A Geoscience Digital Image Library

TitleChalcopyrite with garnet, magnetite and quartz from New Mexico
DescriptionThis sample of metamorphic rock from New Mexico has four distinct minerals present. Chalcopyrite, CuFeS2 (copper iron sulfide), is the gold, or yellow colored mineral. Garnet is red and glassy looking, and is mostly a variety called almandine, Fe3Al2Si3O12. Magnetite is the gray mineral, Fe3O4 (iron oxide). Finally, quartz is the white mineral present in this sample. Its formula is SiO2 (silicon dioxide). This specimen is 9 cm across.
LocationUSA ▹ New Mexico. Continental #2 Fierro.
PhotographerDarla Sondrol. 2001-07-09.
CollectionUniversity of North Dakota Mineralogy Collection #113.
Key wordschalcopyrite, garnet, magnetite, quartz, New Mexico
Tech details798 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens.
GeoDIL number1050