An amazing, iridescent, deep-blue smithsonite of incredible color - I've not seen another this good from this find or from anywhere else with quite this intense shade of blue! The rich blue smithsonite contains internal "rainbow" reflections of iridescence that result in glimpses of purple and pink highlights as you move the piece in the light. The smithsonite is translucent, and the thickness is about 1 cm or more throughout (of carving-grade lapidary quality!). It has silky luster. Spectacular! 14 x 8.3 x 8.1 cm