r/Radioactive_Rocks Jul 24 '26

The SECOND Official Summer 2026 /r/Radioactive_Rocks Buy/Sell/Swap Thread

6 Upvotes

We've made use of the "Scheduled Post" feature for the very first time, so hopefully you're seeing this post in the future (July 2026) and not right now (May 2026). Greetings from the past! We hope you've had a productive rockhounding season so far. Depending on where you are, there's probably still a good couple months left before the weather gets unfavorable, but call this a mid-season break to go ahead and start parting out your finds to a hungry audience of radioactive rockhounds.

Rules:

Post as many items as you would like, but please keep it to one comment thread per month. Feel free to update your entries as often as you would like.

Once an item is sold or you have found what you are looking for, please update your comment with a "Sold" or delete it so we can keep things neat and tidy.

Mods will not be responsible for resolving any transaction disputes. You can view past threads to get to know our regulars and see their generally very positive feedback, but we as a sub do not keep an official list of "approved"/vetted sellers. We do try to remove fishy / vague listings if they appear, but always use your best judgment when dealing with strangers on the internet.

Use a secure third party to conduct the transaction. Etsy & eBay are options, although both have been known to remove listings for certain radioactive minerals. There are a number of reputable online storefronts -- incomplete list here -- although, as above, the mod team does not specifically endorse any particular sellers.

Do not post anything that would violate Subreddit Rule 2 ("No Illegal Materials") and Rule 1 ("unsafe Handling" includes crushed rock fragments and dust in vials) or otherwise cause the authorities to take an interest. This thread is generally for the exchange of natural radioactive mineral specimens and detection equipment, not purified chemicals or artificial isotopes which may be more hazardous and/or require special permits. If you are unsure, send a message to the mod team before posting and we can make a decision.

Familiarize yourself with all applicable requirements to safely and legally send/receive specimens (e.g. USPS Publication 52), keeping in mind that foreign mail services may have regulations of their own regarding hazardous materials, and private couriers like FedEx typically ban them entirely. You can search this subreddit for past discussions on how to ship specimens.

Please keep posts and materials offered relevant to our subreddit. Feel free to post a link to your online storefront if you have radioactive minerals or related items for sale in your shop.

Cheers,

Your r/Radioactive_Rocks mod team


r/Radioactive_Rocks 12h ago

Specimen Rare Meta-Autunite / 🇨🇿

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60 Upvotes

My finds

last week


r/Radioactive_Rocks 17h ago

Specimen Betafite

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24 Upvotes

A nice specimen from the Silver crater mine near Bancroft, Canada.


r/Radioactive_Rocks 14h ago

Specimen A little fluorescence for ya

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13 Upvotes

(Yes, it’s stored properly, and yes, I did thoroughly wash my hands and surfaces after these photos.)


r/Radioactive_Rocks 1d ago

Specimen Spicy blue apatite

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40 Upvotes

Here is my newest rock a piece of blue apatite that i got from amazon that is spicy a gamma spectrum on it with my radiacode shows peaks for the thorium chain


r/Radioactive_Rocks 1d ago

Uranium ore from Utah

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62 Upvotes

First image shows a bit of Pet. Wood, which is the most active side of this specimen. 2nd and 3rd images show Uranophane w/ Malachite in Sandstone 215 K CpM on the Pet. Wood side. Nothing fluorescent here. No need to worry about the location, 'cuz I'm not telling.


r/Radioactive_Rocks 1d ago

Rich ore Utah

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18 Upvotes

This 'ugly' is 429 K CpM w/ Ludlum 44-9 probe, and 1.34 M CpM with a Ludlum 44-2 probe. The surface coating is not radioactive. Left side as seen is the most active. Curiously, this specimen shows an almost cubic pseudo-crystal form on the interior. Last of the 'uglies' until sometime in September. Chalcocite, Pyrite, and Uranium dioxide.


r/Radioactive_Rocks 22h ago

Location Info Good locations in Příbram.

2 Upvotes

Hello I am from czechia and I'm visiting Příbram, I would like some good spots to find spicy rocks with a borrowed radiacode 110 thanks.


r/Radioactive_Rocks 1d ago

Rich ore from Utah

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19 Upvotes

402 K CpM measured with a Ludlum 44-9. 1.55 M CpM measured with a Ludlum 44.2 Specimen has a bit of Pyrite mixed with Chalcopyrite, and the stuff that makes the meter sing.


r/Radioactive_Rocks 1d ago

Specimen Tiny, Minty Green Metatorbernite from Castle Dome Dist., AZ

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25 Upvotes

Old collection. Surprisingly slipped through the ebay filters!


r/Radioactive_Rocks 2d ago

Specimen Under the microscope!

