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General Schoderite Information |
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 Chemical Formula: |
Al2(PO4)(VO4)•8(H2O) | ||
| Composition: |
Molecular Weight = 408.00 gm | ||
| Aluminum 13.23 % Al 24.99 % Al2O3 | |||
| Vanadium 12.49 % V 22.29 % V2O5 | |||
| Phosphorus 7.59 % P 17.40 % P2O5 | |||
| Hydrogen 3.95 % H 35.32 % H2O | |||
| Oxygen 62.74 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Empirical Formula: |
Al2(PO4)(VO4)•8(H2O) | ||
| IMA Status: |
Approved IMA 1962 | ||
| Locality: |
Fish Creek Range, near Eureka, Nevada, USA. Link to MinDat.org Location Data. | ||
| Name Origin: |
Named for William P. Schoder (1900-1977), U. S. Chemist. | ||
| Name Pronunciation: |
Schoderite + Pronunciation  |
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Schoderite Image | |||
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Images:
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Schoderite Crystallography |
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| Axial Ratios: |
a:b:c =0.5313:1:0.4101 | ||
| Cell Dimensions: |
a = 16.26, b = 30.6, c = 12.55, Z = 18; beta = 91.77° V = 6,241.35 Den(Calc)= 1.95 | ||
| Crystal System: |
Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/m | ||
| X Ray Diffraction: |
By Intensity(I/Io): 16.33(1), 15.34(0.7), 7.64(0.35), | ||
Physical Properties of Schoderite |
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| Cleavage: |
{010} Good | ||
| Color: |
Yellow, Orange. | ||
| Density: |
1.88 | ||
| Habit: |
Microscopic Crystals - Crystals visible only with microscopes. | ||
| Habit: |
Platy - Sheet forms (e.g. micas). | ||
| Hardness: |
2 - Gypsum | ||
| Streak: |
yellow | ||
Optical Properties of Schoderite |
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| Gladstone-Dale: |
CI meas= -0.071 (Fair) - where the CI = (1-KPDmeas/KC) CI calc= -0.033 (Excellent) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2885,KPDmeas= 0.2993,KC= 0.2795 Ncalc = 1.53 - 1.54 |
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| Optical Data: |
Biaxial (-), a=1.56, b=1.563, g=1.565, bire=0.0050, 2V(Calc)=78, 2V(Meas)=43. | ||
Calculated Properties of Schoderite |
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| Electron Density: |
Bulk Density (Electron Density)=1.99 gm/cc note: Specific Gravity of Schoderite =1.95 gm/cc. |
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| Fermion Index: |
Fermion Index = 0.0006192422 Boson Index = 0.9993807578 |
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| Photoelectric: |
PESchoderite = 3.11 barns/electron U=PESchoderite x rElectron Density= 6.18 barns/cc. |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Schoderite is Not Radioactive |
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Schoderite Classification |
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| Dana Class: |
43.03.01.01 (43)Compound Phosphates, etc. | ||
| (43.03)(Hydrated Normal Compound Anions) | |||
| (43.03.01)Embreyite Group | |||
| Strunz Class: |
08.CE.70 08 - PHOSPHATES, ARSENATES, VANADATES | ||
| 08.C - Phosphates without Additional Anions, with H2O | |||
| 08.CE -With only medium-sized cations, RO4:H2O £ 1:2.5 | |||
Other Schoderite Information |
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| References: |
NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) | ||
| See Also: |
Links to other databases for Schoderite : 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 - MinDAT 10 - Mineralienatlas (Deutsch) 11 - Online Mineral Museum 12 - QUT Mineral Atlas 13 - Ruff.Info Search for Schoderite using: Visit our Advertisers for Schoderite : A Bijoux Google Search for SchoderiteAdam's Minerals Google Search for Schoderite Cape Minerals Google Search for Schoderite Dakota Matrix Minerals Google Search for Schoderite Excalibur Mineral Corp. Google Search for Schoderite Exceptional Minerals Google Search for Schoderite John Betts Fine Minerals Search for Schoderite McDougall Minerals Google Search for Schoderite Mineral News Website Link Rock and Mineral Shows Google Search for Schoderite Weinrich Minerals, Inc. Google Search for Schoderite Ask about Schoderite here : Print or Cut-and-Paste your Schoderite Specimen Label here :
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