Limestone forms under water but is not related to flowing water or water carrying sediment particles. Igneous rock is basically volcanic in origin. It does not involve particles falling or precipitating out of water but rather comes out of the Earth, from the mantle of the Earth. Metamorphic rock refers to a variety of types of rock that has come from altering other rock or other materials in various ways. Usually great heat and pressure are involved in forming metamorphic rock and metamorphic rock can be very dense.
Marble is a form of metamorphic rock.
There are certain special and very unusual metamorphic minerals that are good indicators of impacts from space because they require extreme pressures in order to form. Sedimentary rocks provide many powerful evidences for the Flood. Fossils are essentially only found in Sedimentary rock, but not all sedimentary rock. Sedimentary rock itself argues for the Flood because of the large area and thickness of the sedimentary rock layers, the size of large boulders moved by water, and other facts that point to a global Flood. Fossils can be good indicators of Flooding since they may be sorted, they may be aligned in a consistent direction, and the way fossil bones are found often indicates rapid catastrophic burial.