For a very long time, the industry norm has been to obtain a license, dig the ore, sell the metal and once everything is extracted, go and find another mine elsewhere. This process strips the surface soil, causing soil erosion, soil contamination and sinkholes, and uses toxic chemicals, such as cyanide and mercury, which are used to separate gold from the ore.
read more... https://www.tun.com/blog/how-sustainable-is-your-jewelry/
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