I feel like if humans swallowed rocks like birds do to help grind up food we'd have so much fun with it.
Can just imagine all the girlies on tiktok going "I know this is a bit controversial but I honestly love using limestone as a gastrolith. Not only can you readily forage it but they are just so pretty when smoothed out after regurgitating them"
and then all the comments would be like " girl 😭 😭 calcite dissolves in stomach acid!! Just use quartz if you want a pretty gastrolith like 💀"