Fergusonite-(Nd) Ferriallanite-(Ce) Image

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Fergusonite-(Nd), Ferriallanite-(Ce)

Mineral:

Fergusonite-(Nd): (Nd,Ce)(Nb,Ti)O4
Ferriallanite-(Ce): CaCe(Fe+++,Fe++,Al)3[SiO4][Si2O7]O(OH)

Comments:

Orange-brown ferusonite-(Nd) grains in ferriallanite-(Ce) zone of the vein. Main black inclusions are ferriallanite-(Ce) crystals. White matrix is mixture of calcian strontianite and strontian calcite.

Location:

Tornebohmite vein, Biraya Fe-REE ore occurrence, Biraya and Bya Rivers confluence area (Chara Basin), Vitim Plateau, Buriatia (Buryatia) Republic, Transbaikalia (Zabaykalye), Eastern-Siberian Region, Russia.

Scale:

FOV 1 cm.

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