Matrix Boulder Opal with flashes of green and purple. It measures 35 x 25mm and weighs 8.7g.
Matrix Opal with very bright flashes of green, blue and purple with a hint of red. It measures 36 x 22mm and weighs 9.3g
Matrix Boulder Opal with bright flashes of green and purple/blue. It measures 31 x 21mm and weighs 6.3g