Very Heavy and Moderately Radioactive Mineral of Unknown Composition
Very Heavy and Moderately Radioactive Mineral of Unknown Composition
Description and Surface Radioactivity: Extremely large and heavy specimen of some type of radioactive mineral (perhaps Thorite?) in matrix from an unknown location.
Size: 29 x 17 x 8 cm. Weight: 6000 grams (about 14 pounds)
Surface Radioactivity: 2600 CPM and .75 mR/hr on a Ludlum Model 3 detector with a 44-9 probe placed at the surface of the specimen.
Price: $500. Shipping: $30.
