This pyrite is from Navajuin, La Rioja, Spain.The deposits in this area are cretaceous and are 65 to 145 million years old. This locale is famous for the outstanding crystals found there. They have sharp cubic habits, a bright golden color and mirror luster. Pyrite is a sulfide mineral containing the elements Fe and S. It can have a variety of crystal habits including cubic. It is sometimes referred to as “fools Gold” for obvious reasons. This specimen consists of a marlestone matrix that naturally hosts bright gold, mirror luster cubic pyrite crystal aesthetically perched on top. The crystal is exposed or partially exposed on all six sides. It measures 13/16 inches or 2.1 cm on its largest edge. This piece measures 3 x 2 1/4 x 1 1/2 inches or 7.65 x 5.75 x 3.7 cm.