Uraninite var. Pitchblende, Chalcocite: Happy Jack mine, San Juan County, Utah, USA

Description

Locality: Uraninite var. Pitchblende, Chalcocite

Species: Happy Jack mine, White Canyon, San Juan County, Utah, USA

Size: 7 x 6.5 x 3 cm.

Weight: 270 grams

Ex. Jack Nieburger collection

A very rich and very hot specimen of near-solid black pitchblende with sooty chalcocite repalcing wood from the classic Happy Jack mine in White Canyon, Utah. Measures over 230,000 CPM on my Ludlum Model 3 Geiger Counter with the 44-9 probe. HOT! From the noted collection of Jack Nieburger.