Samarskite-(Y) Mineral Gallery

Samarskite-(Y): (Y,Fe+++,U)(Nb,Ta)5O4

Comments: A black crystal of samarskite. Ex collection Gustav Rose 1832, found on his travel together with Alexander von Humboldt through the Ural Mts.
Location: Miass, Ilmen Mts, Chelyabinsk Oblast', Urals Region, Russia. Scale: Crystal size 8 mm.
© Thomas Witzke / Abraxas-Verlag

Samarskite-(Y): (Y,Fe+++,U)(Nb,Ta)5O4  
Uranpyrochlore: (U,Ca,Ce)2(Nb,Ta)2O6(OH,F)

Comments: Deep greenish-brown resinous crystalline massive uranpyrochlore with black samarskite-(Y).
Location: Beryl Hill, near Yinnietharra Station, Western Australia, Australia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Samarskite-(Y): (Y,Fe+++,U)(Nb,Ta)5O4

Comments: A small but intricate cluster of fairly sharp samarskite-(Y) crystals (overall dimensions 15 by 15 by 22 mm) dug from the floor of the open cut.
Location: Spinelli Quarry (Spinelli prospect), South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA. Scale: See Image.
© Fred Davis