🧪🪙4️⃣5️⃣

#element 45 #chemical element #atomic number 45 #transition metal #platinum group metal #PGM #rh symbol

💎👑🛡️

#ruthenium #platinum group metal #PGM #precious metal #noble metal #hardness #corrosion resistance #silvery white

💍🧊✨

#platinum group metal #noble metal #bluish-white metal #hard metal #osmiridium