You’re talking about a product that’s quite literally “pick it up and sell it”. Adding a single step to the process will be economically more expensive. Mining, logging, fishing etc. are all similar examples.
It isn’t quite pick it up and sell it (just like most mining) - a lot of work goes into finding and consistently identifying the correct grade.
It isn’t quite pick it up and sell it (just like most mining) - a lot of work goes into finding and consistently identifying the correct grade.