No, it's an alpha emitter, I think, (radioactive) and the dust from a broken mantle is breathable, leading to a risk of lung cancer.

Peter

On Apr 16, 2012, at 6:18 PM, Craig wrote:

On Mon, 16 Apr 2012 18:14:23 -0400 John Reames <jwrea...@comcast.net>
wrote:

Now to figure out who makes thoriated mantles; the new manufacture
Coleman ones (that are no longer thoriated) put out at most 2/3 of the
light (and more likely 1/2...)

Did they stop using thorium because it can be used in a dirty bomb and
they might be liable if it's stolen from them?


Craig

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