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A Geoscience Digital Image Library

490.jpg
TitleDiffusion dolomite, Fremont County, Colorado
DescriptionDolomite is a term used to refer to a specific mineral, CaMg(CO3)2, and also to a rock (such as this one) composed primarily of that mineral. This sample is nearly 100% dolomite. The brown and white striping is due to hematite (Fe2O3) that stains the surfaces of grains in some layers. The sample is 10 cm across.
LocationUSA ▹ Colorado ▹ Fremont County
PhotographerNessa Eull. 2001-05-21.
CollectionWard’s University Rock Collection #157.
Key wordsdolomite
Tech details926 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens.
GeoDIL number490