[ὑάκινθος] of uncertain derivation; the "hyacinth" or "jacinth", i.e. some gem of a deep blue color, probably the zirkon
Usages throughout the bible
Revelation 21:20
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The fifth, sardonyx; the sixth, sardius; the seventh, chrysolite; the eighth, beryl; the ninth, a topaz; the tenth, a chrysoprasus; the eleventh, a jacinth; G5192 the twelfth, an amethyst.
