Uraninite, “Gummite”, Schoepite

Excellent, colorful slabbed specimen of brightly-colored dendritic uraninite with various “gummite” group minerals and cyrtolite zircon in feldspar matrix from the famous Ruggles mine in central New Hampshire, USA. Measures ~100,000 CPM on my Ludlum Model 3 counter with the 44-9 probe. Rare!!