Rough 33 weight: 70 grams. Size: 110 x 90 x 3.7 mm. Koroit Matrix Opal. Also see Rough 30 & 31 for the other side. This is a broader view of Rough 32. Strange, huh? And beautiful. Ain't nature wonderful? 12,000,000 years in the making.Sort of looks like a head wearing a hat, profile facing left. The Siamese fighting fish from Rough 32 is jumping over his head.