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 Super High Level Uranium Ore sample

These samples are recommend for professional collectors only.

Super High Level samples are substantially more radioactive than most pieces of Uranium ore.
Super High Level samples are very difficult to obtain and are generally only found in remote places around the globe, or very deep underground. For this reason they are fairly expensive.
They are both excellent general purpose radiation sources 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 off of the rocks.
Because these are our higher 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.
These samples are for professional use only, they are not to be handled by children.
Super High Level samples are typically either very high grade Uraninite or Pitchblende ore (jet black crystals) or Torbernite ore (green crystals), as shown above.
All samples are guaranteed to measure over 31,000 CPM, and will be occasionally as high as 40,000 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 & associated information is included with your purchase.

Super High Level Uranium ore sample : $70.00