Yttropyrochlore (of Hogarth 1977)
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|Colour:||Dark brown to black||Hardness:||4½ - 5½|
|Name:||The name is derived from its supposed yttrium content and resemblance to pyrochlore-group minerals.|
A variety of Pyrochlore Group
Classification of Yttropyrochlore (of Hogarth 1977)
|IMA status:||Discredited 2010|
|Strunz 8th edition ID:||4/C.17-60|
|Nickel-Strunz 10th (pending) edition ID:||4.DH.15|
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
D : Metal: Oxygen = 1:2 and similar
H : With large (+- medium-sized) cations; sheets of edge-sharing octahedra
|Dana 8th edition ID:||220.127.116.11|
8 : MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
2 : A2B2O6(O,OH,F)
|Hey's CIM Ref.:||18.4.9|
18 : Niobates and Tantalates
4 : Niobates and tantalates containing both U and rare earths
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Type Occurrence of Yttropyrochlore (of Hogarth 1977)
|Type Locality:||Alakurtti pegmatite, Northern Karelia, Murmanskaja Oblast', Northern Region, Russia|
Physical Properties of Yttropyrochlore (of Hogarth 1977)
|Colour:||Dark brown to black|
|Hardness (Mohs):||4½ - 5½|
Relationship of Yttropyrochlore (of Hogarth 1977) to other Species
|Related Minerals - Nickel-Strunz Grouping):|
|Related Minerals - Hey's Index Grouping:|
Other Names for Yttropyrochlore (of Hogarth 1977)
|Health Warning:||No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.|
References for Yttropyrochlore (of Hogarth 1977)
Doklady Akademii Nauk SSSR (1957): 117: 117.
American Mineralogist (1977): 62: 407.
Internet Links for Yttropyrochlore (of Hogarth 1977)
Localities for Yttropyrochlore (of Hogarth 1977)
The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
(TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
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