From diamonds to cookies: a playful preview of what makes crystals special
This show-note preview points to a kid-friendly exploration of crystals, from the tiny structure inside diamonds to surprising crystals hiding in chocolate chip cookies. It also promises a look at crystal colors, formation, and a hoax involving Mesoamerican crystal skulls.
Based on the published show notes, this episode looks like a lively introduction to crystals that mixes science with a few fun surprises. The main hook is that crystals are not just pretty objects: the episode plans to zoom in on a diamond to show the structure that gives crystals their distinctive properties. The notes also suggest the episode broadens the idea of what counts as a crystal. One of the most intriguing teases is that chocolate chip cookies contain different crystals, which hints at an everyday-science angle that could make the topic feel accessible for younger listeners or curious families. Another focus appears to be the basics of crystal formation and color. If you want a simple science explainer on how crystals grow and why they can look so different from one another, this episode seems designed to cover that in an approachable way. There’s also a mystery element: Marc and Sanden investigate a hoax involving Mesoamerican crystal skulls. Since this preview is based only on the show notes, it’s not clear how deeply they go into the history or debunking, but it does sound like a fun side path that adds some skepticism and storytelling to the science. If you’re deciding whether to listen, this seems like a good pick for anyone who enjoys hands-on science topics, surprising examples from daily life, and a light myth-busting angle. It reads as educational, playful, and broad enough to appeal even if you don’t already care about geology.
About this episode
This episode shines a light on crystals, and they’re sparkling right back at us! We’ll zoom way in on a diamond to understand the structure that makes crystals special, and hear about some unexpected crystals, too (hint: chocolate chip cookies contain a few different crystals!). Then, we take a look at how crystals form and get their cool colors. Plus, Marc and Sanden hunt down a hoax about Mesoamerican crystal skulls. Want to support the show? Join Smarty Pass to listen to ad-free episodes or donate! Want to see Brains On live?!? We are probably coming to a city near you. For a complete list of shows and links to tickets head to our events page. Fall 2026 show announcement coming soon! June 20 - Southern Theater, Columbus, OH June 21 - Turner Hall Ballroom, Milwaukee, WI