3 ms·

Sure, in small quantities, it's not the majority of the volume they collected though.

• 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 ago
    To 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]