全部拍賣 / Ethnographic / Copper Sphere - Height: 5.4 cm- 570 g - (1)
The name derives from the spoken Latin aramen (a word already attested in 950) for late aeramen, a derivative of the Latin word aes which means "copper" or "bronze", names preserved in other Indo-European languages. Copper is the metal humanity has used for the longest time: objects made of copper have been found dating to 8,700 BC. Copper is a pinkish or reddish metal, with very high electrical and thermal conductivity, surpassed only by silver; it is very resistant to corrosion (due to a patina that forms spontaneously on the surface, initially brownish and then green or greenish-blue) and is non-magnetic. It is easily workable. Copper sphere originating from Michigan, America. Weight: 570g Diameter: 5.41 cm Shipped with express courier (tracking)
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