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Rynersonite
A valid IMA mineral species
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About Rynersonite
Formula:
CaTa2O6
Colour:
Pale creamy white to pale reddish pink; pale yellowish brown to dark brown
Lustre:
Waxy, Dull, Earthy
Hardness:
4½
Specific Gravity:
6.402
Crystal System:
Orthorhombic
Member of:
Name:
For Eugene B. Rynerson, owner of the San Diego Mine, his brother Buel F. and father Fred J. Rynerson (1882-1960).
This page provides mineralogical data about Rynersonite.
Unique Identifiers
Mindat ID:
3488
Long-form identifier:
mindat:1:1:3488:9
IMA Classification of Rynersonite
Approved
IMA Formula:
CaTa5+2O6
Approval year:
1974
First published:
1978
Classification of Rynersonite
4.DF.05
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
D : Metal: Oxygen = 1:2 and similar
F : With large (+- medium-sized) cations; dimers and trimers of edgesharing octahedra
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
D : Metal: Oxygen = 1:2 and similar
F : With large (+- medium-sized) cations; dimers and trimers of edgesharing octahedra
8.3.7.2
8 : MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
3 : AB2O6
8 : MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
3 : AB2O6
18.1.10
18 : Niobates and Tantalates
1 : Niobates and tantalates containing neither rare earths nor U
18 : Niobates and Tantalates
1 : Niobates and tantalates containing neither rare earths nor U
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Rys | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Rynersonite
Waxy, Dull, Earthy
Transparency:
Transparent
Colour:
Pale creamy white to pale reddish pink; pale yellowish brown to dark brown
Streak:
White
Hardness:
4½ on Mohs scale
Cleavage:
None Observed
Fracture:
Irregular/Uneven
Density:
6.402 g/cm3 (Measured) 6.394 g/cm3 (Calculated)
Optical Data of Rynersonite
Type:
Biaxial (+)
Dispersion:
Birefringence is about 0.14.
Optical Extinction:
X = c; Y = b; Z = a
Pleochroism:
Visible
Comments:
X = Y = straw-yellow; Z = light straw-yellow.
Comments:
Indices of refraction are greater than 2.05. Moderate 2V.
Chemistry of Rynersonite
Mindat Formula:
CaTa2O6
Element Weights:
Elements listed:
Crystallography of Rynersonite
Crystal System:
Orthorhombic
Class (H-M):
mmm(2/m2/m2/m) - Dipyramidal
Cell Parameters:
a = 7.505(1) Å, b = 11.063(2) Å, c = 5.370(1) Å
Ratio:
a:b:c = 0.678 : 1 : 0.485
Unit Cell V:
445.86 ų (Calculated from Unit Cell)
Z:
4
Morphology:
Thin laths, prismatic crystals. Elongated along a and flattened on (010).
Comment:
Space Group: Pmnb.
Crystal Structure
Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
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Big Balls | Small Balls | Just Balls | Spacefill
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CIF File Best | x | y | z | a | b | c
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0011896 | Rynersonite | Jahnberg L (1963) Crystal structure of orthorhombic CaTa2O6 Acta Chemica Scandinavica 17 2548-2559 | 1963 | synthetic | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.038 Å | (100) |
| 4.835 Å | (90) |
| 2.964 Å | (90) |
| 3.754 Å | (70) |
| 2.683 Å | (50) |
| 2.359 Å | (50) |
| 2.767 Å | (35) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 4b: Highly evolved igneous rocks | >3.0 |
| 34 : Complex granite pegmatites |
Type Occurrence of Rynersonite
General Appearance of Type Material:
Felted masses of fibrous to lath-like crystals. Individual laths
average less than 0.5 mm in length and 0.05 mm in thickness.
average less than 0.5 mm in length and 0.05 mm in thickness.
Place of Conservation of Type Material:
1) National Museum of Natural History, Washington, D.C., USA,
135832, 135833, 136719, 149524.
2) National School of Mines, Paris, France.
3) The Natural History Museum, London, England, 1977,144.
135832, 135833, 136719, 149524.
2) National School of Mines, Paris, France.
3) The Natural History Museum, London, England, 1977,144.
