A Geoscience Digital Image Library

TitleMolybdenite in quartz from Questa, Mexico
DescriptionThe dark mineral in this photo is molybdenite, MoS2 (molybdenum sulfide), the principal molybdenum ore mineral. Molybdenite is a very soft metallic mineral, generally has a silvery color, and may form flexible “books.” It can be confused with graphite, but not with many other minerals. Graphite has a darker black-silver color and a black-gray to brown-gray streak, whereas molybdenite has a bluish-silver color and streak. These pieces are 5-6 cm in longest dimension.
LocationUSA ▹ New Mexico. Near Questa.
PhotographerTwyla Baker. 2001-06-28.
CollectionUniversity of North Dakota Mineralogy Collection.
Key wordsmolybdenite, quartz, New Mexico
Tech details385 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens.
GeoDIL number946