Scandium-bearing Ixiolite (of Bergstøl & Juve)
A variety of 'Ixiolite-(Mn2+)-Ixiolite-(Fe2+) Series'
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About Scandium-bearing Ixiolite (of Bergstøl & Juve)
First reported as a scandium-dominant variety of ixiolite (Bergstøl & Juve, 1988), that might be be a new species. The content of Sc2O2 was reported as varying from 1.70 to 18.80 wt % (Bergstøl & Juve, 1988).
A scandium member in the ixiolite group, Ixiolite-(Sc) as a new mineral was characterized and described by Taddei et al. (2026). The scandian ixiolite (of Bergstøl & Juve) is likely identical with ixiolite-(Sc), but further investigations is needed (status May 2026). It is also an open question if the scandian-bearing ixiolite found at Heftetjern also represents other members of the ixiolite group.
For some, now (2026) historical discussion on Scandium-bearing Ixiolite (of Bergstøl & Juve), see messageboard at http://www.mindat.org/mesg-7-72088.html
A scandium member in the ixiolite group, Ixiolite-(Sc) as a new mineral was characterized and described by Taddei et al. (2026). The scandian ixiolite (of Bergstøl & Juve) is likely identical with ixiolite-(Sc), but further investigations is needed (status May 2026). It is also an open question if the scandian-bearing ixiolite found at Heftetjern also represents other members of the ixiolite group.
For some, now (2026) historical discussion on Scandium-bearing Ixiolite (of Bergstøl & Juve), see messageboard at http://www.mindat.org/mesg-7-72088.html
Name Encoding
ASCII-7:
Scandium-bearing Ixiolite (of Bergstol & Juve)
Unique Identifiers
Mindat ID:
32092 (as Scandium-bearing Ixiolite (of Bergstøl & Juve))
2059 (as Ixiolite-(Mn2+)-Ixiolite-(Fe2+) Series)
2059 (as Ixiolite-(Mn2+)-Ixiolite-(Fe2+) Series)
Long-form identifier:
mindat:1:1:32092:8 (as Scandium-bearing Ixiolite (of Bergstøl & Juve))
mindat:1:1:2059:2 (as Ixiolite-(Mn2+)-Ixiolite-(Fe2+) Series)
mindat:1:1:2059:2 (as Ixiolite-(Mn2+)-Ixiolite-(Fe2+) Series)
Similar Names
| Scandium-bearing Ixiolite (of von Knorring) | A variety of 'Ixiolite-(Mn2+)-Ixiolite-(Fe2+) Series' | (Nb,Ta,Ti,Sc,Fe,Mn)4O8 |
Physical Properties of Scandium-bearing Ixiolite (of Bergstøl & Juve)
Fracture:
Conchoidal
Chemical Analysis
Oxide wt%:
| 1 | |
|---|---|
| Ta2O5 | 48.00 % |
| Nb2O5 | 18.80 % |
| MnO | 2.40 % |
| FeO | 3.20 % |
| Sc2O3 | 18.80 % |
| Y2O3 | 0.10 % |
| TiO2 | 0.40 % |
| SnO2 | 7.30 % |
| Total: | 99 % |
Empirical formulas:
| Sample ID | Empirical Formula |
|---|---|
| 1 | (Sc1.46Ta1.16Nb0.76Sn0.26Fe0.24Mn0.18Ti0.03)Σ4.09O8 |
Sample references:
| ID | Locality | Reference | Notes |
|---|---|---|---|
| 1 | Heftetjern pegmatite, Tørdal, Drangedal, Telemark, Norway | With large areas altered to microlite. Electron Micro Probe analysis. Empirical formula, see also Raade & Kristiansen (2000) |
Synonyms of Scandium-bearing Ixiolite (of Bergstøl & Juve)
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 Scandium-bearing Ixiolite (of Bergstøl & Juve)
mindat.org URL:
https://www.mindat.org/min-32092.html
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References for Scandium-bearing Ixiolite (of Bergstøl & Juve)
Reference List:
Bergstøl, S., Juve, Gunnar (1988) Scandian ixiolite, pyrochlore and bazzite in granite pegmatite in Tørdal, Telemark, Norway. A contribution to the mineralogy and geochemistry of scandium and tin. Mineralogy and Petrology, 38 (4) 229-243 doi:10.1007/bf01167090
Heftetjern pegmatite, Tørdal, Drangedal, Telemark, Norway