[Rockhounds] info on radioactive minerals

[pmodreski]

They are probably pretty "hot", Larry. The specimens look to be rich in those minerals, and because of their old geologic age, they have had time for lots of radioactive daughter products to accumulate, hence, high radioactivity for a given amount of the mineral.Pete


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-------- Original message --------From: larryrush at att.net Date: 7/28/18  6:29 PM  (GMT-07:00) To: rockhounds at rockhounds.drizzle.com Subject: [Rockhounds] info on radioactive minerals 
I recently picked up a flat of minerals labeled "radioactive". Normally, I
don't bother much with these, but working with the torbernite has been an
interesting experience, so I can use some help here with these...

 

Of the 16 hand sized pieces in the flat, 7 are labeled Uraninite, Canadian
Dyno mine, Cardiff, Ontario, and 9 are labeled Allanite and Cyrtolite
(Zircon), McDonald Mine, Hybla, Ontario (ghost town).

There are no crystals or faces showing, just masses and clusters of grains.
The matrix in each of these appears to be a feldspar.

 

I have no idea of the "hotness" of them, or of their worth as specimens, but
I'd appreciate any information on them, or similar pieces. 

You can see photos at:

 

https://www.irista.com/gallery/8gr7ctnsopro

 

 

(If interested in buying any, make me an offer.)

 

Larry