🥉🏺

#bronze #bronze age #ancient metal #copper alloy #tin alloy #artifact #historical metal

✴️⚙️🔩

#bronze metal #bronze gear #copper alloy #metallic part #reddish metal #industrial metal

🎺🎷

#brass #brass instruments #copper alloy #zinc alloy #metal mixture

🥉🧊⚡

#cuprate #superconductor #copper alloy #conductivity #materials science