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UM1979-08-PO:CCaFeHREESiTh
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Formula:
(Th,Fe,Ca,REE)(PO4,SiO4,CO3) · 0.5H2O
Originally reported as Fe+2Th(PO4)2•H2O
Colour:
White to yellow with green or red-orange tinge
Crystal System:
Hexagonal
One of four potentially new species from Markocice, Bogatynia area (Łużyce granitoids), Poland, reported as "Mineral U-2". Composition of all 4 phases (analyzed by EPMA, DTA, TGA, XRD and IR) is variable and it is unsure how it was deduced from the analyses. Associates with thorite, so-called thorogummite, 'UM1979-07-PO:CaFeHREESiTh', 'UM1979-09-PO:FeH', 'UM1979-10-PO:FeHREETh', and 'UM1980-04-PO:CaHREETh'.
Related to brockite, but with Th > Ca (thus maybe identical with grayite?). Also related to rhabdophane. Possibly the Si-enriched Th analogue of brockite (but water amount differs).
Related to brockite, but with Th > Ca (thus maybe identical with grayite?). Also related to rhabdophane. Possibly the Si-enriched Th analogue of brockite (but water amount differs).
Unique Identifiers
Mindat ID:
47475
Long-form identifier:
mindat:1:1:47475:1
Similar Names
| UM1979-07-PO:CaFeHREESiTh | (Th,Fe2+,Ca,Fe3+,REE)(PO4,SiO4)(OH) |
Physical Properties of UM1979-08-PO:CCaFeHREESiTh
Colour:
White to yellow with green or red-orange tinge
Chemistry of UM1979-08-PO:CCaFeHREESiTh
Mindat Formula:
(Th,Fe,Ca,REE)(PO4,SiO4,CO3) · 0.5H2O
Originally reported as Fe+2Th(PO4)2•H2O
Originally reported as Fe+2Th(PO4)2•H2O
Element Weights:
Crystallography of UM1979-08-PO:CCaFeHREESiTh
Crystal System:
Hexagonal
Cell Parameters:
a = 7.04 Å, c = 6.36 Å
Ratio:
a:c = 1 : 0.903
Unit Cell V:
272.98 ų (Calculated from Unit Cell)
Z:
3
Comment:
data not sure; unit cell parameters very similar to those of (type) brockite
Radioactivity
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 UM1979-08-PO:CCaFeHREESiTh
mindat.org URL:
https://www.mindat.org/min-47475.html
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Please feel free to link to this page.
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References for UM1979-08-PO:CCaFeHREESiTh
Reference List:
Localities for UM1979-08-PO:CCaFeHREESiTh
Showing 1 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.
Poland | |
| Fe+2Th (PO4) +5 other references |
