Like all radioactive samples sold by United Nuclear, the radiation levels measured are
combined Beta and Gamma radiation.
We never include Alpha radiation measurements as that produces a deceivingly high reading.

A certificate of accurate radiation measurement is included with all samples.

Typical Ultra High level samples

Due to the high radiation level, these samples are recommend
only for scientific/research use, or professional collectors.

Our Ultra High Level samples are the highest grade of Uranium ore found on Earth.
Measuring over 60,000 CPM, these samples emit the highest level of radiation that can be obtained
without special licensing from the Nuclear Regulatory Commission.
Ultra High Level samples are the rarest Uranium ores. Like our Super High Level samples, they are only found in remote places around the globe, or very deep underground. They are quite difficult to come by and we may only have them available from time to time.
Ultra High Level samples are excellent for use as a general purpose radiation source for a variety of experiments. They are also ideal for HazMat training for locating radioactive materials with radiation detection equipment. Radioactive ore samples are far stronger, and considerably less expensive than pure radioactive isotope sources. They can be sealed in a zip-loc bag for most uses so any chips or small particles will not get lost with rough handling (the radiation they emit easily penetrates the zip-loc bag). Although they are safe to handle with your hands, it is prudent to wash your hands after handling the samples to prevent ingesting radioactive chips or fine particles that may fall of the rocks.
Because these are our highest radiation level samples, a couple special precautions are required:
DO NOT store these samples on your person, and DO NOT handle these samples for long periods of time.
These samples are for professional use only, they are not to be handled by children.
Currently all Ultra High Level samples are composed of green Torbernite Uranium Ore, as shown above.
All samples are guaranteed to measure over 61,000 CPM, and will be occasionally as high as 80,000 CPM.
Samples typically measure anywhere from about 2" across to 3.5" across. 
As with all our Uranium ore samples, a certificate stating your sample's precise radiation
  measurement, sample origin & associated information is included with your purchase.

Sorry - Temporarily Sold Out
Ultra High Level Uranium ore sample (Item# ULUO): $200.00
Sorry - Temporarily Sold Out