10.4 x 8.7 x 5.2 cm. This pyrite is pristine all around front and sides, contacted only on the back out of view. The quartz is pristine and complete all around. It is 3-dimensional, dramatic, and just plain unique in overall combinatorial aesthetics. I love the secondary intricate faces on the pyrite, and how they reflect light in person to make this appear even more starkly metallic against the contrasting matrix. Gene Schlepp obtained this from the Dr. Miguel Romero Collection in trade. Gene then sold it to Dr. Ed David with whom it has remained.