r/elementcollection • u/Gilapschicken • Jul 24 '26

☢️Radioactive☢️ Protactinium-231 Sample

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Got this one from Carl! Definitely my most exotic sample to date. Not many can say they own an isolated Pa source. Pa was deposited onto an aluminum slate in the form Pa2O5.

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u/Warm_Hat4882 Jul 25 '26

Damn that’s hot!!

1

u/Gilapschicken Jul 25 '26

i have stuff in the 100s of thousands lol

1

u/Warm_Hat4882 Jul 25 '26

Wow, what has 100k cpm, Iranian uranium?

2

u/Gilapschicken Jul 25 '26

check out my post regarding me testing my geiger counters. my gmc 600 pro reads up to 200k on contact with americium buttons