| 8iljdis ((SAMARSKITE Y)), RADIOACTIVE! $10 MINIMUM BID, Ohio City, Gunnison County, Colorado, 2 x 1.5 x .7 cm, Thumbnail, | |
 | (Y, Fe, U, Th, Ca)2(Nb, Ta)2O8. Crystal faces on one side and concoidal fracture on the backside, Bill Lorah label |
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