Species: “Gummite”, Uraninite, Zircon
Locality: Ruggles mine, Grafton, New Hampshire USA
Dimensions: 5 x 4 x 2 cm. (110 grams)
Ex. David P. Wilber Collection
For most serious collectors of radioactive minerals, the classic “gummite” specimens from the Ruggles mine in New Hampshire need no introduction. This is a much better than average example with vivid yellow-orange colors, abundant uraninite dendrites, a beautiful polish on both cut sides. HOT as well, over 150,000 CPM on my Ludlum Model 3 counter. This material in this quality has become very uncommon!