This is the rough limestone seen in Manitou Dome below the crack. This is the smoother limestone seen above the crack in Manitou Dome. Horizontal or parallel layers of translucent calcium carbonate that flow over the existing rock, producing different shades of color with wax-like luster. Also known as Cave Onyx or Banded Travertine. The precipitation of calcite is enhanced right at the point were the water flows out of the pool causing a dam to form.
Small pools can eventually become large enough and deep enough to swim in.
On horizontal ceilings, the water droplet is pulled off of the ceiling by gravity and stalactites are formed. On slanting ceilings, the water droplets move down along the ceiling depositing a small ridge of calcite. As the water continues to flow down the same path, the calcite ridge grows out from the wall forming a ribbon. Water is forced out of a crack in the cave wall. As the water is forced out of these cracks, the calcite crystallizes out of the water and a plate begins to grow away from the wall.