Strong's Concordance G5191

Original Word: ὑακίνθινος
Transliteration: hyakínthinos
Phonetic Spelling: hoo-ak-in'-thee-nos
[ὑακίνθινος] from G5192; "hyacinthine" or "jacinthine", i.e. deep blue

Usages throughout the bible

Revelation 9:17 - And thus I saw the horses in the vision, and them that sat on them, having breastplates of fire, and of jacinth, G5191 and brimstone: and the heads of the horses were as the heads of lions; and out of their mouths issued fire and smoke and brimstone.