Scandium-bearing Ixiolite (of von Knorring)
A variety of 'Ixiolite-(Mn2+)-Ixiolite-(Fe2+) Series'
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About Scandium-bearing Ixiolite (of von Knorring)
Formula:
(Nb,Ta,Ti,Sc,Fe,Mn)4O8
Von Knorring et al. (1969) described scandian ixiolite from Mozambique and Madagascar. The content of Sc2O3 in these these varied from 7.50 wt% (Naquissupa, Mozambique) to 2.10 wt% (Antsirabe, Madagascar) and 5.10 wt% (Betanimena, Madagascar). Later it was discussed if this could be a new species because of the Nb-dominance (ixiolite is defined as being Ta-dominant). Wise et al. (1998) studied samples of Nb-dominant scandian ixiolite from the Naquissupa and Muiane pegmatites, Mozambique. These had a content of Sc2O3 from 6.8 to 11.1wt%. Lykova et al. (2021) verified these to be nioboheftetjernite, cf. discussions in Taddei et al. (2026).
This does not imply that all samples that originates from Mozambique and labelled as scandian ixiolite in collections are nioboheftetjernite. Individual analysis are needed.
See: http://www.mindat.org/mesg-7-72088.html
This does not imply that all samples that originates from Mozambique and labelled as scandian ixiolite in collections are nioboheftetjernite. Individual analysis are needed.
See: http://www.mindat.org/mesg-7-72088.html
Unique Identifiers
Mindat ID:
32091 (as Scandium-bearing Ixiolite (of von Knorring))
2059 (as Ixiolite-(Mn2+)-Ixiolite-(Fe2+) Series)
2059 (as Ixiolite-(Mn2+)-Ixiolite-(Fe2+) Series)
Long-form identifier:
mindat:1:1:32091:9 (as Scandium-bearing Ixiolite (of von Knorring))
mindat:1:1:2059:2 (as Ixiolite-(Mn2+)-Ixiolite-(Fe2+) Series)
mindat:1:1:2059:2 (as Ixiolite-(Mn2+)-Ixiolite-(Fe2+) Series)
Similar Names
Chemistry of Scandium-bearing Ixiolite (of von Knorring)
Mindat Formula:
(Nb,Ta,Ti,Sc,Fe,Mn)4O8
First Recorded Occurrence of Scandium-bearing Ixiolite (of von Knorring)
Synonyms of Scandium-bearing Ixiolite (of von Knorring)
Common Associates
Associations Based on Photo Data:
| 3 photos of Scandium-bearing Ixiolite (of von Knorring) associated with Monazite-(Ce) | Ce(PO4) |
| 2 photos of Scandium-bearing Ixiolite (of von Knorring) associated with Monazite Group | REE(PO4) |
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 von Knorring)
mindat.org URL:
https://www.mindat.org/min-32091.html
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References for Scandium-bearing Ixiolite (of von Knorring)
Reference List:
v. Knorring, O.; Sahama, Th.G.; Lehtinen, M.; von Knorring, O. (1969) Scandian ixiolite from Mozambique and Madagascar. Bulletin of the Geological Society of Finland, 41. 75-77 doi:10.17741/bgsf/41.007
Localities for Scandium-bearing Ixiolite (of von Knorring)
Showing 5 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.
Madagascar (FRL) | |
| v. Knorring et al. (1969) |
| v. Knorring et al. (1969) |
Mozambique | |
| Pavel M. Kartashov (n.d.) |
| v. Knorring et al. (1969) | |
Russia | |
| Badanina et al. (2008) |
Namivu Pegmatite, Gilé District, Zambezia Province, Mozambique