| Chernovite-(Y) Mineral Data |
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- 38.4.11.1 Xenotime-(Y) YPO4 I 41/amd 4/m 2/m 2/m
- 38.4.11.2 Chernovite-(Y) YAsO4 I 41/amd 4/m 2/m 2/m
- 38.4.11.3 Wakefieldite-(Y) YVO4 I 41/amd 4/m 2/m 2/m
- 38.4.11.4 Wakefieldite-(Ce) (Ce,Pb,Pb)VO4 I 41/amd 4/m 2/m 2/m
- 38.4.11.5 Pretulite! ScPO4 I 41/amd 4/m 2/m 2/m
- 38.4.11.6 Xenotime-(Yb)! YbPO4 I 41/amd 4/m 2/m 2/m
- VII/A.14-05 Pretulite! ScPO4 I 41/amd 4/m 2/m 2/m
- VII/A.14-08 Xenotime-(Yb)! YbPO4 I 41/amd 4/m 2/m 2/m
- VII/A.14-10 Xenotime-(Y) YPO4 I 41/amd 4/m 2/m 2/m
- VII/A.14-20 Chernovite-(Y) YAsO4 I 41/amd 4/m 2/m 2/m
- VII/A.14-25 Chernovite-(Ce)* (Ce,Y)(AsO4) I 41/amd 4/m 2/m 2/m
- VII/A.14-30 Wakefieldite-(Y) YVO4 I 41/amd 4/m 2/m 2/m
- VII/A.14-40 Wakefieldite-(Ce) (Ce,Pb,Pb)VO4 I 41/amd 4/m 2/m 2/m
General Chernovite-(Y) Information |
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 Chemical Formula: |
YAsO4 | ||
| Composition: |
Molecular Weight = 227.83 gm | ||
| Yttrium 39.02 % Y 49.56 % Y2O3 | |||
| Arsenic 32.89 % As 50.44 % As2O5 | |||
| Oxygen 28.09 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Empirical Formula: |
Y(AsO4) | ||
| IMA Status: |
Approved IMA 1987 | ||
| Locality: |
Link to MinDat.org Location Data. | ||
| Synonym: |
ICSD 24513 | ||
| PDF 13-429 | |||
Chernovite-(Y) Image | |||
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Images:
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Chernovite-(Y) Crystallography |
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| Axial Ratios: |
a:c = 1:0.89103 | ||
| Cell Dimensions: |
a = 7.039, c = 6.272, Z = 4; V = 310.76 Den(Calc)= 4.87 | ||
| Crystal System: |
Tetragonal - Ditetragonal DipyramidalH-M Symbol (4/m 2/m 2/m) Space Group: I 41/amd | ||
| X Ray Diffraction: |
By Intensity(I/Io): 1.811(1), 2.644(1), 3.519(1), | ||
Physical Properties of Chernovite-(Y) |
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| Cleavage: |
[010] Perfect | ||
| Color: |
Brown, Colorless, Light yellow. | ||
| Density: |
4.866 | ||
| Diaphaniety: |
Transparent | ||
| Fracture: |
Brittle - Generally displayed by glasses and most non-metallic minerals. | ||
| Hardness: |
4-5 - Fluorite-Apatite | ||
| Luster: |
Vitreous (Glassy) | ||
| Streak: |
white | ||
Optical Properties of Chernovite-(Y) |
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| Gladstone-Dale: |
CI meas= -0.029 (Excellent) - where the CI = (1-KPDmeas/KC) CI calc= -0.028 (Excellent) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1706,KPDmeas= 0.1708,KC= 0.166 |
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| Optical Data: |
Uniaxial (+), w=1.783, e=1.879, bire=0.0960. | ||
Calculated Properties of Chernovite-(Y) |
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| Electron Density: |
relectron=4.45 gm/cc |
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| Fermion Index |
Fermion Index = 0.00013 Boson Index = 0.99987 |
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| Photoelectric: |
PEChernovite-(Y) = 73.46 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Chernovite-(Y) is Not Radioactive |
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Chernovite-(Y) Classification |
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| Dana Class: |
38.4.11.2 (38)Anhydrous Phosphates, etc | ||
| (38.4)A+ XO4 | |||
| (38.4.11)Zenotime Group (Tetragonal: I41/amd) | |||
| Strunz Class: |
VII/A.14-20 VII - Phosphates, Arsenates and Vanadates | ||
| VII/A - Waterfree phosphates [PO4]3- without unfamiliar anions, cations of very big size: Ca, Na and andre | |||
| VII/A.14 - Xenotime-(Y) - Wakefieldite-(Ce) series | |||
Other Chernovite-(Y) 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 Chernovite-(Y) : 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 -École des Mines de Paris Search for Chernovite-(Y) using: Visit our Advertisers for Chernovite-(Y) : Translate Chernovite-(Y) Mineral Data : Ask about Chernovite-(Y) here : Print or Cut-and-Paste your Chernovite-(Y) Specimen Label here :
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