Niobium-bearing Brookite
A variety of Brookite
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About Niobium-bearing Brookite
Formula:
(Ti,Nb,Fe)O2
Charge transfer balance is usually via the heterovalent substitution scheme Nb(V) + Fe(III) <-> 2Ti(IV).
Unique Identifiers
Mindat ID:
55728 (as Niobium-bearing Brookite)
787 (as Brookite)
787 (as Brookite)
Long-form identifier:
mindat:1:1:55728:5 (as Niobium-bearing Brookite)
mindat:1:1:787:8 (as Brookite)
mindat:1:1:787:8 (as Brookite)
Chemistry of Niobium-bearing Brookite
Mindat Formula:
(Ti,Nb,Fe)O2
Charge transfer balance is usually via the heterovalent substitution scheme Nb(V) + Fe(III) <-> 2Ti(IV).
Charge transfer balance is usually via the heterovalent substitution scheme Nb(V) + Fe(III) <-> 2Ti(IV).
Elements listed:
Chemical Analysis
Oxide wt%:
| 1 | |
|---|---|
| TiO2 | 83.06 % |
| Nb2O5 | 13.30 % |
| FeO | 3.85 % |
| Total: | 100.21 % |
Sample references:
| ID | Locality | Reference | Notes |
|---|---|---|---|
| 1 | Cone Negosa Hill, Zumbu District, Tete Province, Mozambique | Wet chemical analysis |
Synonyms of Niobium-bearing Brookite
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 Niobium-bearing Brookite
mindat.org URL:
https://www.mindat.org/min-55728.html
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References for Niobium-bearing Brookite
Localities for Niobium-bearing Brookite
Showing 4 localities.
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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.
Mozambique | |
| De Carvalho et al. (1974) |
Namibia | |
| Werner et al. (2001) |
Russia | |
| Kaigorodova et al. (2021) |
USA | |
| Shen (n.d.) |
Magnet Cove, Hot Spring County, Arkansas, USA