Yttropyrochlore (of Hogarth 1977)
A variety of Pyrochlore Group
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About Yttropyrochlore (of Hogarth 1977)
Formula:
A2Nb2(O,OH)6Z
Colour:
Dark brown to black
Lustre:
Adamantine, Vitreous
Hardness:
4½ - 5½
Name:
The name is derived from its supposed yttrium content and resemblance to pyrochlore-group minerals.
First Recorded Locality:
Unique Identifiers
Mindat ID:
4372 (as Yttropyrochlore (of Hogarth 1977))
3316 (as Pyrochlore Group)
3316 (as Pyrochlore Group)
Long-form identifier:
mindat:1:1:4372:0 (as Yttropyrochlore (of Hogarth 1977))
mindat:1:1:3316:5 (as Pyrochlore Group)
mindat:1:1:3316:5 (as Pyrochlore Group)
GUID
(UUID V4):
(UUID V4):
ac1ea218-61ec-43f0-905a-d285841f2e48 (as Yttropyrochlore (of Hogarth 1977))
3a54fe93-40ce-4d2b-baa3-52597b88699b (as Pyrochlore Group)
3a54fe93-40ce-4d2b-baa3-52597b88699b (as Pyrochlore Group)
Classification of Yttropyrochlore (of Hogarth 1977)
Discredited
8.2.1.4
8 : MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
2 : A2B2O6(O,OH,F)
8 : MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
2 : A2B2O6(O,OH,F)
18.4.9
18 : Niobates and Tantalates
4 : Niobates and tantalates containing both U and rare earths
18 : Niobates and Tantalates
4 : Niobates and tantalates containing both U and rare earths
Physical Properties of Yttropyrochlore (of Hogarth 1977)
Chemical Properties of Yttropyrochlore (of Hogarth 1977)
Formula:
A2Nb2(O,OH)6Z
Elements listed:
Chemical Analysis
Oxide wt%:
1 | |
---|---|
CaO | 1.2 % |
MnO | 1.7 % |
FeO | 3.4 % |
Sc2O3 | 6.0 % |
Y2O3 | 12.5 % |
SnO2 | 2.7 % |
UO2 | 6.6 % |
WO3 | 2.2 % |
Ta2O5 | 37.4 % |
Nb2O5 | 23.5 % |
TiO2 | 1.0 % |
F | 0.2 % |
Total: | 98.4 % |
Sample references:
ID | Locality | Reference | Notes |
---|---|---|---|
1 | Heftetjern pegmatite, TĂžrdal, Drangedal, Vestfold og Telemark, Norway | Bergst | Altered ixiolite. Electron Microprobe analysis. |
First Recorded Occurrence of Yttropyrochlore (of Hogarth 1977)
Synonyms of Yttropyrochlore (of Hogarth 1977)
Other Language Names for Yttropyrochlore (of Hogarth 1977)
German:Yttropyrochlor-(Y)
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 Yttropyrochlore (of Hogarth 1977)
mindat.org URL:
https://www.mindat.org/min-4372.html
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Please feel free to link to this page.
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Mineral Dealers:
References for Yttropyrochlore (of Hogarth 1977)
Reference List:
Localities for Yttropyrochlore (of Hogarth 1977)
Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
â - 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.
All localities listed without proper references should be considered as questionable.
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Ukraine | |
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Zelenaya Mogila pegmatite, Eliseevskoe pegmatite field, Eliseevka, Pryazovske Raion, Zaporizhia Oblast, Ukraine