This is an interesting piece of rare, light green Smithsonite on matrix. It weighs 218.3 grams & measures approximately 4 x 2 x 1.5 inches. It was found in Arizona, by my grandfather, who was a geologist. I happened to see that similar looking piece of this material (similar size, weight & color) sold for $110 on eBay, so don't miss out on this one! Please feel free to ask questions.