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Perrierite-(Ce): (Ce,La,Ca)4(Fe++,Mg)2(Ti,Fe+++)3Si4O22 Pyrochlore: (Na,Ca)2Nb2O6(OH,F) Zircon: ZrSiO4 Loparite-(Ce): (Ce,Na,Ca)2(Ti,Nb)2O6
Comments: Reddish black perrierite crystal, with orange-brown pyrochlore crystal, yellow-brown zircon, and grayish-black loparite.
Location: Buer, Bjorkedalen, Langesundfjord, Telemark, Norway.
Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species
Comments: Black, granular perrierite in white calcite.
Location: Buer, Bjørkedalen, Porsgrunn, Telemark, Norway.
Scale: Picture size 3 mm.
© Paul M. Schumacher