This is an awesome tutorial from Allison Merritt... She shows you how she achieves those amazing pieceshttps://www.youtube.com/watch?v=vPinmeiQ-fM&feature=youtu.be&fbclid=IwAR3kMPF5Zf_vk70_aXU8AB5ThbjT0RpoNS138G_0buhvGPxTOHEy62IjGrA. These agate slices are simply gorgeous. Love the colours and the sparkle.