Clear Quartz has found its way into nearly every ancient tradition and they all have their own legends to tell, one of my favourites belongs to the ancient Chinese and Japanese who regarded the Crystal as the perfect gem, crystal balls were carved from it and these were regarded as the heart of a dragon and the symbol of creation. 
 
The use of these balls for showing the duality between the material and spiritual worlds is thought to date back to the Buddhist Altars.
Since then, gazing into these spheres has been used as a window to different times and dimensions and a way of divination. 
 
It would be easier to list what Clear Quartz isn’t good for! 
It enhances psychic abilities and aids in concentration and memory as well as offering clarity. 
It amplifies positive energy and intentions, absorbs negativity and is a very cleansing and healing crystal. 
It helps us tune into our higher self and aids spiritual growth as well as giving us a feeling of empowerment.  
It stimulates the immune system and balances the chakras.
Clear Quartz can also help to cleanse the other Crystals around it and it will enhance the energy of those Crystals too so for extra healing, add Clear Quartz to any combinations to amplify their properties.