ALGT Report Number: 15077297 Natural Tourmaline Paraiba Tourmaline Oval, Mixed Cut 9,19 x 7,31 x 6,12 mm 3,00 Carat Light Blue Transparent Comments: Paraiba is a gem variety of tourmaline containing copper (Cu) and manganese (Mn). The name is derived from the Brazilian locality Paraiba where this gemstone was first mined, however today it may come from a number of localities. Paraiba tourmaline is commonly heated to improve its color. There is currently no scientific method available to determine whether this gemstone has been enhanced or not. Shipping: Well packed with track&trace and insured.