This quartz crystal cluster is from Diamantina in Minas Gerais, Brazil. This locale covers a wide area that contains dozens of mines and claims that produce over 25 different minerals including a variety of outstanding quartz crystals. A laser crystal has an elongated habit that tapers toward a small pointed termination. Clusters of this type of crystal are uncommon especially from Diamantina as they are usually found as single detached crystals. The crystals in this piece are transparent with a vitreous to glass luster. The prism faces contain inclusions of reddish hematite just below the surface which creates complex growth patterns on the crystals. The longest or primary crystal measures 97 mm long This piece measures 3 3/4 x 2 3/4 x 1 7/16 inches or 96 x 70 x 37 mm.