Looking at this large specimen from the display face, it is difficult to tell exactly what is going on. You see what look like prismatic quartz crystals (in form), as well as disk-like shapes, all with a sandy white surface. What it turns out happened, and what you can see from underneath, is that there were seams of layered calcite intermixed with quartz crystals, and a coating of microcrystalline quartz covered the whole surface like snow, leaving this landscape of strange forms. 10.3 x 10.0 x 4.2 cm