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Uranium keychain has luminophore
Green niobium cylinder (Nb)
Anodized tantalum keychain has 4 small tantalum rods anodized at different voltage rates
Indium crystals inside ampoule 12x80 mm
Argon keychain 20x40 mm, 99.99%, Ar yttrium Uranium keychain has luminophoreThe keychain contains Argon gas inside ampoule! The keychain can't illuminate by itself. Use Tesla coil to make it glow. The keychain is made of transparent urethane. The dimensions are 8x20x40 mm. It has a steel chain and a ring.
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