Colorado Rare Earth Minerals |
Colorado Rare Earth Minerals |
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![]() Rock Bar! ![]() ![]() ![]() ![]() Group: Members Posts: 898 Joined: 9-January 14 From: Denver, CO Member No.: 116,265 ![]() |
What time is it?.... IT'S XENOTIME!!!
![]() While we were diggin on the claim on Monday, my longtime friend (and co-owner) was getting into a nice pocket of gemmy smokies when he found a odd crystal we had never seen before. We suspected Zircon because of the crystal shape and it felt very heavy. After a specific gravity test it appears to be Xenotime. It is also on the heavy side of Xenotime which would suggest that the Yttrium in it has been replaced with a heavier mineral/element like Uranium or Thorite. It may have mild radioactivity. If I get the chance to test it for radiation I'll post results. If your wondering how to pronounce Xenotime here is a link with audio: Oxford Dictionaries The crew and I just before the rare find. (I'm on the left) -------------------- |
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Shovel Buster! ![]() ![]() ![]() Group: Members Posts: 171 Joined: 19-October 14 From: Denver Member No.: 118,315 ![]() |
I would like to make an update about the Xenotime crystal at the top of this post. After getting an X-ray refraction test at the Geology Museum, even the "experts" are having a tough time to identify this crystal.
It has the crystal structure of a Xenotime-(Y). And has the elements needed for that. But it also contains Thorium and abnormally high amounts of Cerium, Gadolinium, and Neodymium. Causing the "experts" to think that it may have various mixes of Monazite in it, or that it is mostly Monazite. But they admitted that even with the chemical data, they can't say for sure. But everyone agrees that it is a very rare, and an interesting find! The crystal (whatever it really is) will be displayed at the Geology Museum for the next year (in the rare-earth or Pike's Peak mineral display) at the Colorado School of Mines. I'm gonna go see it, and get some more pics of the crystal, and a pic of the chemical readout for ya'll. ![]() -------------------- Thankful member of COLORADO PROSPECTOR CLUB
Level 2 Joined Oct. 19th 2014 (pay member since Apr. 1st 2015) Referral code: DS531 "Like a fine gemstone, the mind is more beautiful when it is open and free to receive the light." - (Dave's ramblings 52 : 80 ) |
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#3
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![]() Rock Bar! ![]() ![]() ![]() ![]() Group: Members Posts: 875 Joined: 25-July 14 From: Westminster, CO Member No.: 117,949 ![]() |
I would like to make an update about the Xenotime crystal at the top of this post. After getting an X-ray refraction test at the Geology Museum, even the "experts" are having a tough time to identify this crystal. It has the crystal structure of a Xenotime-(Y). And has the elements needed for that. But it also contains Thorium and abnormally high amounts of Cerium, Gadolinium, and Neodymium. Causing the "experts" to think that it may have various mixes of Monazite in it, or that it is mostly Monazite. But they admitted that even with the chemical data, they can't say for sure. But everyone agrees that it is a very rare, and an interesting find! The crystal (whatever it really is) will be displayed at the Geology Museum for the next year (in the rare-earth or Pike's Peak mineral display) at the Colorado School of Mines. I'm gonna go see it, and get some more pics of the crystal, and a pic of the chemical readout for ya'll. ![]() Very cool and congrats! That's an awesome museum. I was just there a couple weeks ago. -------------------- Lifetime Member
opera non verba "All courses of action are risky, so prudence is not in avoiding danger (it's impossible), but calculating risk and acting decisively. Make mistakes of ambition and not mistakes of sloth. Develop the strength to do bold things, not the strength to suffer." ~Niccolò Machiavelli Ref Code: EM448 |
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Lo-Fi Version | Time is now: 18th July 2025 - 01:45 PM |