Strong's #5192: huakinthos (pronounced hoo-ak'-in-thos)
of uncertain derivation; the "hyacinth" or "jacinth", i.e. some gem of a deep blue color, probably the zirkon:-- jacinth.
Thayer's Greek Lexicon:
̔́
huakinthos
1) hyacinth, the name of a flower, also of a precious stone of the same colour, a dark blue verging on black
Part of Speech: noun masculine
Relation: of uncertain derivation
Usage:
This word is used 1 times:
Revelation 21:20: "a chrysoprasus; the eleventh, a jacinth; the twelfth, an amethyst."