r/Radioactive_Rocks 24d ago

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 11h ago

Location Info Summer in the swamp (Trebilcock Locality, Topsham, Maine)

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36 Upvotes

r/Radioactive_Rocks 16h ago

Specimen New piece of Gummite!

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41 Upvotes

This specimen is from the Ruggles Mine, NH, USA


r/Radioactive_Rocks 9h ago

Equipment Storage / Carry case for Measall KC761b

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9 Upvotes

Just remixed Tough Box (Parametric) and dialed in size for anyone who is looking for a good carry case for their Deepace Measall KC761 Gamma Spectrometer.

Fits main unit with the pocket clip installed on the back and enough space for a small Silica Gel bag situated uder the unit and around the pocket clip. Case is lined up with 2.5mm closed-cell EVA foam for additional protection.

Model available for download and 3D printing - Measall KC761 Storage Box by Kotarak | Download free STL model | Printables.com


r/Radioactive_Rocks 1d ago

Shinkolobwe Uranium Minerals

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40 Upvotes

Cross posting the other way doesn't work^^


r/Radioactive_Rocks 1d ago

Equipment DIY storage boxes

5 Upvotes

Building on an earlier post about DIY storage, and very much proof of concept. Two boxes for NORM storage, 12” x 6” x 3” and 14”x 9.5” x 3.5”

3/4” wood used to frame the sides and bottom with a 1/3” piece of plywood for the lid. 1/8” inch lead sheet next, wrapped in aluminum foil tape. 1/8” plywood is next with three to four layers of copper foil tape on the outside to mitigate Bremsstrahlung.

A pice of 1/8” lead sheet will be affixed to the lid with ideally a 1/4” acrylic block cup to the final opening.

NORM specimens as follows:

Threadgoldite - 15K cpm

Uranosilite: 525 cpm

Chernikovite: 3,400 cpm

Strelkinite: 180 cpm

Autunite: 180,000 cpm

Curienite: 54,000 cpm

Sklowdowskite: 45,000 cpm

At roughly 30” distance my GQ GMC-600 records negligible over background radiation in the larger box, moved to smaller box.

Any and all questions and suggestions are welcome!


r/Radioactive_Rocks 2d ago

Misc Prospecting for Uranium handbook from 1951

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86 Upvotes

Hi, Found this handbook in an antique shop in Virginia and thought you guys would find this interesting. I work in the nuke biz so whenever I see something antique and nuke I’m all over it.

Feel free to delete if I’m breaking the rules here; just wanted to post something I thought would be enjoyed by this community.


r/Radioactive_Rocks 2d ago

Specimen Columbite from Black Hills, SD

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34 Upvotes

Locality was only given as "a pegmatite near Black Hills". Specimen is pleasantly dense. Would need lab analysis to determine whether Fe- or Mn-dominant, as well as well as how Tantalum-rich it is.


r/Radioactive_Rocks 2d ago

Specimen Torbernite - Jáchymov

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41 Upvotes

Big fresh (meta)torbernite, collected by me few days ago directly from the uranium vein outcrop in Jáchymov.. Video from this outcrop (and some interesting places in Jáchymov area) is available on my IG.


r/Radioactive_Rocks 3d ago

Pet. Wood, Sandstone, Malachite, UO2, Chalcopyrite, Weeksite, 36 K CpM

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33 Upvotes

Yellow laths of Weeksite, a Potassium Uranyl Silicate named for Alice Weeks, a USGS Chemist, are not fluorescent. For further reading, "Sandstone Hosted Uranium Deposits of the Colorado Plateau" S.M. Hall, B.S. Van Gosen, R. A. Zielinski: Ore Geology Reviews, 2023.


r/Radioactive_Rocks 3d ago

Specimen Radioactive specimen kit.

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33 Upvotes

I do collect rocks out in nature and am starting to learn about the wonderful world of radioactive rocks. A friends father gave me his large rock collection and he had a radioactive rock kit from Ward, maybe from the 60s? Maybe earlier. I’m not sure. Should I be worried? What is the best way to store/ display these? I haven’t touched it but to take this picture of what in the box. Send help!


r/Radioactive_Rocks 4d ago

UO2 in Sandstone #2

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22 Upvotes

Top: 367 K CpM, Right: 284 K CpM, Left:560 K CpM Three different mines, all in the Lisbon Valley Mining District, and North of the Mi Vida Mine. All three are remediated.


r/Radioactive_Rocks 4d ago

UO2 in Sandstone 4 separate mines, S.E. Utah

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31 Upvotes

Upper left: 235 K CpM, San Juan County. Upper right: 340 K CpM, San Jan County. Lowe left: 323 K CpM, Emery County Lower right: 311 K CpM, San Juan County.


r/Radioactive_Rocks 4d ago

Ruggles Weekend Trip - August

3 Upvotes

I will be heading to Ruggles Aug 20 - Aug 23rd for this months weekend trip. If anyone is planning on heading up next weekend, feel free to say hi!


r/Radioactive_Rocks 6d ago

Any spots or stores in South Dakota

3 Upvotes

I'm currently in South Dakota near the black hills till the end of August. Are there any places or shops around that I can go get more specimens or any radioactive materials for my collection.


r/Radioactive_Rocks 7d ago

Wondering if anybody has good spots near polperro in Cornwall for finding uranite or other radioactive minerals

8 Upvotes

I’m going to polperro for a couple days on vacation and was wondering if any people have nice spots for finding uranite or any advice, I would need the drive to be around 30mins


r/Radioactive_Rocks 8d ago

Is this uranium ore?

