Elestial Quartz also known as Window Quartz, is a type of Quartz with a specific pattern of terminations that flow throughout the face and body of the crystal. Finding a clear Elestial Quartz is rather uncommon, so you will more often than not see it as a Smoky Quartz. This stone acts as a window into the spiritual world, linking our spiritual mind to the universe. Due to this stone being a Quartz variety, our chakra system has a natural tendency to realign itself back into harmony. A skeletal crystal is one that develops under conditions of rapid growth and high degree of supersaturation.