In nature - I invested in a rock tumbler & have been very happy with the results
The Stone Maiden - local crystal store
The Enchanted Elm - local crystal store
Coleman Rock Shop - shop in Hot Springs Arkansas
Earthbound Trading - store in the Mall
Etsy - online
My daughter also found a few very nice specimens at
TJ Maxx Dept. Store
You can get started experiencing their energy with just one stone for very little cost. I started with mainly clear quartz that we dug out of the ground ourselves over a few years time in Mt.Ida Arkansas
I always keep a grid next to me at work all day. It keeps me calm and focused
(from center stone) labradorite, mookaite, sodalite, bloodstone, amazonite, black tourmaline, raw turquoise, amethyst heart, hematite, rainbow fluorite, smokey quartz, rose quartz, tiger's eye, chalcedony, mookaite, turquoise.
My suggestion for getting started. Find yourself a clear quartz cluster or point. Quartz is called the Master Healer. It's a great crystal to use for anything.
KEEP CALM & HOLD A CRYSTAL