The refractive properties of a 3d scanned meteorite (a siderite fallen in Siberia, Russia in 1947) have been simulated over the surface of a flight of steps using the index of refraction of water. The results of this simulation have been printed over a physical reproduction of the same structure. The work is part of the project « Cave Caustic », as well as the first of a series of works that explore minerals and their « cultural aura ».