Hi Clea2782.
I can't give you specifics because I've never fossicked the area myself but I believe there are a number of interesting things to be found in the Cloncurry/Mount Isa area. Amethyst at Kurridala and rhodolite garnets at Fullarton river. Some of the amethyst clusters I've seeen that are supposed to have come from Kurridala would be very display case-worthy.
Cheers