Where it forms, where it's found
- Type locality
- Material'naya Adit
- Yukspor Mountain
- Murmansk Oblast
- Russia
67.6406°, 33.7424°
8recorded occurrences
Physical
Optical
- Optical type
- Isotropic
- UV response
- Pale orange
PPL intrinsic colour; no change on stage rotation
XPL extinct at every orientation
Crystallography
- Space group
- #221
- Cell parameters
- a = 27.6241(2) Å
- Z
- 56
- Morphology
Rare as octahedra, dodecahedra, or tetrahedra, typically rounded and up to 1 cm in size; also in monomineralic aggregates and veinlets.
- Type-locality form
monomineralic aggregates up to 5 cm
- 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 structure
Chemical composition
Synonyms
- IMA1971-041
In other languages
- German
- Natrophosphat
- Italian
- Natrofosfato · Natrophosphate
Classification
Strunz
10th ed.8.DN.05
- 8Phosphates, Arsenates, VanadatesClass
- 8.DPhosphates, etc. with additional anions, with H2ODivision
- 8.DNWith only large cationsGroup
- 8.DN.05NatrophosphateSpecies
Dana
8th ed.42.13.09.01
- 42Hydrated Phosphates, Etc.containing Hydroxyl or HalogenClass
- 42.13MiscellaneousType
- 42.13.09— unnamed intermediate level —Group
- 42.13.09.01NatrophosphateSpecies
CIM
—22.1.3
- 22Phosphates, Arsenates or Vanadates with other AnionsClass
- 22.1Phosphates, arsenates or vanadates with fluorideGroup
- 22.1.3NatrophosphateSpecies
Group, growth & confusion
Literature, links & citation
Citations
- 1972Kapustin, Y.L., Bykova, A.V., Bukin, V.I. (1972) Natrophosphate, a new mineral. Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva: 101(1): 80-86.
- 1972Kapustin, Yu.L., Bykova, A.V., Bukin, V.I. (1972) Natrophosphate, a new mineral. International Geology Review, 14 (9) 984-989 doi:10.1080/00206817209475790DOI: 10.1080/00206817209475790
- 1973Fleischer, Michael (1973) New mineral names. American Mineralogist, 58 (1-2). 139-141
- 1974Baur, 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 Section B Structural Crystallography and Crystal Chemistry, 30 (9) 2218-2224 doi:10.1107/s0567740874006777DOI: 10.1107/s0567740874006777
- 1980Khomyakov, A.P., Bykova, A.V. (1980) Natrophosphate - the first occurrence in the Lovozzero alkalic massif. Mineralog. Zhurnal: 2(6): 88-91.
Cite this entry
@misc{mineral2026,
author = {Mineral Index editorial board},
title = {Natrophosphate — Mineral Index},
year = {2026},
url = {https://mineralindex.org/minerals/natrophosphate-2862},
note = {Accessed 2026-05-11}
}