The Finding of the Four Seasons Slab, 13.1 mR/hr
This video was shot the day we found the Four Seasons slab, over 800 uR/hr (6 uR/hr is background radiation, so 133 times background). You can watch the CDV data logger work. This color of granite is available in much lower radiation levels, some around 20 uR/hr which is pretty good for a granite with so much movement.
Remember, don’t reject a color or a country of origin, reject the slab.
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