Nastrophite Mineral Data + 
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- 40.1.3.1 Nastrophite Na(Sr,Ba)(PO4)·9(H2O) P 213 2 3
- 40.1.3.2 Nabaphite NaBaPO4·9(H2O) P 213 2 3
- VII/C.28-10 Nastrophite Na(Sr,Ba)(PO4)·9(H2O) P 213 2 3
- VII/C.28-20 Nabaphite NaBaPO4·9(H2O) P 213 2 3
General Nastrophite Information |
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 Chemical Formula: |
Na(Sr,Ba)(PO4)·9(H2O) | ||
| Composition: |
Molecular Weight = 380.15 gm | ||
| Barium 9.03 % Ba 10.08 % BaO | |||
| Sodium 6.05 % Na 8.15 % Na2O | |||
| Strontium 17.29 % Sr 20.44 % SrO | |||
| Phosphorus 8.15 % P 18.67 % P2O5 | |||
| Hydrogen 4.77 % H 42.65 % H2O | |||
| Oxygen 54.71 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Empirical Formula: |
NaSr0.75Ba0.25(PO4)·9(H2O) | ||
| IMA Status: |
Approved IMA 1981 | ||
| Locality: |
Link to MinDat.org Location Data. | ||
| Synonym: |
ICSD 20268 | ||
| PDF 25-993 | |||
Nastrophite Image | |||
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Images:
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Nastrophite Crystallography |
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| Cell Dimensions: |
a = 10.559, Z = 4; V = 1,177.25 Den(Calc)= 2.14 | ||
| Crystal System: |
Isometric - TetartoidalH-M Symbol (2 3) Space Group: P 213 | ||
| X Ray Diffraction: |
By Intensity(I/Io): 2.54(1), 4.67(0.9), 5.21(0.8), | ||
Physical Properties of Nastrophite |
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| Cleavage: |
None | ||
| Color: |
Colorless. | ||
| Density: |
2.05 | ||
| Diaphaniety: |
Transparent | ||
| Fracture: |
Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz). | ||
| Hardness: |
2 - Gypsum | ||
| Luster: |
Vitreous (Glassy) | ||
| Streak: |
white | ||
Optical Properties of Nastrophite |
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| Gladstone-Dale: |
CI meas= -0.028 (Excellent) - where the CI = (1-KPDmeas/KC) CI calc= 0.015 (Superior) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2336,KPDmeas= 0.2439,KC= 0.2372 |
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| Optical Data: |
Isotropic, n=1.5. | ||
Calculated Properties of Nastrophite |
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| Electron Density: |
relectron=2.14 gm/cc |
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| Fermion Index |
Fermion Index = 0.02846 Boson Index = 0.97154 |
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| Photoelectric: |
PENastrophite = 54.98 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Nastrophite is Not Radioactive |
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Nastrophite Classification |
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| Dana Class: |
40.1.3.1 (40)Hydrated Phosphates, etc | ||
| (40.1)where A++ B++ (XO4) · x(H2O) | |||
| (40.1.3)Dana Group | |||
| Strunz Class: |
VII/C.28-10 VII - Phosphates, Arsenates and Vanadates | ||
| VII/C - Water-bearing phosphates without unfamiliar anions, cations of medium and big size: Fe, Mn, Zn, Mg and Ca, (NH4)1+ | |||
| VII/C.28 - Nastrophite - Nabaphite series | |||
Other Nastrophite Information |
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| References: |
PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) | ||
| See Also: |
Links to other databases for Nastrophite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 - WWW-MINCRYST 13 -École des Mines de Paris Search for Nastrophite using: Visit our Advertisers for Nastrophite : Translate Nastrophite Mineral Data : Ask about Nastrophite here : Print or Cut-and-Paste your Nastrophite Specimen Label here :
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