Five 20ml microwave crucibles made of compound quartz fibres, 1994 Five 20ml microwave crucibles made of compound quartz fibres 1994
Two crucibles, Royal Worcester Porcelain sizes 1B and 2B, and one lid of a different size (OB?) Two crucibles
Crucible and bottle containing crystals of rubies associated with Verneuil Crucible and bottle containing crystals of rubies associated with Verneuil
one ceramic crucible, has molten coating on outside, and a white coating on the inside. manufacturer unknown Ceramic Crucible
Crucibles used in the manufacture of superconducting crystals, presented by the Department of Physics at Oxford University, 1996 Crucibles used in the manufacture of superconducting crystals
Three pieces of crucible from Bagot's Park glass furnace site, early 16th century Three pieces of crucible from Bagot's Park glass furnace site 1500-1550