 Sometimes host rocks contain no insoluble minerals, in which case stylolites can be recognized by change in texture of the rock.They occur most commonly in homogeneous rocks, carbonates, cherts, sandstones, but they can be found in certain igneous rocks and ice.Their size vary from microscopic contacts between two grains (microstylolites) to large structures up to 20 m in length and up to 10 m in amplitude in ice.