Copper
description: US$3500 LOCALITY: Block 13 Mine, Broken Hill, New South Wales, Australia 1 3/4" across This piece is a very high quality group of spinel-law twins with their original petina. It was probably mined before 1920. There is little double that some of the finest spinel-law twin native copper specimens were mined from Broken Hill. This is an exquisite example.
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