amethyst
/ˈæm.ɪ.θɪst/noun
Definition
A purple or violet variety of quartz, used as a gemstone. The twelfth stone in the high priest's breastplate.
Modern Equivalent
purple gemstone
Usage Notes
Part of the priestly breastplate and the twelfth foundation of the New Jerusalem.
Example Verse
“And the third row a ligure, an agate, and an amethyst.”Exodus 28:19