#MinCup23 Vote #Zircon!! Here's a gorgeous big chestnut zircon from the excellently-named Mud Tank carbonatite, in Northern Australia. This one, which I bought in Tucson in 2006, is nearly 4cm long. *AND* this crystal also glows gold in 254nm UV light!! Vote for truth and beauty - #VoteZircon ๐ ๐ #Geology #Mineralogy

