Welcome to the Geologist's Primer, your definitive tabletop RPG sourcebook bridging real-world geology with fantasy worldbuilding. This system-agnostic, 360-page hardcover guide features meticulously researched content inspired by 19th-century field guides, ancient folklore, and millennia of legends. What's Inside: One hundred beautifully illustrated mineral, crystal, and metal entries Geological data paired with folklore, myths, and magical properties Industrial, decorative, and culinary uses for world-immersive storytelling Quest prompts and random generation tables for instant campaign inspiration Astrological resources and tools for creating legendary items and dangerous locations Each entry combines basic geological information with extraction notes, historical context, and handy short descriptions—perfect for quick reference during gameplay or deep research during campaign design. Whether you're rooting your fantasy world in scientific authenticity or weaving ancient alchemy into your narrative, this professionally designed guide empowers game masters to build cohesive, believable magical systems that captivate players. A collectible resource that elevates both your gameplay experience and your gaming shelf.