The iridescence and formations of natural minerals are hard to recreate. Using clever building techniques and transparent bricks, this LEGO Ideas set does exactly that. It includes the pieces needed to recreate pieces of golden pyrite, purple amethyst, blue fluorite, watermelon tourmaline, reddish-pink rhodochrosite, and tangerine quartz. Any serious rock collector has their pieces on a shelf, so it also includes three freestanding shelving units with studs to hold the creations firmly in place, allowing the builder to move and place items as they choose, and put them all together, or separately around their space.