Structural color coatings offer exceptional vibrancy and durability but remain limited in many applications due to high material costs and fabrication complexity. This work aims to address the former limit and demonstrates multilayer optical coatings fabricated from un-processed natural mineral powders using electron beam evaporation. By using SiO₂ and TiO₂ based mineral materials as dielectric layers and a CuO–Fe₂O₃ mixture as an absorbing base, High-Low-Absorber (HLA) structures were fabricated that exhibit the desired reflection color. Refractive indices of TiO₂ films derived from ceramic powder are shown to be reproducible under controlled vacuum and source conditions, while the CuO–Fe₂O₃ mixture forms a stable film with high absorption and long-term conductivity. Structural colors deposited on both silicon and glass substrates exhibit strong agreement with optical simulations and are validated by reflectance spectra, ellipsometry, and X-ray photoelectron spectroscopy. This approach highlights a cost-effective pathway for producing optical coatings using minimally refined raw materials, with potential applications in photonics, optoelectronics, and sustainable color technologies.