• Wogi@lemmy.world
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    3 days ago

    The rock is quite useful as an industrial tool. It’s when you cut it in to a fancy shape and wear it that it’s pretty useless.

    We use diamonds to test the hardness of materials, grind really hard things smaller, orient and locate specialized cutting tools, and cut through really hard things. Hell we sell garnet by the barrel to help cut through regular materials. Orderly carbon or, in many cases orderly aluminum oxide, is something we need a lot of. The price going down on those is actually good for manufacturing.

    • finitebanjo@lemmy.world
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      2 days ago

      But the industrial rocks are 90% manmade, the stonesetter diamonds were mined with slave labour or close to it, and people probably died for them.