I like the concept. It's quite simple on its own, but I think it could work as a base for a full-on jewel shop simulator

Fun concept! Can I pay with leaves?  :D

Cool game! I love to gamble! You have a really cool and unique idea.

fun game! It really feels unique and fun. If you would want to further develop the game and make the gameplay loop longer, I would love to try it out!

i didn't expect this game to be this fun! it's difficult (or i'm just stupid) but i like it!

I love the reactions! There was just a lot of text, but I appreciated the help buttons next to each of the tests. I liked the music. I think I'm just confused about how the mechanics worked- almost all of the rocks scratched, but they still sold for a lot? It was supposed to be the most reliable test, but then why did they all scratch? Maybe I just don't understand how it works, but it just seemed hard to judge based on the given information.

I understood how the game worked, but I don't know how to analyze a rock... would be cool if this game taught me about different types of rocks :)

Pretty cool, but next time a gameplay tutorial rather than a notebook on how it works would be a lot better to teach the player on how it works. Still it was seriously fun!

This thing does it better than the slot machines.

I absolutely love it when a game introduces me to a fascinating real-world hobby!

Small quality of life addition would be a quick mute toggle to disable the audio when needed.