Sandstone Pebble
Sedimentary Clastic Rock (Quartz Arenite)
Category
Browse industrial byproduct (anthropogenic rock like material) specimens identified by the Rock Identifier community.
Sandstone Pebble
Sedimentary Clastic Rock (Quartz Arenite)
Sandstone (Garden Boulder)
Sandstone (SiO2 dominated)
Diamond in Kimberlite
Kimberlite host rock with C (Carbon) inclusion
Jasper
Silicon dioxide (SiO2) with impurities
Epidote (Unakite component) / Green Quartzite
Ca2(Al,Fe)3(SiO4)3(OH)
Chert (Common Opal/Agate mixture)
Microcrystalline Quartz (SiO2)
Sandstone (Banded)
Clastic sedimentary rock (primarily SiO2)
Sandstone (Quartzose)
Sandstone (composed primarily of Quartz: SiO2)
Red Sandstone (Iron-rich)
Arenite (with Hematite cement)
Brecciated jasper, possibly rainforest jasper
Jasper: microcrystalline to cryptocrystalline quartz, SiO₂, commonly containing hematite, goethite, chlorite, epidote, and other iron- and manganese-bearing minerals
Quartz Geode
Crystalline Silicon Dioxide (SiO2)
Chert (Flint nodule)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Petrified Wood
Silicified Wood (SiO2)
Sandstone
Arenite (Sedimentary rock composed of sand-sized grains)
Massive Quartz with Host Rock
Silicon Dioxide (SiO2)
Vesicular Basalt (Scoria)
Extrusive Mafic Volcanic Rock (FeO-SiO2-MgO)
Petrified Wood
Silicified Wood (primarily Quartz/Chalcedony, formula: SiO2)
Sandstone (Quartzose)
Arenite (primarily SiO2)
Quartz Geode
Silicon Dioxide (SiO2)
Bicolor Quartz (Milk Quartz with Slag or Dark Inclusions)
Silicon Dioxide (SiO2) with impurities
Chert (Flint)
Silicon dioxide (SiO2)
Tektite
Tektite (meteoritic glass)
Quartzite Pebble
Quartzite (mostly SiO2)
Sandstone
Arenite (SiO2 primarily)
Sandstone (with manganese staining)
Clastic sedimentary rock (primarily SiO2)
Sandstone
Arenite (primarily SiO2)
Anthracite Coal
Anthracite
Sandstone
Arenite (predominantly SiO2)
Sandstone
Clastic sedimentary rock (Quartz arenite)
Chert (Flint)
Silicon Dioxide (SiO2)
Petrified Wood
Silicified Wood (primarily Chalcedony/Quartz, SiO2)
Pink Rhyolite
Rhyolite (High-silica volcanic rock)
Sedimentary Sandstone (Sandstone Slab)
Arenite (SiO2 with Fe2O3 staining)
Pumice
Pumice (a highly vesicular, silicic volcanic rock)
Sandstone (Iron-stained)
Arenite with Limonite/Hematite staining
Obsidian Arrowhead
Volcanic Glass (Primary composition: SiO2)
Garnet Schist
Almandine Garnet in Mica Schist
Sandstone
Arenite
Biotite Schist (likely)
Biotite Schist (rock), Biotite (mineral)
Garnet Schist
Almandine-mica schist
Sandstone
Arenite (primarily SiO2)
Chert (Yellow Jasper)
Microcrystalline Quartz (SiO2)