This 'High grade' Uraninite sample is from central Colorado. It features an impressive radiation emission of 35,000 CPM using a 'hot dog' probe and 240,000 CPM using a 'pancake' type probe. It's quite a large sample, weighing a whopping 375 grams and measuring about 4" across. A great sample for professional collectors, display, or Uranium extraction experiments. Please Note - all our Uranium Ore Samples are unique - that is, there is only one of each. As soon as it it sold, it is gone - and we have no guarantee that we will be able to restock a similar mineral sample.
As with all our Uranium ore samples, a certificate stating your sample's precise radiation measurement & associated information is included with your purchase.