Quick Definition
topaz
Strong's Definition
of uncertain origin); a gem, probably the chrysolite
Derivation: neuter of a presumed derivative (alternately) of (a "topaz";
KJV Usage: topaz
Thayer's Greek Lexicon
τοπάζιον, τοπαζιου, τό (neuter of the adjective τοπαζιος, from τόπαζος), topaz, a greenish-yellow precious stone (our chrysolith (see BB. DD., especially Riehm, under the word Edelsteine 18)): Rev_21:20 (Diodorus, Strabo; the Sept. for τΔΜθΐγΘδ, Exo_28:17; Exo_36:17 (); Eze_28:13. The Greek writings more commonly use the form τόπαζος).
Mounce Concise Greek Dictionary
τοπάζιον topazion 1x
a topaz, a gem of a yellowish color, different from the modern topaz, Rev_21:20
Abbott-Smith Greek Lexicon
† τοπάζιον , -ου , τό
(and τόπαζος , ὁ ),
[in LXX : Exo_28:17 ; Exo_35:17 ( Exo_39:10 ), Job_28:19 , Eze_28:13 ( H6357 ), Psa_119:127 ( H6337 ) * ;]
topaz: Rev_21:20 ( v. Swete , in l ).†
Moulton & Milligan — Vocabulary of the Greek NT
τοπάζιον [page 638]
a topaz ( Rev_21:20 ), a highly prized green stone : cf. Psa. 118꞉ 127 [MT Psa_119:127 ] ἠγάπησα τὰς ἐντολάς σου ὑπὲρ τὸ χρυσίον καὶ τοπάζιον , and see Pliny H.N . xxxvii. 32 egregia etiamnum sua topazo gloria est, virenti genere.
STEPBible — Tyndale Abridged Greek Lexicon
τοπάζιον, -ου, τό
(and τόπαζος, ὁ), [in LXX: Exo.28:17 35:17 (Exo.39:10), Job.28:19, Eze.28:13 (פִּטְדָה), Psa.119:127 (פָּז)* ;]
topaz: Rev.21:20 (see Swete, in l).†
(AS)