Also see definition of "Hyacinth" in Word Study
HYACINTH [smith]
used in the Revised Version for jacinth in (Revelation 9:17) It is simply another English spelling of the same Greek word.HYACINTH [isbe]
HYACINTH - hi'-a-sinth (huakinthos): the Revised Version (British and American) uses this word in Rev 9:17 for the King James Version "jacinth," with reference, not to stone, but to dark-purple color. In Rev 21:20, where stone is meant, the Revised Version (British and American) translations "sapphire."
Also see definition of "Hyacinth" in Word Study
