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Paraniite-(Y) Mineral Data
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General Paraniite-(Y) Information
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 Chemical Formula: |
Ca2Y(AsO4)(WO4)2 |
| Composition: |
Molecular Weight = 803.68 gm |
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Calcium 9.97 % Ca 13.96 % CaO |
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Yttrium 11.06 % Y 14.05 % Y2O3 |
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Arsenic 9.32 % As 14.30 % As2O5 |
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Tungsten 45.75 % W 57.70 % WO3 |
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Oxygen 23.89 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Ca2Y(AsO4)(WO4)2 |
| Environment: |
Found in a fissure in gneiss in an area anomalously high in arsenic. |
| IMA Status: |
Approved IMA 1992 |
| Locality: |
On the east flank of Pizzo Cervandone, Alpe Devero, Valle d�Ossola, Piedmont, Italy Link to MinDat.org Location Data. |
| Name Origin: |
Named for Fausto Parani, amateur mineral collector of Montecrestese, Italy, who found the mineral. |
| Name Pronunciation: |
Paraniite-(Y) + Pronunciation  |
| Synonym: |
IMA1992-018 |
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Paraniite-(Y) Crystallography
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| Axial Ratios: |
a:c = 1:6.59824 |
| Cell Dimensions: |
a = 5.135, c = 33.882, Z = 4; V = 893.41 Den(Calc)= 5.97 |
| Crystal System: |
Tetragonal - Dipyramidal H-M Symbol (4/m) Space Group: I 41/a |
| X Ray Diffraction: |
By Intensity(I/Io): 3.054(1), 1.56(0.32), 1.899(0.32), |
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Physical Properties of Paraniite-(Y)
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| Color: |
Yellow. |
| Diaphaneity: |
Translucent |
| Luster: |
Vitreous (Glassy) |
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Optical Properties of Paraniite-(Y)
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| Gladstone-Dale: |
CI calc= 0.143 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1499,KC= 0.175
Ncalc = 2.04 |
| Optical Data: |
Uniaxial (+), w=1.87, e=1.92, bire=0.0500. |
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Calculated Properties of Paraniite-(Y)
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| Electron Density: |
Bulk Density (Electron Density)=5.29 gm/cc
note: Specific Gravity of Paraniite-(Y) =5.97 gm/cc.
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| Fermion Index: |
Fermion Index = 0.06
Boson Index = 0.94 |
| Photoelectric: |
PEParaniite-(Y) = 580.07 barns/electron
U=PEParaniite-(Y) x rElectron Density=3,067.96 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Paraniite-(Y) is Not Radioactive |
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Paraniite-(Y) Classification
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| Dana Class: |
49.04.07.01 (49)Basic and Hydrated Molybdates and Tungstates |
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(49.04)(Compound Anions) |
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(49.04.07)Dana Group |
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49.04.07.01 Paraniite-(Y) Ca2Y(AsO4)(WO4)2 I 41/a 4/m |
| Strunz Class: |
07.GA.15 07 - SULFATES (SELENATES, TELLURATES) |
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07.G - Molybdates, Wolframates and Niobates |
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07.GA -Without additional anions or H2O |
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07.GA.15 Paraniite-(Y) Ca2Y(AsO4)(WO4)2 I 41/a 4/m |
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Other Paraniite-(Y) Information
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| References: |
NAME( AntBidBlaNic4) PHYS. PROP.(Am.Min.,Vol.80,p631,1995) OPTIC PROP.(Am.Min.,Vol.80,p631,1995) |
| See Also: |
Links to other databases for Paraniite-(Y) :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - GeoScienceWorld
5 - Google Images
6 - Google Scholar
7 - Handbook of Mineralogy (UofA)
8 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info
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Print or Cut-and-Paste your Paraniite-(Y) Specimen Label here :
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Paraniite-(Y)
Ca2Y(AsO4)(WO4)2
Dana No: 49.04.07.01 Strunz No: 07.GA.15
Locality:
Notes:
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