Sandstone Grain
Clastic Sedimentary Rock Grain (SiO2 dominated)
sedimentary
Category
Sedimentary (Artificial)
Browse sedimentary (artificial) specimens identified by the Rock Identifier community.
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Sandstone (with Iron Staining)
Clastic sedimentary rock (primarily SiO2 with Fe2O3)
sedimentary
Shale or Slaty Mudstone
Argillaceous sedimentary rock
sedimentary
Siltstone / Slate
Siltstone / Low-grade Slate
sedimentary
Sandstone pebble
Sandstone (mainly Quartz, SiO2)
sedimentary
Sandstone
Arenite
sedimentary
Banded Chert
Microcrystalline Quartz (SiO2)
sedimentary
Gastropod Fossil
Gastropoda
fossil
Conglomerate
Lithified, poorly sorted gravel; composition is uncertain from the image
sedimentary
Weathered Sedimentary Rock
Sedimentary Rock
Sedimentary
Slate
Slate, a fine-grained metamorphic rock composed mainly of mica-group minerals and quartz
metamorphic
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Spirifer Brachiopod Fossil
Phylum Brachiopoda, Order Spiriferida
fossil
Sandstone
Arenite (primarily SiO2)
sedimentary
Fossil Assortment and Geological Specimens
Various (including Ammonoidea)
fossil
Sandstone or Mudstone
Sedimentary Rock
sedimentary
Sandstone (with man-made markings)
Arenite (composed primarily of Quartz, SiO2)
sedimentary
Sandstone
Clastic sedimentary rock (primarily quartz arenite)
sedimentary
Cone-in-cone structure (Limestone)
Cone-in-cone structure (Secondary Sedimentary Structure)
sedimentary
Banded Sedimentary Rock
Sedimentary rock with Liesegang banding
sedimentary
Magnetite or Ironstone Nodule
Magnetite (Fe3O4) or Hematite-rich Sedimentary Nodule
mineral
Shale / Mudstone
Laminated Mudrock (Siliciclastic Sedimentary Rock)
sedimentary
Shale (Beach-worn)
Laminated Pelite (primarily clay minerals and quartz)
sedimentary
Sandstone (Quartz-rich)
Arenite (SiO2)
sedimentary
Bivalve Shell Fragment (Biogenic Calcite/Aragonite)
Calcium carbonate (CaCO3, primarily aragonite/calcite)
sedimentary
Chert Breccia
Brecciated Chert (Microcrystalline Silica)
sedimentary
Quartz Sand Grain
Silicon dioxide (SiO2)
mineral
Sandstone
Arenite
sedimentary
Conglomerate (Quartz Pebble Conglomerate)
Quartz Pebble Conglomerate
sedimentary
Fossil oyster shell
Oyster (family Ostreidae), preserved as fossilized calcite/aragonite shell
fossil
Breccia
Sedimentary Breccia
sedimentary
Breccia
Sedimentary Breccia
sedimentary
Sandstone
Sedimentary Rock
sedimentary
Sandstone
Sedimentary Rock
sedimentary
River Rock
Sedimentary clast
sedimentary
Conglomerate
Sedimentary Conglomerate
sedimentary
Conglomerate
Sedimentary Conglomerate
sedimentary
Sedimentary Pebble
Sedimentary Rock Fragment
sedimentary
Sandstone (Ferruginous)
Clastic sedimentary rock (SiO2 with Fe2O3)
sedimentary
Concrete fragment with Aggregate
Anthropogenic Concrete with Calcarious and Siliceous Aggregate
sedimentary (anthropogenic/man-made)
Mudstone
Lutylite (group of fine-grained sedimentary rocks)
sedimentary
Sandstone
Arenite
sedimentary