Two quartz crystals showing a very curious polycrystalline growth on prism, showing multiple terminal faces. With a good luster and translucent. Partially covered by snowy white dolomite crystals peppered by small pyrite crystals. On a pyrite with dolomite crystals matrix. A huge size display specimen. THE MAIN CRYSTAL IS: 7,5 x 3,5 x 3,5 cm.