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This commercially available collection of all 92 naturally-occurring elements gives you a chance to see and safely handle some extraordinary materials, with appearances from: scandium, an element more common on the Sun than Earth; the highly toxic arsenic, which was once used in Greek physicians' cures and Elizabethan cosmetics; extremely rare earth metals ruthenium and tantalum, which are used in smart electronics; and radioactive elements, uranium and polonium.
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