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The old timers were mining gold in a uranium & radium rich area. It is the dump site for the mine. It’s the hottest site I’ve found along the Front Range of Colorado. You don’t values like that until the Four Corners area of CO, UT, NM, AZ.

@@brianwalko Thanks for the information! I uploaded a new video (Short) on my channel and as you can see I found radium slag with approx. 36k CPS and my Geiger Counter has already reached the measurement limit of 1 mS/h. And then I watched this video here. These are extreme values, if they are correct.

Sorry, tellurides have no radiation. Also, metal detectors will not work. You need an XRF gun with the light element module and possibly have a local university XRD the sample.

Field identification is the key to success. I carry a small sample box of different tellurides I found or purchased for ID purposes.

Did you have a midwave UV light? In certain spots, the whole ground lights up green and red.

Hi Dawa, In this video I'm using a Ludlum 3000 meter with a Ludlum 44-2 detector. It's a professional setup that costs about $3000. Another option is to purchase a GQ GMC-600+, for $360. It is almost as accurate as my Ludlum, but it is made of plastic. So you will have to be careful in the field. Another detector I'm interested in is a Radicode 103. It is only 300 Euros. I hope this helps. Happy collecting. -Brian

Thanks a lot, Brian@@brianwalko

The Super-Spec RS-125 is a good option for prospecting. I'm not sure what the price is however, maybe $5000. You have the option to assay or survey with it (bluetoothed to a GPS). It's very rugged and light.

Yes, the activator is Mn 2+. Slightly phosphorescent under MW. Calcite is a dull red-orange under LW & SW.

@@EarthExtractions nice!

Are you using a longwave or shortwave UV light? The majority of fluorite reacts to longwave. Very few specimens react to shortwave. I have some deep dark blue fluorite in my collection that does not fluoresce. My best specimens are the lighter green color fluorite.

@@EarthExtractions I use both long and shortwave lamps, the latter for scheelite prospecting. The activator for blue fluorescence is Europium and for yellow it can be one of several REEs, so perhaps that mine in Morocco has no trace REE content. The dark blue "Blue John" from Derbyshire is also non-fluorescent, but perhaps it is too opaque as you say.

Nope. It was to darn bright in this mine, even for my Convoy C8.

A few micro diamonds less than 1mm in size. Nothing of commercial value, yet.

No video. Just safely burn the straw. Also did out the gravel in front and pan both of them.

Hi Muonium, I have about 20 hours of field use with my Engenious Designs C255-4 SW LED flashlight. I have not noticed any degradation in output. My colleagues in the Fluorescent Mineral Society are very happy with it. I ordered mine with the Hoya filter good for 3000 hours. The flashlight does get warm around the heat sink area. But it is not a problem for me because I'm rotating between a Convoy C8 LW and a regular LED flashlight. The other vendor, Way Too Cool does not have their fan cooled SW LED on the market yet. If you have ~$450 USD to spend, I would highly recommend the C255-4. www.engeniousdesigns.com/product-page/c255-4-high-power-shortwave-uvc-flashlight-pre-order Best regards, Brian Walko

@@EarthExtractions Damn. I was really hoping you'd say it was giving you trouble and isn't ready for the retail market yet so that I could write it off as a possibility and stop thinking about it. But I'm headed down to the big "ultraviolation" fluorescent show in New Jersey next weekend, I hear Engenious Designs will be there, and now I seriously doubt I'll be able to resist buying!! 🤣 The number of things that fluoresce and brilliantly phosphoresce at liquid nitrogen temperatures under UVC like water ice, paper, sugar, many plastics, etc. is just incredible, and to have an LED source of that high energy light that I can turn on and off many times rapidly is a game changer. Many thanks for your time sir.

Sorry, the land is private now. Owner CROWN MINING LLC, Lakewood, CO

Lucky!

You do the heavy work, I'll do the cleanup.

Aeschynite-(Y)

I would first test to see if it is radioactive. REE are not very "Hot". Three or four times above background. Second, take your piece to a local college, university, or geology museum. They should have an XRF analyzer (X-ray fluorescence spectroscopy) or an XRD analyzer (X-ray diffractometer). These instruments will give you the chemical composition of your metal. Good luck. -Brian

Yes, in a pegmatite zone. The (Y) = Yttrium. Atomic # 39. Thus a light REE.

Great. I want to prospect around the base of the Pyror Mtns. south of Billings for some Tyuyamunite.

@@EarthExtractions oh yes! Ive been meaning to go there too. Its just so remote. And ive heard the forest service and blm covered up a lot of the old workings.

The straw did not capture any gold. However, it slowed down the current and created a gravel pile that did have some flower gold. Unfortunately, in my part of Colorado, flower gold is all that I find. I now have multiple traps set in intermittent streams and will check next year. Hopefully one of them will be a producer worthy of panning.

Two more videos in the queue.

Still lots of stringers in the tailings.

