Yes ... wherever you get crystals ... they most likely will have the energy signature from the previous owner or place. You want to not only charge them for their energy levels, but cleansing them helps remove old energies. So salt water helps cleanse/charge them (be sure to know that majority of tumbled/polished stones can be charged. There are some crystals that bathing in water would damage it so be sure to read up on that. Sunlight and moonlight also good for charging as well. I've heard of people also charging them out by holding them to small candle light fire.

What kinds of crystals do you have? @joalvarez