Beatiful specimen from Tuscany of Coquimbite (rare Fe and Al Sulphate) in very weel shaped crystals of excellent luster in in a wonderful deep purple color present in two sides of the piece as shown by photos Please pay attention that Coquimbite is generally quite sensitive to humidity; this specimen is sealed in a plastic box for protection Origin: Monte Arsiccio Mine, Stazzema, Lucca Province, Tuscany, Italy Size: 7.9 X 6.4 X 3.9 Cm Weight: 103 Gr Please keep in mind that photos are taken inside a box with LED lights and that the colors may be slightly different. Detail photos are obviously enlarged to show the particularities at their best. If youd need you can contact us to have videos of the piece taken in daylight