Stone is the most common ore in the game, spawning throughout most of the mine and most of Interconnection at an unmissable rate. It also appear in Marketplace trades, and as a placeholder for Geodes. Stone generally has 1 hardness, but the hardness increases significantly the further down you are in the mine. The color of Stone changes depending on the layer you are in, although some layers use a different ore as their primary "Stone" block, such as Plasma in Plasma Field.