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UM1996-17-O:CrFeNbTiV

Valid as an unnamed mineral
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Formula:
(Cr,V,Fe)2(Ti,V4+,Nb)O5
Smith & Nickel (2007) formula: (V,Cr,Ti)2(Ti,V4+,Nb)O5
Likely related (or identical?) to berdesinskiite. May stand for the Cr analogue of the latter. Chemically related to olkhonskite.

Occurs as "widely disseminated" grains, usually below 50 microns in diameter.
Associated with crichtonite group, phenakite, rutile, thorite, uraninite, zircon.
Environment: diatreme complex probably related to a carbonatite.

Electron microprobe data (wt%, 100%-normalized):
TiO2 26.29-33.88
Nb2O5 3.67-10.21
Cr2O3 19.88-25.43
V2O3 23.17-29.80
Sc2O3 0.64-1.02
Al2O3 0.21-0.59
FeO 10.96-12.30
SrO 0.33-1.04
PbO 0.29-1.01
CaO 0.20-0.23


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Unique IdentifiersHide

Mindat ID:
54063
Long-form identifier:
mindat:1:1:54063:8

IMA Classification of UM1996-17-O:CrFeNbTiVHide

IMA status notes:
Unnamed (probably valid)

Chemistry of UM1996-17-O:CrFeNbTiVHide

Mindat Formula:
(Cr,V,Fe)2(Ti,V4+,Nb)O5

Smith & Nickel (2007) formula: (V,Cr,Ti)2(Ti,V4+,Nb)O5
Element Weights:
Element% weight
Cr44.852 %
O34.503 %
Ti20.645 %

Calculated from ideal end-member formula.
Elements listed:
Cr, Fe, Nb, O, Ti, V - search for minerals with similar chemistry

Synonyms of UM1996-17-O:CrFeNbTiVHide

Other InformationHide

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 UM1996-17-O:CrFeNbTiVHide

References for UM1996-17-O:CrFeNbTiVHide

Localities for UM1996-17-O:CrFeNbTiVHide

Showing 2 localities.

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
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Locality ListHide

- 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). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Canada
 
  • Ontario
    • Thunder Bay District
      • Walsh Township
Platt et al. (1996) +2 other references
Russia
 
  • Irkutsk Oblast
Koneva (2002) +1 other reference
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