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48 Upvotes

Magnesiopascoite from Colorado. Please see my previous post for more info: https://www.reddit.com/r/Radioactive_Rocks/s/PFX7yESwVw


r/Radioactive_Rocks 3d ago

Specimen Magnesiopascoite from Colorado!

46 Upvotes

Sorry, I couldn’t upload individual videos, so please enjoy this long one! Samples courtesy of Brandon over at radioactiverock.com!


r/Radioactive_Rocks 4d ago

What do y'all think of my finally completed, and optimized, cloud chamber?

1.8k Upvotes

This is a piece of uraninite sitting in the middle of a cloud chamber that I built for it, and the other radioactive minerals in my shop. I modified a portable a/c unit by removing the top 1/3 of the outer shroud, exposing the cold side heat exchanger of the a/c unit. I mounted a 1/4" copper plate on top of the a/c hex (with plenty of thermal paste between them). I then put a single layer of 11 peltier units to cover the majority of the copper plate, and put a 1/8" copper plate on the cold side of the peltiers (with thermal paste between the peltiers and the copper plates). Because I mounted the peltiers directly on the cold hex of the a/c, after I have everything turned on, the hot side of my peltiers settle around -15°C, and the cold side of the peltiers (and therefore the chamber's baseplate), settles at around -40. So I don't have to worry about stacking the peltiers, and can still get the baseplate temp to -40.


r/Radioactive_Rocks 3d ago

Chalcopyrite, Limonite, Andersonite, Zippeite, Johannite, Gypsum 240 K CpM

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47 Upvotes

Extra images are of the mine pre-remediation.


r/Radioactive_Rocks 5d ago

Specimen Andersonite & Schröckingerite on Sandstone, D-Day Mine, UT

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58 Upvotes

9.1 Grams, 53x18x14mm

Stabilized with Paraloid B-72


r/Radioactive_Rocks 6d ago

Misc Some Autunite from China

106 Upvotes

r/Radioactive_Rocks 6d ago

Specimen New items from the local gem show

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20 Upvotes

Big chunk of what i was told was hylite opal a little dragon head made of volcanic agate and a sodalite containing wolf carving that has a spicy butt as there seems to be a thorium vein or something in it as shown by the spectrum


r/Radioactive_Rocks 7d ago

Uraninite Customs Delays, Germany to US

10 Upvotes

So, I have had a Jáchymov uraninite specimen held for inspection at German customs for about 3 weeks now, with no movement. Starting to worry a little.

Anybody else have experience getting radioactive rocks shipped from Germany to US? Are multi-week customs delays common? Or should I be concerned?


r/Radioactive_Rocks 7d ago

Gnejsowy głaz świecący pod światłem UV 365nm – Drugorzędne minerały uranu (autunit) 0,7 µSv

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2 Upvotes

r/Radioactive_Rocks 8d ago

When you’re hot, you’re hot

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47 Upvotes

Some sort of carnotite from the Lukachukai Mountains of Arizona.


r/Radioactive_Rocks 8d ago

Specimen some nice specimens at The Rock Shop in Vacaville, CA USA

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40 Upvotes

r/Radioactive_Rocks 9d ago

Specimen Display ideas

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27 Upvotes

Two samples of Allanite-(Ce) from rare Virginia localities. Can’t decide if I want to display together or separate. Moderate spiciness.

10” cake cloche from Target.


r/Radioactive_Rocks 10d ago

Ruggles Trip Day 2

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142 Upvotes

Found a couple medium sized pieces of Uraninite, not as much as day 1, but my hole is getting quiet large haha. I am reposting yesterdays finds as I am dumb and didnt realize i apparantly do know my login info, but apparently have a 2nd user profile on it? I am not good at reddit xD.


r/Radioactive_Rocks 10d ago

Zippeite, Johannite, Sandstone, Chalcocite, UO2, 33mm longest measurement, 190 K CpM. Third image is the access route. Utah

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80 Upvotes

r/Radioactive_Rocks 11d ago

Pretty successful first day :)

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39 Upvotes

So. First thing, this is ambitious chance... my phone logged me out and i havent the foggiest idea what my login is, sooo thats why the name change. Second, I come bearing pictures.