Buchwaldite Mineral Data + 
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- 38.1.2.1 Maricite NaFePO4 Pmnb 2/m 2/m 2/m
- 38.1.2.2 Buchwaldite NaCaPO4 P mn21 mm2
- VII/A.03-10 Nahpoite Na2HPO4 P 21/m,P 21 Mono
- VII/A.03-20 Olympite LiNa5(PO4)2 P 212121 2 2 2
- VII/A.03-30 Buchwaldite NaCaPO4 P mn21 mm2
General Buchwaldite Information |
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 Chemical Formula: |
NaCaPO4 | ||
| Composition: |
Molecular Weight = 158.04 gm | ||
| Sodium 14.55 % Na 19.61 % Na2O | |||
| Calcium 25.36 % Ca 35.48 % CaO | |||
| Phosphorus 19.60 % P 44.91 % P2O5 | |||
| Oxygen 40.49 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Empirical Formula: |
NaCa(PO4) | ||
| Environment: |
As inclusions in troilite nodules in an iron meteorite. | ||
| IMA Status: |
Approved IMA 1977 | ||
| Locality: |
In the Agpalilik and other fragments of the Cape York iron meteorite. Link to MinDat.org Location Data. | ||
| Name Origin: |
To honor Dr. Vagn Fabius Buchwald (1929- ), Technical University of Denmark, Lyngby, Denmark, for his contributions to the study of iron meteorites. | ||
| Synonym: |
ICSD 35629 ? | ||
| PDF 29-1194 | |||
Search for Buchwaldite Images | |||
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Images:
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Buchwaldite Crystallography |
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| Axial Ratios: |
a:b:c =0.558:1:0.7276 | ||
| Cell Dimensions: |
a = 5.167, b = 9.259, c = 6.737, Z = 4; V = 322.31 Den(Calc)= 3.26 | ||
| Crystal System: |
Orthorhombic - PyramidalH-M Symbol (mm2) Space Group: P mn21 | ||
| X Ray Diffraction: |
By Intensity(I/Io): 2.72(1), 3.79(0.9), 1.91(0.8), | ||
Physical Properties of Buchwaldite |
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| Color: |
White. | ||
| Density: |
3.21 | ||
| Hardness: |
2-3 - Gypsum-Calcite | ||
| Streak: |
white | ||
Optical Properties of Buchwaldite |
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| Gladstone-Dale: |
CI meas= 0.019 (Superior) - where the CI = (1-KPDmeas/KC) CI calc= 0.034 (Excellent) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1874,KPDmeas= 0.1903,KC= 0.194 |
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| Optical Data: |
Biaxial (-), a=1.607, b=1.61, g=1.616, bire=0.0090, 2V(Calc)=72, 2V(Meas)=65. | ||
Calculated Properties of Buchwaldite |
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| Electron Density: |
relectron=3.17 gm/cc |
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| Fermion Index |
Fermion Index = 0.00053 Boson Index = 0.99947 |
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| Photoelectric: |
PEBuchwaldite = 4.30 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Buchwaldite is Not Radioactive |
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Buchwaldite Classification |
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| Dana Class: |
38.1.2.2 (38)Anhydrous Phosphates, etc | ||
| (38.1)A+ B++ XO4 | |||
| (38.1.2)Dana Group | |||
| Strunz Class: |
VII/A.03-30 VII - Phosphates, Arsenates and Vanadates | ||
| VII/A - Waterfree phosphates [PO4]3- without unfamiliar anions. cations of medium size: Mostly Fe, Mn | |||
| VII/A.03 - Nahpoite series | |||
Other Buchwaldite Information |
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| 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 Buchwaldite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 - Crocoite.com Mineral Locations 4 - EUROmin Project 5 -Google Images 6 -Google Scholar 7 -Handbook of Mineralogy (UofA) 8 -MinDAT 9 -MinMax(Deutsch) 10 -MinMax(English) 11 -Mineralienatlas (Deutsch) 12 -QUT Mineral Atlas 13 -École des Mines de Paris Search for Buchwaldite using: Visit our Advertisers for Buchwaldite : Translate Buchwaldite Mineral Data : Ask about Buchwaldite here : Print or Cut-and-Paste your Buchwaldite Specimen Label here :
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