geological specimen of natural red orange layered mineral mimetite

geological specimen natural red orange layered mineral mimetite crystal sample gemstone wulfenite lead stone rock science rough precious gem geology mine ore molybdate molybdenum element iron cluster calcium crystalline sedimentary mineralogy fibrous biaxial tabular pegmatite incrustation geologist phosphate molybdenium aggregate nodule hydrothermal pinacoidal nature colorful collection vibrant close color piece raw volcanic semiprecious copper background