Tungsten

(wol- \ W 48.0 18.69 IV or VI Mainly in wolframite framium),.. j 184.0 Very high. (MnFeW04). Uranium,... U 19.26 Very high. II or VI 239.6 Inrare pitch-blende minerals. and other Vanadium, V 5-87 In oxyhydric V In vanadinite and other 51-4 flame. rare minerals. ch294.xhtml w 256