Cubic Pyrite Cluster - Specimen raw opal specimen giving the specimen its metallic

giving the specimen its metallic “fool’s gold” look

Feldspar typically forms first as large framework crystals

Approximate size of 1 piece: 75mm x 75mm x 10mmApproximate weight of 1 piece: 30g

but it is just oil residue from the machine oil being pressed on under a shrink wrap coating to keep them clean

Cubic Pyrite Cluster - Specimen raw opal specimen giving the specimen its metallicMined from: Ampliacin a Victoria Mine, Navajn, La Rioja, Spain Description: This one of a kind cubic Pyrite cluster mineral specimen from Spain features a striking cluster of sharp, metallic cubic pyrite crystals with a bright brassy gold to silver gold sheen. The specimen has strong geometric structure, with stacked and intergrown cubes, clean flat faces, sharp angular edges, and darker reflective recesses that add depth between the crystal forms.