description: LOCALITY: Sao Pedro Mine, near Malacacheta, Minas Gerais, Brazil 1 1/2" across Ex collection of Dr Steve Neely Illustrated in "Encyclopedia of Minerals - Edition 2". Although relatively small for the species, it is one of the finest from Brazil that I have seen. It is of pegmatitic origin and this ads interest to it. Autunite is a uranium bearing phosphate. It glows fluorescent green under long, intermediate and short wave ultraviolet light and this spectacular property impresses even those oblivious to mineral specimens and the hobby of collecting them. :)
0 selected items clear
selected items : 0