Geological Setting of Type Material:
Pegmatite
Associated Minerals at Type Locality:
Synonyms of Rynersonite
Other Language Names for Rynersonite
Relationship of Rynersonite to other Species
Member of:
Other Members of Aeschynite Group:
| Aeschynite-(Ce) | Ce(TiNb)O6 | Orth. mmm(2/m2/m2/m) : Pmna |
| Aeschynite-(Nd) | Nd(TiNb)O6 | Orth. mmm(2/m2/m2/m) |
| Aeschynite-(Y) | Y(TiNb)O6 | Orth. mmm(2/m2/m2/m) : Pmna |
| Tantalaeschynite-(Ce) | Ce(TiTa)O6 | Orth. mmm(2/m2/m2/m) : Pnma |
| Tantalaeschynite-(Y) | Y(TiTa)O6 | Orth. mmm(2/m2/m2/m) |
| 'UM2001-09-O:CaNbREESiTiY' | (Ca,Y,REE)(Ti,Nb,Si)2(O,OH)6 | |
| Vigezzite | CaNb2O6 | Orth. mmm(2/m2/m2/m) : Pnma |
| Yulinite | SrNb2O6 | Mon. 2/m : P21/c |
Common Associates
Associations Based on Photo Data:
| 6 photos of Rynersonite associated with Schiavinatoite | Nb(BO4) |
| 3 photos of Rynersonite associated with 'Cleavelandite' | Na(AlSi3O8) |
| 2 photos of Rynersonite associated with Stibiotantalite | Sb3+TaO4 |
| 2 photos of Rynersonite associated with Microcline | K(AlSi3O8) |
| 1 photo of Rynersonite associated with Quartz | SiO2 |
| 1 photo of Rynersonite associated with Zircon | Zr(SiO4) |
| 1 photo of Rynersonite associated with Columbite-(Fe) | Fe2+Nb2O6 |
| 1 photo of Rynersonite associated with Tourmaline | AD3G6(T6O18)(BO3)3X3Z |
| 1 photo of Rynersonite associated with Béhierite | Ta(BO4) |
Related Minerals - Strunz-mindat Grouping
| 4.DF.05 | Aeschynite-(Ce) | Ce(TiNb)O6 |
| 4.DF.05 | Aeschynite-(Nd) | Nd(TiNb)O6 |
| 4.DF.05 | Aeschynite-(Y) | Y(TiNb)O6 |
| 4.DF.05 | Tantalaeschynite-(Y) | Y(TiTa)O6 |
| 4.DF.05 | Vigezzite | CaNb2O6 |
| 4.DF.05 | Yulinite | SrNb2O6 |
| 4.DF.10 | Changbaiite | PbNb2O6 |
| 4.DF.15 | Murataite-(Y) | (Y,Na)6Zn(Zn,Fe3+)4(Ti,Nb,Na)12O29(O,F,OH)10F4 |
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Rynersonite
mindat.org URL:
https://www.mindat.org/min-3488.html
Please feel free to link to this page.
Please feel free to link to this page.
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External Links:
Mineral Dealers:
References for Rynersonite
Localities for Rynersonite
Showing 20 localities.
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
All localities listed without proper references should be considered as questionable.
Australia | |
| Jacobson et al. (2007) |
Czech Republic | |
| Chládek Š. (2016) |
| Novák +2 other references | |
Madagascar | |
| sergio varvello photo and collection (Ec Federico Pezzotta) |
| RRUFF ID: R080064.2 +1 other reference | |
| Agakhanov et al. (2021) | |
Mozambique | |
| Moiana (2010) |
Norway | |
| Husdal (2021) |
| Kristiansen (2000) +2 other references |
| Kristiansen (2000) |
| Kristiansen (2008) |
Russia | |
| Makagon (2007) +1 other reference |
| Voloshin et al. (1989) |
Sweden | |
| Färber (n.d.) |
Uganda | |
| von Knorring et al. (1979) |
USA | |
| Foord (1977) +1 other reference |
| Foord et al. (1978) |
| Rocks & Min. Vol.71 |
| Elder et al. (1997) | |
| Falster et al. (1996) |
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Alto Quixaba claim, Quixaba, Frei Martinho, Paraíba, Brazil