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Re: Radionuclides in "Green Sand"-Are there any?
I forgot to include this link:
http://www.webmineral.com/data/Glauconite.shtml
The estimated activity table lists 4.5e-11 Ci/g. Calculating the K40
activity from the formula I get 4.2E-11 Ci/g. So I don't know if that is
how they estimated the activity in the glauconite, or if it was by some
measurement.
In any event K40 probably would leach out of the rock, but it is harmless
since our bodies require potassium and regulate its concentration. We all
get our 17 mrad per year from it internally.
Dale
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