This is a lovely sealed ampule containing one gram of rubidium metal. I have used my hot photographic light to partially melt the contents (which was foolish and dangerous of course). There's just something fascinating about a liquid metal! This one forms a nice mirror on the surface of the ampule if you shake it. It makes a very nice set together with the very similar cesium ampulealso from David Franco.
I chose this sample to represent its element in my Photographic Periodic Table Poster. The sample photograph includes text exactly as it appears in the poster, which you are encouraged to buy a copy of.
Source: David Franco
Contributor: David Franco
Acquired: 10 July, 2003
Text Updated: 4 May, 2007