This genuine stone with the Hebrew engraved name of the tribe of Israel may
have been similar to the ancient stone on the breastplate of the high priest.
====Strongs Definition====
Heb. Achlamah
Violet blue
306 'achlamah (akh-law'-maw);
perhaps from 2492 (and thus dream-stone); a gem, probably the amethyst:
KJV-- amethyst.
BENJAMIN