Uraninite from Pribram, Czech Republic

Uraninite from Příbram, Příbram District, Central Bohemian Region, Czech Republic

Nice little specimens of black botryoidal Uraninite on matrix from Pribram, Czech Republic.

These pieces are radioactive, rather highly so - so safe mineral handling procedures should be followed.

The pieces will be supplied boxed with our ID label.

Our current stock includes: 

All measurements taken at 0-1CM with a radiacode2 scintillator. Some of the results varied pretty widely so I've given an approximate average over a one minute exposure.

• #1 - 32x20.7x18.1MM - approximately 60-70uSv/hr
• #2 - 47.4x39.2x10MM - approximately 25-30uSv/hr
• #3 - 43.6x37.6x22.8MM - approximately 5-6uSv/hr
• #4 - 17.6x11.1x4.7MM - approximately 3-3.5uSv/hr
• #5 - 8.4x7.1x5.4MM - approximately 3-4uSv/hr

I would highly recommend taking precautions on the storage and viewing of these pieces; the radioactivity does fall off rather quickly with distance, but for the larger pieces a properly made storage box with a lead lining may help considerably. Please do not purchase these specimens if you are not familiar with safe materials handling.

Toxic and radioactive mineral: contains uranium.