נֹפֶךְ (nôphekno'-feknoun|masculineruby)
[Heb] נֹפֶךְ, נׄפֶךְ ETCBC: נֹפֶךְ‎ (subs|turquoise) OSHL: n.ej.aj TWOT: 1391 GK: H5876 Greek: ἄνθραξ
Derivation: from an unused root meaning to glisten;
Strong's: shining; a gem, probably the garnet
KJV: emerald.