17pcs Amber-colored aragonite with fluorescence

The newly found amber-colored aragonite exhibits intense fluorescence under long-wave ultraviolet light, followed by persistent phosphorescence lasting up to five seconds. lt was collected from the Dachang Mine in Qinglong County, Guizhou Province, China. Box dimension: 21x27cm FREE shipping worldwide, shipping time 7-30 days. Order confirmation email will be sent to your after placing the order, tracking number will be sent to you once package is shipped. For more details, read "Shipping" page.