Small Thorium Vein
This object can be found in Burning Steppes (238), Blasted Lands (106), Eastern Plaguelands (81), Tanaris (69), Un'Goro Crater (50), Silithus (44), Western Plaguelands (33), Winterspring (28), Searing Gorge (17), Swamp of Sorrows (10), The Hinterlands (9), Feralas (4), Felwood (2) and Badlands (1).