Sandstone (Ferruginous)
Arenite (composed primarily of SiO2 with Fe2O3 staining)
Category
Browse sedimentary (man made conglomerate) specimens identified by the Rock Identifier community.
Sandstone (Ferruginous)
Arenite (composed primarily of SiO2 with Fe2O3 staining)
Blue Calcite
Calcium Carbonate (CaCO3)
Orange Calcite (likely polished specimen)
Calcite
Sandstone (likely Graywacke or Arkose variant)
Clastic Sedimentary Rock (Lithic Sandstone)
Septarian Nodule (Septarian Dragon Stone)
Septarian Concretion (Composition: Calcite, Aragonite, and Limestone/Clay)
Chert
Chert (variant of microcrystalline quartz)
Aragonite Star Cluster
Aragonite (Calcium Carbonate, CaCO3)
Granular Sandstone
Arenite (variable composition, primarily SiO2)
Sandstone (Ferruginous)
Arenite (SiO2 with iron oxide impurities)
Sandstone
Arenite (SiO2 based)
Sandstone (likely Arkosic)
Clastic Sedimentary Rock (Sandstone)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Sandstone (Red/Brown Variety)
Arenite (SiO2 with iron oxide impurities)
Sandstone
Arenite (primarily SiO2)
Sandstone (Ferruginous)
Arenite (primarily SiO2 with Fe2O3 staining)
Sandstone (likely with Quartz Veining)
Arenite (primarily SiO2)
Sandstone (Quartzose)
Arenite (primarily SiO2)
Sandstone (Pebble/Cobble)
Arenite (primarily SiO2)
Sandstone
Arenite (primarily SiO2)
Sandstone (Ferruginous)
Arenite (primarily SiO2 with Fe2O3 cementation)
Sandstone (Ferruginous)
Clastic sedimentary rock (primarily SiO2 with Fe2O3 cement)
Sandstone
Arenite (primarily SiO2)
River Rock / Stream Pebble
Fluvial Clast / Rounded Sedimentary Particle
Ferruginous Sandstone (River Pebble)
Clastic Sedimentary Rock (primarily SiO2 with Fe2O3 cement)
Sandstone
Arenicola (comprising mostly Quartz, SiO2)
Chalk / Sedimentary Limestone
Calcium Carbonate (CaCO3) - Biogenic Sedimentary Rock
Chalk (Sedimentary Limestone)
Calcium Carbonate (CaCO3) - Bioclastic Limestone
Quartz-veined Siltstone
Siltstone with Quartz (SiO2) veins
Banded Iron Formation
Banded Iron Formation (BIF)
Fossilized Bone Fragment
Permineralized Vertebrate Bone (Hydrox yapatite replaced by Silica or Calcite)
Sedimentary Sandstone (Sandstone Slab)
Arenite (SiO2 with Fe2O3 staining)
Sedimentary rock with quartz veining
Laminated siltstone or mudstone with hydrothermal quartz veins
Fossil Shell in Sedimentary Matrix
Bivalvia (fossil) in Calcium Carbonate Matrix
Fossilized Fish (Lepidotes)
Lepidotes sp. (Order: Lepisosteiformes)
Sandstone (Quartzose)
Arenite (primarily SiO2)
Red Jasper
Silicon Dioxide with Hematite impurities (SiO2 + Fe2O3)
Red Jasper
Jasper (Silicon Dioxide, SiO2)
Moqui Marble (Shaman Stone)
Ironstone Concretion (Fe2O3 - Hematite/Goethite shell with Sandstone core)
Sandstone
Arenite (primarily SiO2)
Fossilized Bivalve Shell
Bivalvia (fossil specimen)
Concretion (Sandstone)
Sandstone Concretion
Sandstone (with Iron Staining)
Clastic sedimentary rock (High Silica / Iron Oxide)