The old CDV-700s will detect uranium. Have you tested the detector with a sample piece of uranium?

@@EarthExtractionsyes I have fiesta ware and the has uranium in the glaze it's just the probe I wish they made a cross between the cdv-700 and cdv-715 one with a built in Muller tube like the lucky strike

@@EarthExtractions I have a question what is the best place to look for uranium in southern California

@@ethansav0892 Start your search on mindat.org Then lookup uranium. Scroll down to Deposits of Uranium (map). There appears to be nothing in the SoCal area.

@@EarthExtractions okay thank you

Yes! Not at this location, but close by.

@@brianwalko in boulder?

@@devanh8592 In Boulder County

Buy some UV-C Protection Glasses. Make sure they cover the sides too.

Greetings, Sorry for the delay, I'm at the Tucson G&M show. The industry standards for determining gamma radiation counts are the Ludlum Model 3000 Survey meter connected to a 44-2 scintillator. You can get a new Ludlum analog meter for about $700 and a 44-2 scintillator for $700. They are cheaper used on eBay. Some of my prospecting colleagues use the Exploranium SAIC GR-130/GR-135. New about $2400, but you can find used ones on ebay for $1000. Do not buy anything made in China or the Ukraine. Stick with good ol' "Made in the USA" products. When checking scrap metals for radiation contamination (i.e, oil drill stem pipe) , gamma detection is all you need. Don't get a Geiger-Muller tube detector, get a scintillator for sensitivity. When I prospect for for radioactive & rare earth minerals I keep my Ludlum at waist height. It works fine. Note: When handling radioactive materials NEVER breathe any dust or ingest any particles. Always double wash your hands and dry them with a paper towel. Check out my Radioactive Mineral Prospecting Equipment (th-cam.com/video/7gYrk6VVK3w/w-d-xo.html) Good luck.

Also, go to my FB page (facebook.com/earth.extractions/) and scroll down to Jan 24th to see some really "hot stuff" All safety precautions were taken at this old uranium mine site.

Good idea Hector. It will be a good winter activity now that my claims are under 2-3ft of snow.

I always carry a Convoy S2 Long Wave because it is small and powerful. But that will only work with minerals that fluoresce under long wave and a few mid wave. For short wave minerals I use a Way Too Cool 18 watt Dual short/long wave DC. I turn the long wave off to save battery life. You can find both lights at: www.fluorescents.com/index.html

Just posted a new video: th-cam.com/video/oJ1Cvnfx-ms/w-d-xo.html

A saw at the end you were in boulder county, I missed that the first time. I'm just a hobbyist so I am not trying to mine large amounts just different small samples from around the state to add to my mineral collection.

@@CovertGamingET Greetings Fellow Radhound. I haven't explored the Springs area. But, check out this USGS Publication: GEOLOGY OF URANIUM DEPOSITS IN THE FRONT RANGE, COLORADO. It provides uranium areas in Jeff Co. Also, all the pegmatites in Jeff Co & Teller Co contain rare earth minerals which are on the "hot" side. pubs.usgs.gov/bul/1159/report.pdf

@@CovertGamingET If you are on FB, join my private Radioactive Rock and Mineral Prospectors group. facebook.com/groups/392055021278098/

@@brianwalko Thank you kindly for both of these resources. I will be joining the FB group. I am actually heading to Uravan, CO with my fiance this weekend to camp and explore the area/learn about the history there as well as search the surrounding areas for minerals, carnotite ore and possible leftover tailings from other mines in the area. I won't be trespassing or going on the superfund site. My Fiance works with the BLM, USGS, and Forest Service so I was lucky enough to have her get a map that shows what land I can go on legally along with my map of claims. Sadly my Ludlum Model 3 will not arrive until the end of the month so I will only be using the Terra-P dosimeter and the GQ GMC-320plus gieger counter. Would you happen to have any tips on locating radioactive minerals with very low accuracy devices? Again thank you kindly for the resources and link to the FB group

@@CovertGamingET Keep the detector as close to the ground as possible. Before I got my Ludlum, I duct taped by Digilert near the bottom of a hiking pole. Also, portable longwave UV flashlight helps for spotting autunite (fluoresces brilliant green) in the evening and at night. Have fun!

Greetings, I’m glad you like the video. Any Geiger counter can detect the gamma rays from thorium. I recommend using an isotope detector such as an EXPLORANIUM radiation identification device to be sure it’s thorium and not some other isotope. See one in action in my Radioactive Mineral Prospecting video. ( th-cam.com/video/g_e5bvnImnM/w-d-xo.html&feature=share ) Thx, Brian

Brian Walko ah yes. Ive seen that video. Do you have a favorite place to buy this kind of equipment?

@@ZE0XE0 I'm not sure. Try e-bay (used) or do a Google search. I know they are darn expensive. For my equipment, I use Ludlum Measurements (ludlums.com/). Good folks to do business with. They "might" have an isotope detector by now. It's worth a call.