Vandendriesscheite, Uraninite, Soddyite, Parauranophane, Phosphuranylite, Quartz, Albite: Ruggles Mine, Grafton, Grafton County, New Hampshire, USA

Species: Vandendriesscheite, Uraninite, Soddyite, Parauranophane, Phosphuranylite, Quartz, Albite

Locality: Ruggles Mine, Grafton, Grafton County, New Hampshire, USA
Dimensions: 12.5 cm x 8 cm x 5 cm

Superb, large, very rich specimen of black uraninite grains surrounded by “gummite”, which (with the help of references) consists of orange vandendriesscheite and yellow +/-soddyite/parauranophane/phosphuranylite, in smoky quartz and albite pegmatite matrix. Eric Quinter specimen U/Th 0518, pictured on mindat.org. Measures over 150,000 CPM on my Ludlum Model 3 Counter with the 44-9 probe!