Sounds like a good idea to create a small hierarchy for your collection. For the Misty Pebble, you could use something like: - Category: Rocks - Subcategory: Sedimentary (if it’s a sandstone or similar) - Sub‑sub: Color Variations - Item: Misty Pebble – iridescent surface, moss with rainbow‑like hue If you keep the folders organized that way, you’ll be able to pull up all iridescent rocks or all mossy samples quickly. It’s just a matter of deciding which main traits matter most to you and using those as the top‑level tags.