Red Sandstone
Arenite (with Iron Oxide cement)
Category
Browse industrial byproduct (anthropogenic rock like material) specimens identified by the Rock Identifier community.
Red Sandstone
Arenite (with Iron Oxide cement)
Red Sandstone
Arenite (predominantly Quartz with Hematite cementation)
Sandstone
Arenite
Sandstone (with Iron Staining)
Clastic Sedimentary Rock (primarily Quartz with Limonite/Goethite staining)
Arsenopyrite with Schist Matrix
Arsenopyrite (FeAsS)
Limonite (Iron Ore)
Limonite (Hydrous iron(III) oxide-hydroxide mixture, primarily FeO(OH)·nH2O)
Sandstone (Ferruginous)
Arenite with Iron Oxides
Quartz Pebble
Silicon Dioxide (SiO2)
Sandstone (Pebble/Conglomerate fragment)
Sandstone (clastic sedimentary rock)
Chert (Flint/Jasper)
Silicon Dioxide (SiO2)
Chert (Gravel pebble)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Diamond
Natural Diamond (Carbon, C)
Jasper / Chert (Red)
Cryptocrystalline quartz (SiO2)
Sandstone
Arenite
Sandstone
Arenite (primarily Quartz, SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Milky Quartz with Dendritic Inclusions
Silicon Dioxide (SiO2)
Granitic Pegmatite
Granite (with coarse-grained Quartz, Feldspar, and Mica components)
Sandstone
Arenite (Sedimentary rock comprising sand-sized grains)
White Topaz
Aluminum Silicate Fluoride Hydroxide; Al2SiO4(F,OH)2
Cobalt Blue Sea Glass
Amorphous Silica Glass (SiO2 + CoO)
Sandstone
Arenite
Chert (Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Man-made Synthetic Material (Plastic/Composite)
Acrylonitrile Butadiene Styrene (ABS) or High-Impact Polystyrene (HIPS)
Quartzite
Metamorphosed Quartz Sandstone
Sandstone
Arenite (composed primarily of SiO2)
Silver (Sterling Silver Jewelry)
Argentum (Ag) mixed with Copper (Cu)
Red Sandstone
Ferruginous Sandstone (SiO2 with Fe2O3)
Sea Glass
Amorphous Silica (Anthropogenic glass) - SiO2
Quartz Druzy (Geode Fragment)
Silicon Dioxide (SiO2)
Sandstone
Arenite (composed primarily of SiO2)
Kaolinite (Chalky Clay)
Kaolinite (Al2Si2O5(OH)4)
Sandstone (likely Quartz Sandstone)
Arenite (composed primarily of SiO2)
Vesicular Basalt or Scoria
Basalt (extrusive volcanic rock)
Sandstone
Arenite (SiO2 primarily)
Granite
Granite (Felsic Plutonic Rock)
Diamond
C (Native Carbon)
Quartzite
Quartzite (SiO2)
Sandstone
Arenite
Biotite Schist (likely)
Biotite Schist (rock), Biotite (mineral)
Sandstone (likely Arkosic or Lithic Sandstone)
Arenite (SiO2 based with mineral inclusions)