Extreme top grade ore with rich and rare mineral "Gummite" crust and veins including Becquerelite, Compreignacite, and UV-reactive Uranium Minerals.
As somebody who has handled many world class pieces that Museums would fight over, I don't say that a piece is THE BEST often. This piece is in my personal top 3 BEST Uraninite that I have had the pleasure to attain. This is the first thing I would grab in the case of a house fire.
Specimen comes from the esteemed 1950's collection of Eugene Gross who wrote the paper on this find and many others. It also passed through the hands of Sharon Cisneros who is a fantastic lady who sold some really great specimens through her Mineralogical Research Co. in the 90s.
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2.75 Million CPM on Radiacode 110
1.45 Million CPM on Radiacode 103
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An absolutely museum display and a radioactive beast.  This is my hottest rock I have had. I have kept it safe and enjoyed it for awhile now but if an appreciative owner is out there... Just be careful. This is a Radon Factory. It is aptly named "The Death Rock". It is irreplaceable and nothing I have seen even comes close to its glory. Enjoy it here at a distance. Or if you want something that is one of a kind, this piece will soon be antiquated, comes with the old label and a historic provenance, and is just plain EPIC.
7.3855 POUNDS
3.35 Kilograms
33500 grams of Solid Dense Uraninite encrusted with rare secondary Uranium minerals.
15.5x12x8.5
Lookout #22 Claim, Saguache County, Colorado
1950s! Eugene Gross Collection. Irreplaceable and one of a kind behemoth of a specimen. The weight and density is extremely impressive.
My personal favorite and overall hottest piece. At this price it is truly a steal as this belongs in a museum.