σάρδιοςsárdios

Same root

• σάρδινοςsárdinos · G4555sardine (G3037 (λίθος) being implied), i.e. a gem, so called
• σαρδόνυξsardónyx · G4557hence the "onyx" stone); a "sardonyx", i.e. the gem so called

Where it appears

Appears 2 times in the Bible.

• Revelation 4:3 The one sitting on the throne was as brilliant as gemstones—like jasper and carnelian. And the glow of an emerald circled his throne like a rainbow.
• Revelation 21:20 the fifth onyx, the sixth carnelian, the seventh chrysolite, the eighth beryl, the ninth topaz, the tenth chrysoprase, the eleventh jacinth, the twelfth amethyst.