CCV Lousal's Exhibit "Histories that minerals tell us about"

Left side (parallelogram shaped box): There are 6 minerals, that rotate and reflect light in a certain way, after the user selects the active mineral. Afterwards, the user in invited to guess which luster is the most correct, within 4 possible answers;
Right side (transparent tube): Tube display, showing 11 minerals rotating in an apparent downward spiral, which gives the impression that the minerals are falling in slow-motion.