This tourmaline, variety elbaite, is from the Pederneira Mine in Sao Jose da Safira, Minas Gerais, Brazil. Elbaite is in the tourmaline Group of Minerals. It is a silicate that contains the elements Al, B, H, Li, Na, O and Si. It can be found in a variety of colors which is caused by traces of other elements in the crystal lattice. This crystal is from a 2004 find. It is transparent with striated prism faces and a glass luster. It is double terminated with one end having a pinacoid termination and one having a flat probable former point of matrix attachment. The crystal is blue with a lavender cast. One end is blue and one end is green. This piece measures 2 1/4 x 3/8 x 5/16 inches or 57 x 8 x 7 mm. This piece weighs 8.75 grams
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