Nabaphite Mineral Data

General Nabaphite Information

Chemical Formula:

NaBaPO4•9(H2O)

Composition:

Molecular Weight = 417.43 gm

Barium 32.90 % Ba 36.73 % BaO

Sodium 5.51 % Na 7.42 % Na₂O

Phosphorus 7.42 % P 17.00 % P₂O₅

Hydrogen 4.35 % H 38.84 % H₂O

Oxygen 49.83 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

NaBa(PO₄)•9(H₂O)

Environment:

Late-stage hydrothermal mineral in cavities in ijolite-urtite pegmatite in a differentiated alkalic massif.

IMA Status:

Approved IMA 1982

Locality:

Mt. Yukspor, Khibiny massif, Kola Peninsula, Russia. Link to MinDat.org Location Data.

Name Origin:

Named for the sodium, Natrium, Barium, and Phosphorus in the composition.

Name Pronunciation:

Nabaphite + Pronunciation

Synonym:

ICSD 410328

Nabaphite Image

Images:

Nabaphite

Comments: Translucent tetrahedral nabaphite microcrystal.
Location: Mount Kukisvumchorr, Khibiny Massif, Kola Peninsula, Murmansk District, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Nabaphite Crystallography

Cell Dimensions:

a = 10.711, Z = 4; V = 1,228.83 Den(Calc)= 2.26

Crystal System:

Isometric - TetartoidalH-M Symbol (2 3) Space Group: P 2₁3

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 2.598(1), 2.866(0.9), 5.36(0.8),

Crystal Structure:

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Baturin S V , Malinovskii Y A , Belov N V , Doklady Akademii Nauk SSSR , 266 (1982) p.624-627, The crystal structure of nabaphite NaBa[PO4]*9H2O

Physical Properties of Nabaphite

Cleavage:

{100} Distinct

Color:

Colorless.

Density:

2.3

Diaphaneity:

Transparent

Fracture:

Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz).

Hardness:

2 - Gypsum

Luster:

Vitreous - Dull

Streak:

white

Optical Properties of Nabaphite

Gladstone-Dale:

CI meas= 0.023 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.006 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.223,KPDmeas= 0.2191,KC= 0.2243
Ncalc = 1.51 - 1.52

Optical Data:

Isotropic, n=1.504.

Calculated Properties of Nabaphite

Electron Density:

Bulk Density (Electron Density)=2.21 gm/cc
note: Specific Gravity of Nabaphite =2.26 gm/cc.

Fermion Index:

Fermion Index = 0.05
Boson Index = 0.95

Photoelectric:

PE_Nabaphite= 135.51 barns/electron
U=PE_Nabaphite x rElectron Density= 299.33 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Nabaphite is Not Radioactive

Nabaphite Classification

Dana Class:

40.01.03.02 (40)Hydrated Phosphates, etc

(40.01)where A++ B++ (XO4) · x(H2O)

(40.01.03)Dana Group

40.01.03.01 Nastrophite Na(Sr,Ba)(PO4)•9(H2O) P 2₁3 2 3

40.01.03.02 Nabaphite NaBaPO4•9(H2O) P 2₁3 2 3

Strunz Class:

08.CJ.15 08 - PHOSPHATES, ARSENATES, VANADATES

08.C - Phosphates without Additional Anions, with H2O

08.CJ -With only large cations

08.CJ.15 Nastrophite Na(Sr,Ba)(PO4)•9(H2O) P 2₁3 2 3

08.CJ.15 Nabaphite NaBaPO4•9(H2O) P 2₁3 2 3

Other Nabaphite Information

References:

NAME( AntBidBlaNic4) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Nabaphite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - WWW-MINCRYST

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Print or Cut-and-Paste your Nabaphite Specimen Label here :

Nabaphite

NaBaPO4•9(H2O)
Dana No: 40.01.03.02 Strunz No: 08.CJ.15
Locality:

Notes: