₂O

Elements listed:

F, H, Na, O, P - search for minerals with similar chemistry

Crystallography of NatrophosphateHide

Crystal System:

Isometric

Class (H-M):

m3m (4/m 3 2/m) - Hexoctahedral

Space Group:

Fd3c

Cell Parameters:

a = 27.6241(2) Å

Unit Cell V:

21,079.70 Å³ (Calculated from Unit Cell)

Morphology:

Rare as octahedra, dodecahedra, or tetrahedra, typically rounded and up to 1 cm in size; also in monomineralic aggregates and veinlets.

Comment:

new unit cell parameters from Avdontceva et al. (2021); range observed in previous research: a = 27.79–27.93 A; data for synthetic counterparts: a=28.1150 (RT), a=27.9777 (T=100K)

Crystal StructureHide

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Unit Cell | Unit Cell Packed
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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)
0009515	Natrophosphate	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		1974	synthetic	0	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Natrophosphate'
loop_
_publ_author_name
'Baur W H'
'Tillmanns E'
_journal_name_full 'Acta Crystallographica, Section B'
_journal_volume 30 
_journal_year 1974
_journal_page_first 2218
_journal_page_last 2224
_publ_section_title
;
 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
 Note: not all H were located
;
_database_code_amcsd 0009515
_chemical_compound_source 'Synthetic'
_chemical_formula_sum 'Na7 P2 O27 F H26'
_cell_length_a 27.7550
_cell_length_b 27.7550
_cell_length_c 27.7550
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 21380.785
_exptl_crystal_density_diffrn      1.740
_symmetry_space_group_name_H-M 'F d 3 c'
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loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_U_iso_or_equiv
Na   0.48768   0.08448   0.01325   1.00000 ?
NaA   0.20173   0.20173   0.20173   0.50000 ?
P1   0.12500   0.12500   0.12500   1.00000 ?
P2   0.87500   0.12500   0.12500   1.00000 ?
O1   0.13886   0.07914   0.09940   0.33333 ?
O2   0.40697   0.08099   0.13524   1.00000 ?
Ow3   0.07205   0.00249   0.09648   1.00000 ?
Ow4   0.40311   0.07079   0.01069   1.00000 ?
Ow5   0.28464   0.03587   0.08242   1.00000 ?
F   0.00000   0.00000   0.00000   1.00000 ?
WatA   0.20173   0.20173   0.20173   0.50000 ?
H31   0.09400   0.02300   0.11200   1.00000   0.03926
H32   0.27500   0.13600   0.08400   1.00000   0.03926
H42a   0.38200   0.08600   0.03400   0.50000   0.03673
H42b   0.41800   0.01600   0.11300   0.50000   0.03673
H52   0.44500   0.16600   0.06000   1.00000   0.06586
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_12
_atom_site_aniso_U_13
_atom_site_aniso_U_23
Na 0.03786 0.04176 0.03278 -0.00351 0.00117 0.00117
NaA 0.06049 0.06049 0.06049 -0.00117 -0.00117 -0.00117
P1 0.02654 0.02654 0.02654 0.00000 0.00000 0.00000
P2 0.02381 0.02381 0.01756 0.00000 0.00000 0.00000
O1 0.06830 0.04917 0.05308 0.00507 0.00741 -0.02498
O2 0.03161 0.02771 0.03395 0.00507 -0.00234 0.00234
Ow3 0.03278 0.04800 0.03668 -0.00234 -0.00624 0.00624
Ow4 0.03668 0.03668 0.03395 0.01015 -0.00351 0.00000
Ow5 0.10615 0.04293 0.04683 -0.02498 0.02264 -0.00507
F 0.03005 0.03005 0.03005 0.00117 0.00117 0.00117
WatA 0.06049 0.06049 0.06049 -0.00117 -0.00117 -0.00117

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
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)

Geological EnvironmentHide

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
Stage 4b: Highly evolved igneous rocks	>3.0
35 : Ultra-alkali and agpaitic igneous rocks

Type Occurrence of NatrophosphateHide

Type Locality:

ⓘ Material'naya Adit, Yukspor Mt, Khibiny Massif, Murmansk Oblast, Russia

General Appearance of Type Material:

monomineralic aggregates up to 5 cm

Place of Conservation of Type Material:

Vernadsky Geological Museum, Moscow, Russia, 51117.
A. E. Fersman Mineralogical Museum, Academy of Sciences, Moscow, Russia, 74383.

Associated Minerals at Type Locality:

Villiaumite

Reference:

Kapustin, Y.L., Bykova, A.V., Bukin, V.I. (1972) Natrophosphate, a new mineral. Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva: 101(1): 80-86.

