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Mine, mining of tin (Sn) ore, as mineral cassiterite (SnO2). Rocks held in hand. Element used in Lithium-ion batteries, coils of superconducting magnets, pigments, solder, plating and bronze metal
Copper and bronze metal gears, isolated on white
gold
Gold, bronze, violet Color strip gradient wave paper on black. Abstract light, shadow texture background.
Ancient Roman coins collected inside a bronze container on an orange background.

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