Yttropyrochlore (of Hogarth 1977)

Type Locality

Alakurtti pegmatite, Northern Karelia, Murmanskaja Oblast', Northern Region, Russia

Mineral Data

(Y,Ca,U)_1-2(Nb,Ta,Ti)₂(O,OH)₇

Variety Of:

Strunz:

4.DH.15

Physical Properties

Hardness:

4.5 - 5.5

Tabs

References

Mindat URL:

http://www.mindat.org/min-4372.html