Not only clear in appearance, Clear Quartz also possess a certain clarity in its ability as a stone.  This clarity is seen in its skill to be "programmed" by its holders' focused intention to help achieve their desired goal.  This makes Clear Quartz a stone that is very in tune with the mind, holding the ability to align its objective with an individual's thoughts.  This also makes Clear Quartz very useful in meditation, as one can sit with the stone, visualize a desired outcome, and channel those thoughts into the Quartz.  Because of this, Clear Quartz is also known to bring spiritual awareness to their possessors.  To tie into its versatility, Clear Quartz is known to amplify all energies of other stones, as it resonates with all Chakras.  This makes it an ideal 'base' stone used to clear and cleanse an individuals' personal energies.