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Mining operations rarely find pure metals in the ground. Ore is a dilute mixture of rock with trace metals which must be extracted through processing.
by cwkoss 7y ago
Mining operations rarely find pure metals in the ground. Ore is a dilute mixture of rock with trace metals which must be extracted through processing.
- newnewpdro 7y agoTo categorize what's found on the shoulders of highways entirely as an ore of some trace metal is to completely dismiss the rest of its content as irrelevant, despite being the bulk of its volume, in a discussion ostensibly about pollution.
- deleted 7y ago[deleted]