UM1991-08-O:Ti
Valid as an unnamed mineral
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A TiO2 polymorph found as lamellae within Alpine anatase. Corresponds to the synthetic TiO2 (B) polymorph.
Space group differs from that of the other monoclinic polymorphs, akaogiite and riesite.
Space group differs from that of the other monoclinic polymorphs, akaogiite and riesite.
Unique Identifiers
Mindat ID:
52052
Long-form identifier:
mindat:1:1:52052:8
Similar Names
| Ammite | A synonym of 'Ooid-limestone' | |
| UM1986-25-P:Ti | TiP | |
| UM1987-04-O:Ti | TiO1.71-1.83 | |
| UM2000-21-E:Ti | Valid as an unnamed mineral | Ti |
| UM2000-41-O:Ti (TiO2-II) | TiO2 | |
| UM2007-16-N:Ti | Valid as an unnamed mineral | Ti7N3 |
| UM2007-31-S:Ti | Valid as an unnamed mineral | Ti7S3 |
| Umbite | A valid IMA mineral species | K2(Zr,Ti)Si3O9 · H2O |
| Umite | A synonym of Humite |
IMA Classification of UM1991-08-O:Ti
IMA status notes:
Unnamed (probably valid)
Chemistry of UM1991-08-O:Ti
Mindat Formula:
TiO2
Elements listed:
Crystallography of UM1991-08-O:Ti
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/m
Setting:
C2/m
Cell Parameters:
a = 12.16 Å, b = 3.47 Å, c = 6.51 Å
β = 107.29°
β = 107.29°
Ratio:
a:b:c = 3.504 : 1 : 1.876
Unit Cell V:
262.28 ų (Calculated from Unit Cell)
Comment:
data for the SYNTHETIC material
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|
Locality:
Comments:
d info from SAED, measured
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 UM1991-08-O:Ti
mindat.org URL:
https://www.mindat.org/min-52052.html
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References for UM1991-08-O:Ti
Reference List:
Localities for UM1991-08-O:Ti
Showing 1 localities.
ⓘ - 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.
- 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.
Switzerland | |
| Banfield et al. (1991) |
