Large (1,4 kilogramms total weight) rough/rubbed Boulder Opal PARCEL. 258 pieces to play with .Sizes range from 15-60 mm (appr.). so useable for cutting ringstones or for pendants.. Every piece shows some color or nice structure (Koroit/Yowah material) . there are also some pieces with several hidden colorbars in this parcel. ..Some turquise-green-blue (and even golden/orange/red) pattern/Colorplay. Please be aware that for a price of 2 Euros a piece you cant get all gem class opals, this material is for practice and better skilled cutters. You have to hold this opal in your hands to see the fascinating colorplay. Video is a bit too dark. . For returns: sealed bag must be unhurt/closed