• Godort@lemm.ee
      link
      fedilink
      arrow-up
      3
      ·
      10 months ago

      Very expensive as it needs a custom mold and 2 days at 2000C and specialized grinding as it’s not a flat surface. As for safety, it’s probably just as safe as regular glass

    • ImpossibilityBox@lemmy.world
      link
      fedilink
      arrow-up
      3
      ·
      10 months ago

      considering that sapphire and ruby are different versions of transparent aluminum (really) I would probably cost a ton but be entirely safe to use.

      It’s also rather dense and stays quite cool to the touch. It would probably be amazing.