Seleniospinel Group
A group of related mineral species
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About Seleniospinel Group
Formula:
AD2Se4
A = Co, Ni, Cu
D = Co, Ni
Note: the D site is named as B in the IMA Proposal 17-H. Changed here to avoid confusion with Boron.
D = Co, Ni
Note: the D site is named as B in the IMA Proposal 17-H. Changed here to avoid confusion with Boron.
Member of:
A group within the Spinel Supergroup.
The seleniospinell group can be divided into: bornhardtite subgroup and tyrrellite (CNMNC Newsletter No. 42).
The seleniospinell group can be divided into: bornhardtite subgroup and tyrrellite (CNMNC Newsletter No. 42).
Unique Identifiers
Mindat ID:
52867
Long-form identifier:
mindat:1:1:52867:2
IMA Classification of Seleniospinel Group
IMA status notes:
IMA Approved Group Name
Approval history:
A classification of spinel supergroup was approved by IMA in march 2018 (Proposal 17-H).
Chemistry of Seleniospinel Group
Mindat Formula:
AD2Se4
A = Co, Ni, Cu
D = Co, Ni
Note: the D site is named as B in the IMA Proposal 17-H. Changed here to avoid confusion with Boron.
A = Co, Ni, Cu
D = Co, Ni
Note: the D site is named as B in the IMA Proposal 17-H. Changed here to avoid confusion with Boron.
Crystal Structure
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2x2x2 | 3x3x3 | 4x4x4
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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) |
|---|---|---|---|---|---|---|---|
| 0010334 | Tyrrellite | Yang H, Hubler D K, Lavina B, Downs R T, Costin G (2007) Tyrrellite, Cu(Co0.68Ni0.32)2Se4, isostructural with spinel Acta Crystallographica C63 i73-i74 | ![]() | 2007 | Eagle Claims, Beaverlodge Lake area, Saskatchewan, Canada | 0 | 293 |
CIF Raw Data - click here to close
Relationship of Seleniospinel Group to other Species
Member of:
Other Members of Spinel Supergroup:
| Oxyspinel Group | AD2O4 | |
| Thiospinel Group | AB2X4 |
Seleniospinel Group Members:
| Bornhardtite Subgroup | A2+D3+2Se4 | |
| Bornhardtite | Co2+Co3+2Se4 | Iso. m3m(4/m32/m) : Fd3m |
| Trüstedtite | Ni3Se4 | Iso. |
| Nickeltyrrellite | CuNi2Se4 | Iso. m3m(4/m32/m) : Fd3m |
| Tyrrellite | Cu(Co,Ni)2Se4 | Iso. m3m(4/m32/m) : Fd3m |
Click on any node to view relationships. Formula-derived relationship network for the group members above. Use Find related species to add formula-neighbour species outside the current group view. Solid links show inferred chemical differences; dashed violet links show same-formula crystallographic differences. Hydration states are not treated as relationship changes. These relationships do not imply any real-world substitution reactions between these species.
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 Seleniospinel Group
mindat.org URL:
https://www.mindat.org/min-52867.html
Please feel free to link to this page.
Please feel free to link to this page.
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References for Seleniospinel Group
Reference List:
von Philipsborn, Henning (1971) Chalcogenide spinels and alternative structures. Zeitschrift für Kristallographie, 133 (133). 464-472 doi:10.1524/zkri.1971.133.133.464
Brik, Mikhail G., Suchocki, Andrzej, Kamińska, Agata (2014) Lattice parameters and stability of the spinel compounds in relation to the ionic radii and electronegativities of constituting chemical elements. Inorganic Chemistry, 53 (10) 5088-5099 doi:10.1021/ic500200a
Localities for Seleniospinel Group
Showing 32 localities.
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.




symbol to view information about a locality.
The
Eagle Claims U-Cu-Se occurrence, Beaverlodge Lake area, Saskatchewan, Canada