If you wanted an endgame use for quartz you could use powdered quartz, olivine, rose quartz, amethyst, and any other glasses I'm missing in the game to make pottery glazes with borax and water. Probably also some kind of thickening agent that isn't in the game.
We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.