Sandstone
Sandstone (clastic sedimentary rock, predominantly SiO2)
sedimentary
Category
Man Made Rock (Sedimentary Analogue)
Browse man made rock (sedimentary analogue) specimens identified by the Rock Identifier community.
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Sandstone (specifically Red Sandstone)
Arenite (primarily Quartz, SiO2)
sedimentary
Sandstone (Quartzose)
Arenite (primarily SiO2)
sedimentary
Sandstone
Arenite/Quartz Arenite
sedimentary
Sandstone
Arenite (composed primarily of SiO2)
sedimentary
Sandstone (Quartzose Sandstone / Feldspathic Sandstone)
SiO2 with minor impurities (Fe2O3, KAlSi3O8)
sedimentary
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Agate
Silicon Dioxide (Chalcedony), SiO2
sedimentary
Sandstone Pebble
Sedimentary Clastic Rock (Quartz Arenite)
sedimentary
River Stone (Quartzite/Chert mixture)
Microcrystalline Quartz (SiO2)
sedimentary
Coal
Bituminous Coal (organic sedimentary rock)
sedimentary
Sandstone (River Cobble)
Clastic sedimentary rock (primarily SiO2)
sedimentary
Limestone (specifically Fossiliferous Limestone)
Calcium Carbonate (CaCO3)
sedimentary
Sandstone (Banded)
Clastic Sedimentary Rock (primarily Quartz, SiO2)
sedimentary
Ammonite Fossil
Ammonoidea
fossil
Fossilized Coral
Cnidaria fossil / Calcite-replaced coral
fossil
Coprolite
Coprolite (fossilized feces)
fossil
Petrified Wood
Silicified Wood (primarily Chalcedony/Quartz, SiO2)
fossil
Mookaite Jasper
Silicified Radiolarite (SiO2)
sedimentary
Yellow Ocher (Iron-rich Silt/Clay)
Goethite-rich Limonite (FeO(OH)qnH2O)
sedimentary
Generic Rock Fragment
Rock Fragment
sedimentary
Conglomerate
Conglomerate Rock
sedimentary
Conglomerate
Conglomerate Rock
sedimentary
Limestone with Calcite Crust
Sedimentary Calcium Carbonate (CaCO3)
sedimentary
Flint
SiO2 (Microcrystalline Quartz / Chert)
sedimentary
Quartz Geode Fragment
Silicon Dioxide (SiO2)
mineral
Green Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz Geode
Silicon Dioxide (SiO2) within Sedimentary or Igneous host
mineral
Chert (Flint / Chalcedony)
Silicon Dioxide (SiO2)
sedimentary
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Druzy Quartz Geode (with Chalcedony)
Silicon Dioxide (SiO2)
mineral
Red Jasper with Quartz
Opaque microcrystalline Quartz (SiO2) with Hematite inclusions
sedimentary
Hematite Nodules (Moqui Marbles style)
Iron Oxide (Fe2O3)
mineral
Chert (Agatized)
Silicon dioxide (SiO2)
sedimentary
Chert (Quartz Variety)
Silicon Dioxide (SiO2)
sedimentary
Chert (Jasper)
Silicon Dioxide (SiO2)
sedimentary
Carnelian Agate
Carnelian (Silicon Dioxide - SiO2)
mineral
Carnelian (Chalcedony)
Silicon Dioxide (SiO2)
mineral
Chert
Silicon dioxide (SiO2) - Microcrystalline quartz
Sedimentary
River Pebble (Quartz/Sandstone)
Silicon Dioxide (SiO2) Mix
sedimentary