How to identify crystals

Hey! I have around 100 crystals and I was wondering where I could get these identified?

I was told what they were when I bought them but my medication makes me forget. I should have written it down. Is there any good apps I could use?

Some I was planning on selling (they are beautiful but I can't do them justice with displays), but there are others I want to know so I can tell my friends and do research!

I'm clueless when it comes to crystals despite loving them so much.

I hope this post is okay, thank you!! (For reference; I'm in Scotland if that helps with apps.)