Download:

http://rruff.info/rruff_1.0/uploads/ZVMO101N1_80.pdf

Synonyms of NatrophosphateHide

IMA1971-041

Other Language Names for NatrophosphateHide

German:Natrophosphat

Russian:Натрофосфат

Related Minerals - Strunz-mindat Grouping Hide

8.DN.	Loomisite	Ba[Be₂P₂O₈] · H₂O	Mon. m
8.DN.10	Isoclasite	Ca₂(PO₄)(OH) · 2H₂O	Mon.
8.DN.15	Lermontovite	U(PO₄)(OH) · H₂O	Orth. mmm (2/m 2/m 2/m) : Ccca
8.DN.15	Urphoite	U⁴⁺₆(PO₄)₇(OH)₃ · 4H₂O	Mon.
8.DN.20	Vyacheslavite	U(PO₄)(OH)	Orth. mmm (2/m 2/m 2/m) : Cmca

Fluorescence of NatrophosphateHide

In UV light:

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.

Internet Links for NatrophosphateHide

mindat.org URL:

https://www.mindat.org/min-2862.html
Please feel free to link to this page.

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External Links:

Look for Natrophosphate on Webmineral

Look for Natrophosphate on Wikipedia

Look for Natrophosphate on Mineralien Atlas

Raman and XRD data at RRUFF project

References and PDF downloads at RRUFF project

American Mineralogist Crystal Structure Database

Handbook of Mineralogy page PDF

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References for NatrophosphateHide

Reference List:

http://forum.amiminerals.it/viewtopic.php?f=5&t=16849&sid=5fa2216a14b269f59120c2726f9f11ef

http://forum.amiminerals.it/viewtopic.php?f=5&t=17960&sid=2789adc91c93c83cb280097e92d71ec0

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.

Horváth, L., Gault, R.G. (1990) The mineralogy of Mont Saint Hilaire. Mineralogical Record: 21: 284-359.

Genkina, E.A., Khomyakov, A.P. (1992) Refinement of the structure of natural natrophosphate. Soviet Physics, Crystallography: 37: 844-845.

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.

Avdontceva, M., Krivovichev, S., Yakovenchuk, V. (2021): Natrophosphate, Arctic Mineral and Nuclear Waste Phase: Structure Refinements and Chemical Variability. Minerals: 11: 186

Graham, T.R., Nienhuis, E.T., Reynolds, J.G., Marcial, J., Loring, J., Rosso, K., Pearce, C.I. (2022): Sodium Site Occupancy and Phosphate Speciation in Natrophosphate are Invariant to Changes in NaF and Na₃PO₄ Concentration. Inorganic Chemistry Frontiers: 9 (in press).

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 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.


Canada
Québec Montérégie La Vallée-du-Richelieu RCM Mont Saint-Hilaire ⓘ Poudrette quarry (De-Mix quarry; Demix quarry; Uni-Mix quarry; Carrière Mont Saint-Hilaire; MSH)	166-175. 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 HORVÁTH, L., GAULT, R.A. (1990) The mineralogy of Mont Saint-Hilaire. Mineralogical Record, 21, 281-359.

Greenland
Kujalleq ⓘ Ilímaussaq complex	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 Kvanefjeld deposit ⓘ Drill Core 49	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

Kazakhstan
West Kazakhstan Region Oral ⓘ Darinskoe meteorite ?	Sharygin, V.V. (2022) Sodium-Rich Phosphate and Silicate Inclusions in the Troilite Nodule of the Darinskoe Iron Meteorite (IIC). Geochemistry International: 67: 1216-1232.

Namibia
Khomas Region Windhoek Rural Aris ⓘ Aris Quarries	[http://www.koeln.netsurf.de/~w.steffens/aris.htm] 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

Russia
Murmansk Oblast Khibiny Massif Koashva Mt ⓘ IGC Stop 2-2	Arzamastsev, A., Yakovenchuk, V., Pakhomovsky, Y., & Ivanyuk, G. (2008). The Khibina and Lovozero alkaline massifs: Geology and unique mineralization. In Guidebook for 33rd International Geological Congress Excursion (No. 47, p. 58).
ⓘ Koashva Open Pit	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. *Pekov, Igor V. (1998) Minerals first discovered on the territory of the former Soviet Union. Ocean Pictures, Moscow. 369pp.* 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.
ⓘ Rasvumchorr Mt	*Pekov, Igor V. (1998) Minerals first discovered on the territory of the former Soviet Union. Ocean Pictures, Moscow. 369pp.*
Yukspor Mt ⓘ Material'naya Adit (TL)	Kapustin, Y.L., Bykova, A.V., Bukin, V.I. (1972) Natrophosphate, a new mineral. International Geological Review: 14: 984-989. Kapustin, Y. L., Pudovkina, Z. V., & Bykova, T. Y. (1982). Dorfmanite, a new mineral. International Geology Review, 24(1), 111-115. *Pekov, Igor V. (1998) Minerals first discovered on the territory of the former Soviet Union. Ocean Pictures, Moscow. 369pp.*
Lovozersky District ⓘ Karnasurt Mountain	Khomyakov, A.P., Bykova, A.V. (1980) Natrophosphate - the first occurrence in the Lovozzero alkalic massif. Mineralog. Zhurnal: 2(6): 88-91. Pekov, I.V. (2000): Lovozero Massif. Moscow, Ocean Pictures Ltd, 480 pp.

Natrophosphate

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