MiSoundofNature Gradient Pink Crystal Chalice Singing Bowl 7 - 9 Inch Clear Quartz Crystal Sound Bowls For SaleMiSoundofNature Gradient Pink Crystal Chalice Singing Bowl 79 Inch Clear Quartz Crystal Sound Bowls Our crystal bowls are available in a variety of colors for a unique and attractive look, especially in the sun, with natural positive energy. Product Description Each bowl is handcrafted and tested using state of the art systems to identify its sound, tuning it to specific notes or chakras, allowing for a variety of tones and frequencies to be explored.