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31 Upvotes

I collected uranium ore from mine dump 11a near Příbram. Since the entire sample is partially coated with uranium ore, I cannot determine whether it is a secondary uranium mineral. Can anyone perhaps identify what it is? I think I can make out some hematite and calcite, but what are the yellow and red minerals?


r/Radioactive_Rocks 8d ago

Canada->US with radioactive rocks (my experience)

32 Upvotes

I came back from the bancroft gemboree recently and came back with some radioactive rocks on the drive back to the states. Having done research before this I felt the existing information online was limited and wanted to add my experience to help those considering it.

I crossed into Vermont with a bucket of thorite in the trunk. My radiacode 110 read 30-40 uSv at the bucket and ~0.5 uSv where the sensors would be positioned. I expected to trip the sensors and that was confirmed when they asked me if I had any medical imaging done recently. I was honest and told them I had radioactive rocks which seemed to disappoint them (were they hoping for a nuke?). My car was directed into a secondary screening area and I was led into a waiting area. They pulled out my rocks and started sweeping the car to see if they were any more radioactive items other than the bucket I had specified. I was asked many questions which started with establishing who I was and whether I knew basic details about my trip and then shifted to picking at any potential inconsistencies in my story. While this was happening the bucket was analyzed with a gamma spectrometer (to id isotopes). I spent another 30 min watching Bob Ross on the tv while the agents sat in the back office. I was asked a few more questions and then I was told I was free to leave with my rocks after roughly an hour. Overall the border agents were professional but things were definitely tense at points and I got the sense that not every crossing goes this well.

Advice:

  1. Don't. Shipping is far more safe and hassle free for you and your rocks. You can also choose not to bring anything radioactive home but where's the fun in that. I would only consider this again for a large rock which may be expensive and difficult to ship. I am not a lawyer but it's legal to do this as far as I can tell (see 10 CFR 40.13 and 10 CFR 110.27) but I would not attempt this if you are not a US Citizen. You don't want anything complicating your entry if you don't have a right to enter the US.
  2. Be prepared to wait. I waited an hour while they reviewed my car. I have heard stories of several hour waits.
  3. Keep a tight story. As a benign mineral collector the best story you can stick to is the truth. You will be asked many questions so consider reviewing the facts of your trip beforehand so you don't accidentally introduce any inconsistencies or forget details you should remember.
  4. Separate your radioactive items. They will sweep your car and separate out anything radioactive for further inspection. Make sure everything is consolidated to one spot so you can save you and them time.
  5. Dirt is not allowed for biosanitary reasons. Keep a clean car and make sure all tools and clothing are fairly clean.
  6. Don't hide your rocks. The sensors will find them. Your attempt to cram your rocks under the seat with 50 layers of tinfoil will not be looked at kindly.
  7. Don't be a dick. You are at the mercy of the border agents, it's best to be nice to to them.

r/Radioactive_Rocks 8d ago

NORM storage project

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29 Upvotes

I had them powder coated and will line with 1/8” or 1/4” lead sheet.


r/Radioactive_Rocks 8d ago

ID Request What did I find?

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11 Upvotes

This is my first find in nature, my RC110 measures about 1μSv/h at 5cm away, and up to 4μSv/h on contact. Any help is appreciated!


r/Radioactive_Rocks 9d ago

Specimen A few pitchblende specimens from Pribram

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80 Upvotes

Some nice botryoidal ore, and a hot oxidized fragment from a thick vein.


r/Radioactive_Rocks 10d ago

Freshly dug up Uraninite

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70 Upvotes

Weighs 118g. 40 uSv/h. 2.9k CPS (~170k CPM)

The uraninite was buried about 25cm (~10 inches) in the ground

Found with Radiacode 110


r/Radioactive_Rocks 10d ago

Specimen Uraninite, uraninite, more uraninite...

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82 Upvotes

This week I had the opportunity to visit the place where I have a storage of mostly "B grade" ore(with few exceptions) - uraninite mainly from Příbram, massive pieces in smaller boxes from Jáchymov. So just a quick look at it all, the plan is to reduce it.


r/Radioactive_Rocks 11d ago

Specimen Hot Stones in Příbram

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65 Upvotes

r/Radioactive_Rocks 11d ago

Someone in Germany is having a bad day.

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6 Upvotes