Lexical Definition

‎נֹפֶךְ‎ nôphek (no'-fek) emerald H:N-M
from an unused root meaning to glisten

emerald.

1) a precious stone in the high priest's breastplate
1a) perhaps an emerald, turquoise, ruby, or carbuncle
2) jewels imported from Tyre

See Greek: ἄνθραξ

Usage: 3 forms in 4 verses
Form Translated As     In Verse(s)
נֹ֥פֶךְ a turquoise Exod.28.18Exod.39.11
נֹ֔פֶךְ turquoise Ezek.28.13
בְּ֠נֹפֶךְ for turquoise Ezek.27.16

Brown-Driver-Briggs

‎נֹ֫פֶךְ‎ noun [masculine] a precious stone which Tyre gained by trade Ezek 27:16 (where ‎׳‎‎נ‎ doubted by Berthol, queried by Toy: Hpt), compare Ezek 28:13 (symbolic of wealth and honour of king of Tyre); in high priest's breastplate Exod 28:18; Exod 39:11. Perhaps = ruby or carbuncle ᵐ5 Joseph. ἄνθραξ, ᵑ9 carbunculus, compare DiEx KauEx SgfrEzek Co Berthol; ᵑ7 AV emerald.

Brown-Driver-Briggs References

Book Refs
Exodus 28:18 · 39:11
Ezekiel 27:16 · 28:13