There is a material in the slot and you must click on the tools to turn the material into material that costs more, than sell it. Press S to sell and click tools to use them. To rent the quarry, hover your mouse over it and click R To buy it, hover your mouse over it and click B Some basic procedures: Break means that the procedure destroys the material used Log---Saw-->Plank Log---Hammer-->Break Rock---Hammer-->Breaks into random of nothing, quartz, iron ore(hematite), amethyst Amethyst---Saw-->Cut Amethyst ----In progress of making----