UM1996-40-SiO:BaFFeHKNaTi
Valid as an unnamed mineral
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Formula:
(Ba,K,Na)FeTi2Si2O9(F,O,OH)2
Related to bafertisite (also optically). Co-described with UM1996-41-SiO:CCaCeFFeNbPbThTiU.
Coexists with bafertisite in rims on ilmenite grains.
Electron microprobe data (wt.%):
K2O 0.84, 0.51,
Na2O 0.41, 0.48
ZnO 0.31, 0.14
CaO 0.23, 0.16
BaO 25.21, 28.13
MgO —, 0.02
MnO 0.92, 0.65
FeO 12.78, 10.30
Ce2O3 2.97, 3.06
Al2O3 0.46, 0.42
Nb2O5 0.51, 0.88
SnO2 0.08, 0.07
TiO2 20.61, 29.84
ZrO2 —, 0.12,
SiO2 26.24, 21.83
F 2.25, 1.96
O=F 0.95, 0.83
total 92.87, 97.74
The above corresponds to:
-K0.47Na0.35Zn0.10Ca0.11Ba4.34Mn0.34Fe4.69Ce0.48Nb0.10Sn0.02Ti6.81Al0.24Si11.52F3.12O48;
- K0.28Na0.39Zn0.04Ca0.07Ba4.66Mg0.01Mn0.23Fe3.65Ce0.47Nb0.17Sn0.01Ti9.50Zr0.03Al0.21Si9.24F2.62O48.
Coexists with bafertisite in rims on ilmenite grains.
Electron microprobe data (wt.%):
K2O 0.84, 0.51,
Na2O 0.41, 0.48
ZnO 0.31, 0.14
CaO 0.23, 0.16
BaO 25.21, 28.13
MgO —, 0.02
MnO 0.92, 0.65
FeO 12.78, 10.30
Ce2O3 2.97, 3.06
Al2O3 0.46, 0.42
Nb2O5 0.51, 0.88
SnO2 0.08, 0.07
TiO2 20.61, 29.84
ZrO2 —, 0.12,
SiO2 26.24, 21.83
F 2.25, 1.96
O=F 0.95, 0.83
total 92.87, 97.74
The above corresponds to:
-K0.47Na0.35Zn0.10Ca0.11Ba4.34Mn0.34Fe4.69Ce0.48Nb0.10Sn0.02Ti6.81Al0.24Si11.52F3.12O48;
- K0.28Na0.39Zn0.04Ca0.07Ba4.66Mg0.01Mn0.23Fe3.65Ce0.47Nb0.17Sn0.01Ti9.50Zr0.03Al0.21Si9.24F2.62O48.
Unique Identifiers
Mindat ID:
54074
Long-form identifier:
mindat:1:1:54074:4
IMA Classification of UM1996-40-SiO:BaFFeHKNaTi
IMA status notes:
Unnamed (probably valid)
Chemistry of UM1996-40-SiO:BaFFeHKNaTi
Mindat Formula:
(Ba,K,Na)FeTi2Si2O9(F,O,OH)2
Element Weights:
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 UM1996-40-SiO:BaFFeHKNaTi
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https://www.mindat.org/min-54074.html
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References for UM1996-40-SiO:BaFFeHKNaTi
Localities for UM1996-40-SiO:BaFFeHKNaTi
Showing 1 localities.
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? - 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.
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All localities listed without proper references should be considered as questionable.
Canada | |
| Birkett et al. (1996) +1 other reference |
