Elestial Quartz ClusterElestial Quartz also known as Window Quartz, is a type of Quartz with a specific pattern of terminations. Elestial Quartz acts as a window into the spiritual world, linking our conscious and 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.