UM1979-10-PO:FeHREETh
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Formula:
(Fe2+1-x,Th1-x,REE,Fe3+)2x(PO4)2 · 1-3H2O
Originally reported as Fe+21-xTh1-x(RE,Fe+3)2x(PO4)2.1-3H2O
Colour:
Reddish-brown
Crystal System:
Orthorhombic
One of four potentially new species from Markocice, Bogatynia area (Łużyce granitoids), Poland, reported as "Mineral U-3". 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', 'UM1979-08-PO:CCaFeHREESiTh', 'UM1979-09-PO:FeH', and 'UM1980-04-PO:CaHREETh'.
Relation to ningyoite suggested, with Fe-for-Ca and Th-for-U replacements. Thus, possibly the Fe-Th-REE analogue of ningyoite? Also possibly related to another ningyoite-like phase from Markocice - 'UM1980-04-PO:CaHREETh'.
Relation to ningyoite suggested, with Fe-for-Ca and Th-for-U replacements. Thus, possibly the Fe-Th-REE analogue of ningyoite? Also possibly related to another ningyoite-like phase from Markocice - 'UM1980-04-PO:CaHREETh'.
Unique Identifiers
Mindat ID:
47477
Long-form identifier:
mindat:1:1:47477:9
Physical Properties of UM1979-10-PO:FeHREETh
Colour:
Reddish-brown
Chemistry of UM1979-10-PO:FeHREETh
Mindat Formula:
(Fe2+1-x,Th1-x,REE,Fe3+)2x(PO4)2 · 1-3H2O
Originally reported as Fe+21-xTh1-x(RE,Fe+3)2x(PO4)2.1-3H2O
Originally reported as Fe+21-xTh1-x(RE,Fe+3)2x(PO4)2.1-3H2O
Crystallography of UM1979-10-PO:FeHREETh
Crystal System:
Orthorhombic
Class (H-M):
2 2 2 - Disphenoidal
Space Group:
P2 2 2
Cell Parameters:
a = 6.77 Å, b = 12.06 Å, c = 6.41 Å
Ratio:
a:b:c = 0.561 : 1 : 0.532
Unit Cell V:
523.35 ų (Calculated from Unit Cell)
Comment:
class & space group probable; unit cell parameters very close to those of ningyoite
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 UM1979-10-PO:FeHREETh
mindat.org URL:
https://www.mindat.org/min-47477.html
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References for UM1979-10-PO:FeHREETh
Reference List:
Localities for UM1979-10-PO:FeHREETh
Showing 1 localities.
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The Locality List
- This locality has map coordinates listed.
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? - Indicates mineral may be doubtful at this locality.
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- 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.
Poland | |
| Fe+2Th (PO4) +5 other references |
