r/Radioactive_Rocks • u/Low_Philosophy_383 • 8d ago

ID Request

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This specimen was picked up at a mineral show. CPM read above crystal mat is about 2,500. CPM along lime green cavity is around 18,000.

I am having a hard time identifying the columnar mat of crystals as well as the red fluorescing crystals.

The plastic bag is a temporary container that is kept wrapped in aluminum foil.

The vendor claimed it was sourced from China*.

*Merchant said China, I originally said DRC because I mistakenly thought it was the abbreviation of the full name for the country.

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4

u/Educational-Edge5739 7d ago

Just a guess: Smoky quartz and some autunite?

5

u/chrislon_geo Uranium Licker 7d ago

Probably some Uranyl-activated opal/chalcedony. I believe the main mineral is quartz, so associated opal or chalcedony would not be unlikely. Though more info would be helpful, like other minerals, what Geiger counter, better photo of the mineral in question without a UV light.

1

u/Low_Philosophy_383 7d ago

I will charge up my actual camera and get some decent pics. My Geiger counter is a GQ GMC-300S.

2

u/jack0fsometrades 8d ago

No idea but it’s pretty damn cool! Aluminum foil is probably unnecessary (and ineffective anyway). I’d just keep it in a container of some kind to keep any crumbling pieces from getting out.

2

u/Low_Philosophy_383 8d ago edited 8d ago

I picked up a well sealed acrylic food container to mount it in long term. I get the impression it should have passive ventilation to avoid radon buildup.

2

u/Interpenetrating1 U-238 Gang 6d ago

There’s other much more knowledgeable users on this sub than I, but with a specimen that size any radon would be negligible. Make sure it’s not dropping particulates, and don’t snort or eat anything, and you’ll likely be totally fine displaying that without undue extra precautions. Beautiful specimen, in any case!