Rynersonite Mineral Data + 
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- 8.3.7.1 Vigezzite (Ca,Ce)(Nb,Ta,Ti)2O6 Pmnb 2/m 2/m 2/m
- 8.3.7.2 Rynersonite Ca(Ta,Nb)2O6 Pmnb 2/m 2/m 2/m
- IV/D.21-10 Aeschynite-(Y) (Y,Ca,Fe)(Ti,Nb)2(O,OH)6 Pbnm 2/m 2/m 2/m
- IV/D.21-20 Aeschynite-(Ce) (Ce,Ca,Fe)(Ti,Nb)2(O,OH)6 Pmnb 2/m 2/m 2/m
- IV/D.21-30 Aeschynite-(Nd) (Nd,Ce)(Ti,Nb)2(O,OH)6 Pmnb ? 2/m 2/m 2/m
- IV/D.21-40 Vigezzite (Ca,Ce)(Nb,Ta,Ti)2O6 Pmnb 2/m 2/m 2/m
- IV/D.21-50 Niobo-aeschynite-(Ce) (Ce,Ca)(Nb,Ti)2(O,OH)6 Pbnm 2/m 2/m 2/m
- IV/D.21-60 Niobo-aeschynite-(Nd)! (Nd,Ce)(Nb,Ti)2(O,OH)6 Pbnm 2/m 2/m 2/m
- IV/D.21-70 Rynersonite Ca(Ta,Nb)2O6 Pmnb 2/m 2/m 2/m
- IV/D.21-80 Tantalaeschynite-(Y) (Y,Ce,Ca)(Ta,Ti,Nb)2O6 Pbnm 2/m 2/m 2/m
General Rynersonite Information |
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 Chemical Formula: |
Ca(Ta,Nb)2O6 | ||
| Composition: |
Molecular Weight = 453.95 gm | ||
| Calcium 8.83 % Ca 12.35 % CaO | |||
| Tantalum 59.79 % Ta 73.01 % Ta2O5 | |||
| Niobium 10.23 % Nb 14.64 % Nb2O5 | |||
| Oxygen 21.15 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Empirical Formula: |
CaTa1.5Nb0.5O6 | ||
| Environment: |
Granitic pegmatites. | ||
| IMA Status: |
Approved IMA 1978 | ||
| Locality: |
San Diego mine, Mesa Grande, San Diego Co., California. Link to MinDat.org Location Data. | ||
| Synonym: |
ICSD 24091 | ||
| PDF 39-1430 | |||
Rynersonite Image | |||
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Images:
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Images:
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Rynersonite Crystallography |
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| Axial Ratios: |
a:b:c =0.6783:1:0.4854 | ||
| Cell Dimensions: |
a = 7.505, b = 11.063, c = 5.37, Z = 4; V = 445.86 Den(Calc)= 6.76 | ||
| Crystal System: |
Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: Pmnb | ||
| X Ray Diffraction: |
By Intensity(I/Io): 3.038(1), 2.964(0.91), 4.835(0.91), | ||
Physical Properties of Rynersonite |
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| Cleavage: |
None | ||
| Color: |
Beige white, Pink. | ||
| Density: |
6.402 | ||
| Diaphaniety: |
Opaque | ||
| Fracture: |
Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern. | ||
| Hardness: |
4.5 - Between Fluorite and Apatite | ||
| Luster: |
Sub Metallic | ||
| Streak: |
white | ||
Optical Properties of Rynersonite |
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| Optical Data: |
NCalc= 2.19 - from Gladstone-Dale relationship (KC = 0.1754) where Ncalc=Dcalc*KC+1 NCalc= 2.12 - from Gladstone-Dale relationship (KC = 0.1754) where Ncalc=Dmeas*KC+1 |
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Calculated Properties of Rynersonite |
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| Electron Density: |
relectron=5.90 gm/cc |
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| Fermion Index |
Fermion Index = 0.00029 Boson Index = 0.99971 |
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| Photoelectric: |
PERynersonite = 723.64 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Rynersonite is Not Radioactive |
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Rynersonite Classification |
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| Dana Class: |
8.3.7.2 (8)Multiple Oxides with Nb, Ta, and Ti | ||
| (8.3)where A (B2O6) | |||
| (8.3.7)Dana Group | |||
| Strunz Class: |
IV/D.21-70 IV - Oxides | ||
| IV/D - Oxides with metal : oxygen = 1:2 (MO2 and related compounds) | |||
| IV/D.21 - Aeschynite series | |||
Other Rynersonite Information |
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| References: |
NAME( MinRec) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) | ||
| See Also: |
Links to other databases for Rynersonite : 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 - WWW-MINCRYST 13 -École des Mines de Paris Search for Rynersonite using: Visit our Advertisers for Rynersonite : Translate Rynersonite Mineral Data : Ask about Rynersonite here : Print or Cut-and-Paste your Rynersonite Specimen Label here :
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