Zinc (Zn)
Purity = 999 metal powder
Image taken with 35mm camera with a 135mm lens, set at macro for close-up focusing, shutter speed = 1/250th of second in bright sun using 200 film and developed by Kodak 1 hour commercial labs and then digitized.
The metal powder melted and coalesced into single mass and is obviously volitale due to abundance of colored sublimates (oxides), However, the mass of molten zinc was blown out of the cavity meant to contain it.

Image created with B&L SZ5 microscope @ 40 power, coupled to a ccd camera and computer.
Sublimate colors shown here are not accurate due to light source intensity and the focus is on the zinc not sublimates.