General Nastrophite Information Chemical Formula: |
Na(Sr,Ba)(PO4)•9(H2O) |
Composition: |
Molecular Weight = 380.15 gm |
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Barium 9.03 % Ba 10.08 % BaO |
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Sodium 6.05 % Na 8.15 % Na2O |
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Strontium 17.29 % Sr 20.44 % SrO |
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Phosphorus 8.15 % P 18.67 % P2O5 |
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Hydrogen 4.77 % H 42.65 % H2O |
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Oxygen 54.71 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
Empirical Formula: |
NaSr0.75Ba0.25(PO4)•9(H2O) |
Environment: |
Pegmatitic veinlets in cancrinite and nepheline syenites. |
IMA Status: |
Approved IMA 1981 |
Locality: |
Mts. Karnasurt and Alluaiv, Lovozero massif, Kola Peninsula, Russia. Link to MinDat.org Location Data. |
Name Origin: |
Named for the sodium, NAtrium, STROntium, and PHosphorus in the composition |
Name Pronunciation: |
Nastrophite + Pronunciation |
Synonym: |
ICSD 20268 |
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PDF 25-993 |
| | Nastrophite Image
Images:
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Nastrophite Crystallography 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), |
Crystal Structure:
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Mouse
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| Physical Properties of Nastrophite Cleavage: |
None |
Color: |
Colorless. |
Density: |
2.05 |
Diaphaneity: |
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 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 Ncalc = 1.49 - 1.51 Optical Data: |
Isotropic, n=1.5. |
| Calculated Properties of Nastrophite Electron Density: |
Bulk Density (Electron Density)=2.14 gm/cc |
note: Specific Gravity of Nastrophite =2.14 gm/cc. Fermion Index: |
Fermion Index = 0.02 |
Boson Index = 0.98 Photoelectric: |
PENastrophite = 54.98 barns/electron |
U=PENastrophite x rElectron Density= 117.91 barns/cc. Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Nastrophite is Not Radioactive | Nastrophite Classification Dana Class: |
40.01.03.01 (40)Hydrated Phosphates, etc |
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(40.01)where A++ B++ (XO4) · x(H2O) |
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(40.01.03)Dana Group |
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Strunz Class: |
08.CJ.15 08 - PHOSPHATES, ARSENATES, VANADATES |
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08.C - Phosphates without Additional Anions, with H2O |
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08.CJ -With only large cations |
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| Other Nastrophite 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 Nastrophite : |
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 Search for Nastrophite using: Visit our Advertisers for Nastrophite : A Bijoux Google Search for NastrophiteAdam's Minerals Google Search for Nastrophite Cape Minerals Google Search for Nastrophite Dakota Matrix Minerals Google Search for Nastrophite Excalibur Mineral Corp. Google Search for Nastrophite Exceptional Minerals Google Search for Nastrophite John Betts Fine Minerals Search for Nastrophite McDougall Minerals Google Search for Nastrophite Mineral News Website Link Rock and Mineral Shows Google Search for Nastrophite Weinrich Minerals, Inc. Google Search for Nastrophite Ask about Nastrophite here : Print or Cut-and-Paste your Nastrophite Specimen Label here :
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