Chert (Jasper variety)
Microcrystalline Quartz (SiO2)
Category
Browse sedimentary (fossil) specimens identified by the Rock Identifier community.
Chert (Jasper variety)
Microcrystalline Quartz (SiO2)
Amber
Succinate (Fossilized Tree Resin)
Banded Chert
Microcrystalline Quartz (SiO2)
Chert (specifically Gray/Tan Chert Node)
Microcrystalline Quartz (SiO2)
Chert with Quartz Veining
Silicon Dioxide (SiO2)
Chert (specifically Gray Chert)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert / Flint
Chert (Microcrystalline Quartz, SiO2)
Chert (Jasper variety)
Silicon Dioxide (SiO2)
Limonite (Iron Ore)
Limonite (FeO(OH)·nH2O)
Quartz Crystal with Inclusions
Silicon Dioxide (SiO2)
Chert Nodule in Limestone
Chert (Microcrystalline Quartz, SiO2) and Limestone (Calcium Carbonate, CaCO3)
Kambaba Jasper
Stromatolite / Fossilized Algae (Rhyolitic structure)
Sandstone (Ferruginous)
Clastic Sedimentary Rock (primarily SiO2 with Fe2O3 staining)
Sandstone (lithic wacke)
Arenite / Lithic Wacke (mostly SiO2 with rock fragments)
Sandstone (Ferruginous)
Arenite (Fe-rich)
Sandstone
Arenite (SiO2 primarily)
Sandstone
Arenite (primarily SiO2)
Sandstone (likely Arkosic)
Arenite (SiO2 with KAlSi3O8)
Conglomerate
Conglomerate rock
Limestone
Calcium Carbonate (CaCO3)
Sandstone (Ferruginous)
Arenite (primarily SiO2 with iron oxide cement)
Dalmatian Jasper
Dalmatian Stone (a microcrystalline quartz and feldspar rock with arfvedsonite)
Limestone (Weathered)
Calcium Carbonate (CaCO3)
Sandstone
Arenite (composed primarily of SiO2)
Chert
Microcrystalline silica (SiO2)
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
Yellow Chalcedony (Agate/Chert)
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz
Banded Calcite (often sold as Caribbean Calcite or Honey Calcite)
Calcium Carbonate (CaCO3)
Chert (Flint variety)
Silicon Dioxide (SiO2)
Satin Spar (Selenite)
Gypsum (Calcium Sulfate Dihydrate) - CaSO4·2H2O
Satin Spar Selenite
Gypsum (Calcium Sulfate Dihydrate) - CaSO4·2H2O
Sandstone (likely Greywacke variant)
Arenite
Chert (Chalcedony/Flint)
Silicon Dioxide (SiO2)
Bituminous Coal
Bituminous coal (Carbonaceous sedimentary rock)
Chert (Flint)
Silicon Dioxide (SiO2)
Sandstone (Quartzose Sandstone)
Clastic Sedimentary Rock (Lithic arenite / Quartz arenite)
Sandstone (Ferruginous)
Arenite with Iron-Oxide Cement
Banded Chert
Cryptocrystalline Quartz (SiO2)
Sandstone
Arenite (primarily SiO2)
Sandstone
Arenite (primarily SiO2)
Sandstone (likely Quartzose Sandstone)
Arenite (SiO2 principal composition)
Sandstone (Pebble)
Arenite (composed primarily of SiO2)