New torbernite specimen with spectrum

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Geoff
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New torbernite specimen with spectrum

Post by Geoff » 08 Feb 2020, 15:09

I recently acquired a new specimen of torbernite from Calo, la Coruna, Spain. It’s about 60x35mm, and very hot. Attached are two pictures and the gamma spectrum showing radium and daughters.
5680AE56-68FB-4EDB-B929-4AD03783173E.jpeg
30DA106F-4610-4EC5-BA30-471E49B51F61.jpeg
D0EBC973-9A06-4C07-9E74-09219D4DFE97.jpeg
D0EBC973-9A06-4C07-9E74-09219D4DFE97.jpeg (21.23 KiB) Viewed 1232 times
Geoff Van Horn

Former Alaskan living in rural Wisconsin

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pilgrim
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Re: New torbernite specimen with spectrum

Post by pilgrim » 08 Feb 2020, 23:00

Nice sample! What about weight and count rate ?
Daniel, Italy

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Geoff
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Re: New torbernite specimen with spectrum

Post by Geoff » 09 Feb 2020, 05:34

With my Ludlum model 18 and a gm probe adjusted for 0cpm background, My Feb 2015 1uCi 133Ba source reads 0.5mR/hr. The torbernite reads 300mR/hr. Weight is around 90 grams.
Geoff Van Horn

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Go-Figure
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Re: New torbernite specimen with spectrum

Post by Go-Figure » 17 Feb 2020, 01:48

That's a nice looking sample!

Massimo

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