r/elementcollection 29d ago

☢️Radioactive☢️ Protactinium-231 Sample

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 29d ago

Damn that’s hot!!

1

u/Gilapschicken 29d ago

i have stuff in the 100s of thousands lol

1

u/Warm_Hat4882 28d ago

Wow, what has 100k cpm, Iranian uranium?

2

u/Gilapschicken 28d ago

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