UM2002-42-SiO:CaFeTi
Valid as an unnamed mineral
This page is currently not sponsored. Click here to sponsor this page.
Formula:
(Ca,Fe)3TiSi2O9
or (Ca,Fe)3Ti(Si2O7)O2
Colour:
dark reddish to purplish brown (in thin section?)
The Ti analogue of baghdadite.
As euhedral grains, with hexanogal outlines, up to 60 μm in diameter.
May stand for as much as 10% of the mass of the local orangeite; associates include 'apatite', phlogopite, diopside, perovskite, ....
Mean EPMA data [wt.%]:
Na2O 0.65
CaO 30.26
MgO 1.57
MnO 0.38
Fe2O3 15.59
TiO2 21.38
SiO2 26.19
total 96.02
This corresponds to (Ca2.11Fe0.53Mg0.15Na0.08Mn0.02)Σ2.89(Ti0.76Fe0.24)Σ1.00(Si1.71Ti0.29)Σ2.00O9.
As euhedral grains, with hexanogal outlines, up to 60 μm in diameter.
May stand for as much as 10% of the mass of the local orangeite; associates include 'apatite', phlogopite, diopside, perovskite, ....
Mean EPMA data [wt.%]:
Na2O 0.65
CaO 30.26
MgO 1.57
MnO 0.38
Fe2O3 15.59
TiO2 21.38
SiO2 26.19
total 96.02
This corresponds to (Ca2.11Fe0.53Mg0.15Na0.08Mn0.02)Σ2.89(Ti0.76Fe0.24)Σ1.00(Si1.71Ti0.29)Σ2.00O9.
Unique Identifiers
Mindat ID:
54382
Long-form identifier:
mindat:1:1:54382:0
IMA Classification of UM2002-42-SiO:CaFeTi
IMA status notes:
Unnamed (probably valid)
Physical Properties of UM2002-42-SiO:CaFeTi
Transparency:
Opaque
Colour:
Dark reddish to purplish brown (in thin section?)
Comment:
Almost opaque in thin section
Chemistry of UM2002-42-SiO:CaFeTi
Mindat Formula:
(Ca,Fe)3TiSi2O9
or (Ca,Fe)3Ti(Si2O7)O2
or (Ca,Fe)3Ti(Si2O7)O2
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 UM2002-42-SiO:CaFeTi
mindat.org URL:
https://www.mindat.org/min-54382.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
Mineral Dealers:
References for UM2002-42-SiO:CaFeTi
Reference List:
Hammond, A. L., Mitchell, R. H. (2002) Accessory mineralogy of orangeite from Swartruggens, South Africa. Mineralogy and Petrology, 76 (1) 1-19 doi:10.1007/s007100200029Abs. in: Jambor, J.L., Kovalenker, V.A., Roberts, A.C. (2003): New mineral names. Am. Mineral.: 88: 934
Localities for UM2002-42-SiO:CaFeTi
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.
South Africa | |
| Hammond et al. (2002) +1 other reference |
