#uranyl
The radioactive, hydrated copper uranyl phosphate Torbernite, from the Musonoi Mine, Katanga, Democratic Republic of Congo.

📷 Nunzio.j

#minerals #geology
March 23, 2026 at 10:17 PM
Found this tiny piece of uranium glass on the beach. The amazing green fluorescence under the blacklight is unrelated to its radioactivity. It is caused by an electronic transition in the linear uranyl [O=U=O]2+ group; the most common structural feature of uranium in it highest oxidation state. 🧪
April 3, 2026 at 10:42 PM
Kaffee – ein vielseitiger Ersatz für Uranylacetat beim Färben biologischer ultradünner Schnitte für die Elektronenmikroskopie
Coffee – a ubiquitous substitute for uranyl acetate in staining of biological ultrathin sections for electron microscopy studies
The use of uranyl acetate, a staining agent successfully used for decades in electron microscopy of biological specimens, is now strictly regulated by…
www.sciencedirect.com
January 9, 2026 at 3:41 PM
Uranyl hydroxide - Wikipedia
en.m.wikipedia.org
May 27, 2025 at 3:26 AM
www.mineralcollection.eu/product/2305...
Gummite and autunite from Tragos, Tavares, Portugal
Green fluorescent under both LW and SW
23 mm x 18 mm excl. box
8 gram incl. box
€ 15
#gummite #autunite #uranyl #tragos #portugeseminerals #minerals #rocks #crystals #stones
May 12, 2026 at 6:55 PM
Two kilograms of uranyl sulfate in a Mallinckrodt jar dated 1954.
August 30, 2023 at 10:26 PM
Also in the theme of other pretty rocks that I don't own anymore, some rare tetragonal Torbernite from Majuba Mountain Mine.
Copper Uranyl Phosphate
Cu[(UO2)(PO4)]2(H2O)12
July 11, 2026 at 5:13 AM
uranyl nitrate probably. we love to see it lol
February 28, 2025 at 11:38 PM
A quick summary of the art from today's stream:
* Praseodymium(III) Selenate
* Praseodymium-145
* Praseodymium(III,IV) Oxide
* Uranyl Selenate
* Platinum Diselenide/Sudovikovite
* Platinum(II) Acetate
* Cobalt(II) aluminate/Cobalt blue

#art #artsky #ingenerumart
June 15, 2026 at 10:06 AM
Fun fact: depleted uranium is stored as uranium hexafluoride in huge cylinders.

When exposed to moisture in air, it decomposes into hydrogen fluoride and uranyl fluoride.

There being no long-term storage site, it's all just locally stored on site for now, everywhere.
April 7, 2024 at 11:56 PM
September 26, 2026 at 8:22 AM
The closest approx would be uranyl peroxide hydrate. It’s a more soluble uranium compound that labs use a proxy for uranium contaminant transport when studying groundwater contamination
May 27, 2025 at 12:31 AM
It's the 2nd of January, which means hangovers are clear and a certain mindset says this is when spring (or any) cleaning begins. Which is why I just got a text message asking "Phil, is uranyl zinc acetate radioactive? Friend found an ancient stock bottle."

[sighs, turns off vacation alert]
January 2, 2024 at 6:22 PM
big eyes, sopping wet. with 1.5% uranyl acetate
September 20, 2026 at 3:16 PM
Nice UO2(NO3)2 (uranyl nitrate) crystal by @simonschemie.bsky.social, "almost 2cm !"

#abandonolysis #chemsky

@chemunicologne.bsky.social @unicologne.bsky.social 🧪
May 15, 2025 at 3:28 PM
www.mineralcollection.eu/product/2279...
Torbernite from the Lawson Mine, Spruce Pine, NC, USA
5 cm x 3 cm excl. box
44 gram incl. box
€ 40
#torbernite #uranyl #phosphates #lawsonmine #northcarolinaminerals #usaminerals #minerals #rocks #crystals #stones
April 17, 2026 at 5:17 PM
Cocoinoite is such an underrated species — that uranium-phosphate chemistry is wild. The yellow comes from the uranyl ion (UO₂²⁺), same chromophore behind autunite's glow. Gorgeous focus stack, the crystal habit really comes through.
September 25, 2026 at 4:21 AM
The previous images were unstained.

Better images can be produced with contrast agents, like this negative stain with uranyl formate, and with higher resolution SEM.
November 2, 2023 at 11:27 PM
Just look at this beauty! This is autunite, a hydrated calcium uranyl phosphate #mineral (Ca(UO2)2(PO4)2·10H2O for you purists) under UV light. This sample is from Cornwall (UK), a secondary mineral from pegmatite-associated uranium. I had fun teaching our 3rd year Bristol geologists today! ☢️😁
February 3, 2026 at 8:46 PM
Photocatalysis, C-H activation, f-block chemistry; there's something for everyone in our newest article in collaboration with the Arnold Group!

See how we made uranyl oxo photocatalysis site-selective in JACS: doi.org/10.1021/jacs.6c01402
Uranyl Tris(benzoate) Photocatalysts for Site-Selective Hydrocarbon Functionalization
The uranyl dication ([UO2]2+) is a highly active photocatalyst for the functionalization of inert Csp3–H bonds by direct hydrogen atom abstraction (HAA). However, photocatalysis by the uranyl ion rema...
doi.org
May 26, 2026 at 6:06 PM
Uranyl nitrate - Wikipedia
en.m.wikipedia.org
May 21, 2024 at 2:22 PM
Alternatives for Uranyl Acetate Negative Staining With Respect to the Resolution Obtained After Single Particle Analysis of Erythrocruorin pubmed.ncbi.nlm.nih.gov/40165377/ #cryoem
April 3, 2025 at 4:54 AM