Crystals can be in form of gemstones, stones, rocks. Mostly crystals belong to precious/ semi-precious gemstones such as lapis lazuli, amethyst, quartz, tourmaline, peridot, emerald, aquamarine etc. They can be in form of rough or polish cut both. Mostly people would like to get in rough form. Each stone has separate properties and has separate meaning and benefits. The stones that have a higher vibration and stronger level of crystal energy, will help in gaining to be more spiritual.