This orange quartz 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. This is a cluster of crystals that have red and bright orange hematite (oxide) inclusions. They are transparent and have a glass luster. The largest crystal is 3 inches long or 76 mm tall. This piece measures 3 x 2 1/8 x 1 3/8 inches or 76 x 54 x 35 mm.