Does anyone else use gems?

I used to be really into gemstones and I still have a small box of them. Uusally I carry one around in my bag and keep some quartz around near my PC but I'm still a teensy bit skeptical about their healing properties, I haven't looked into it too much for many years now. It's something my grandmother is also into and we also have a lot of dreamcatchers around the house. I do love my gems.