r/elementcollection
▲ 52 r/elementcollection
White phosphorus chemiluminescence!
This video was recorded in our lab with a macro camera on high aperture. Hope you guys enjoy it!
EDIT: I'm posting a picture of the sample with the light on in the comments!
u/theperiodicmuseum — 7 days ago
▲ 72 r/elementcollection
Piece #37, Pure Niobium Möbius Ring,handcrafted in my workshop
Eight years ago(2018), a Chinese student left a comment on my page asking: *"*Could you make a Möbius ring out of pure niobium or tantalum?"
Back then, I was already running a workshop focused on corrosion-resistant metals jewelry for over 5 years, but pure niobium (#41) turned out to be an nightmare to shape into a Möbius form. Niobium is notoriously "gummy" to work with, it sticks to cutting tools, tears easily, and very hard to polish to such a mirror-like surface. it take me 8 years to find a way to make this ring. ( together with tantalum)
u/Captain_Iridium — 8 days ago
How hard is getting cinnabar?
I always had a fascination with the element mercury, and I always wanted a sample of it. I think cinnabar is the safest form of it, since it's in a solid form. It also looks red, which is a pretty color. I have seen some sellers of it online. Have you obtained cinnabar before, and was it that difficult? I'm fine even if the sample is small.
u/Strontinate38 — 6 days ago
▲ 23 r/elementcollection
promethium metal
Two high resolution pictures of pure promethium metal, along with a link of a document (dated 1969) on the preparation and density determination.
u/--Mulliganaceous-- — 6 days ago