Carnelian sandwich!

Carnelian is a semiprecious stone that is a variety of chalcedony, a silica mineral. It is a brownish-red to reddish-orange color, and is often confused with sard, which is usually darker and harder.

Color
Brownish-red to reddish-orange
Composition
Silicon dioxide with iron oxide
Uses
Jewelry, engraving stones, signet rings
History
Prized in Crete, Central Asia, and the Far East since ancient times
Symbolism
Ancient Egyptians saw it as a symbol of life