Pyrite Mineral Specimen with Amethyst host

The specimen is a mineral aggregate primarily composed of pyrite (FeS2), characterized by its metallic luster and golden yellow color. The crystal structure exhibits cubic and octahedral forms, with well-defined edges and faces. The surface displays a reflective quality, indicative of high metallic content. The mineral is opaque with a hardness of 6 to 6.5 on the Mohs scale. The overall arrangement of the crystals suggests a growth pattern typical of pyrite, with some areas showing striations along the crystal faces. With original host amethyst one one side. The specimen is presented alongside a United States penny for scale, indicating its substantial size. Origin: Machu Pichu, Peru.