A slice of Koroit boulder with amazing ironstone and opal patterns. Polished both sides. A lovely piece for a collection, or simply use as decorative paperweight. I am listing 3 other slices as well, from the same piece of boulder. Price is for this piece only. Weighs 91 grams, measures 110.5mm x 51.5mm x nearly 9mm at longest, widest and deepest points.
