hematinon

from The Collaborative International Dictionary of English v.0.48

Hematinon \He*mat"i*non\, n. [Gr. a"i^ma, a"i`matos, blood.]
   A red consisting of silica, borax, and soda, fused with oxide
   of copper and iron, and used in enamels, mosaics, etc.
   [1913 Webster]