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A Geoscience Digital Image Library

474.jpg
TitleSandstone from near Buffalo Gap, South Dakota, USA
DescriptionMost of the grains in normal sandstones are quartz, but they can have different appearances depending on the cement that holds the quartz grains together. Various different cements are possible. This sandstone has hematite (iron oxide) as its primary cement, so it has a red and yellow color. This sample is 8.5 cm in longest dimension.
LocationUSA ▹ South Dakota. Near Buffalo Gap.
PhotographerNessa Eull. 2001-05-21.
CollectionWard’s University Rock Collection #142.
Key wordssandstone, South Dakota, hematite
Tech details1.19 MB. Hand specimen. Fujifilm FinePix S1Pro digital.
GeoDIL number474