Striz Radium Rock (ca. 1930)

Striz Radium Rock (ca. 1930)

This device belongs to a category of devices know as emanators that were placed in water, usually 1-2 gallons, to infuse the water with radon, a radioactive gas.

Striz Radium Rock (ca. 1930)

It is very similar in appearance to the Hammer Radium Activator used in the Radium Water Jar. Whether the Striz Radium Rock originally came in a jar, or whether it was a stand alone device such as the Thomas Cone, is not known.

As a guess, I would say that the radioactive component, either uranium ore or purified radium, was mixed throughout the matrix of the device.

Size: 3.75" diameter, 1.9" high

Exposure rate: 20 uR/hr above background at one foot

Donated by the State of Michigan courtesy of Theodore Wentworth.