Schiller /(?)/

Schil·ler

Schiller

n.
  1. The peculiar bronzelike luster observed in certain minerals, as hypersthene, schiller spar, etc. It is due to the presence of minute inclusions in parallel position, and is sometimes of secondary origin. (Min.)

Phrases & Compounds
Schiller spar
an altered variety of enstatite, exhibiting, in certain positions, a bronzelike luster.