A Geoscience Digital Image Library

TitleChromite on serpentine rock
DescriptionAlthough its primary origin is ultra-mafic rocks such as peridotites, chromite is also found in metamorphic rocks such as serpentites. Chromite, FeCr2O4 (iron chromium oxide), as is indicated by its early crystallization, is resistant to the altering affects of high temperatures and pressures. Thus it is capable of going through the metamorphic processes unscathed, while other minerals around it are being altered to serpentine, biotite and garnets. This characteristic also explains chromites use as a refractory component in the bricks and linings of blast furnaces.
LocationUSA ▹ Montana ▹ Nye
PhotographerDarla Sondrol. 2001-07-31.
CollectionUniversity of North Dakota Mineralogy Collection #406.
Key wordsChromite, Serpentine, Montana
Tech details1.0 MB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens.
GeoDIL number1400