Chert (Flint)
Microcrystalline Quartz (SiO2)
Category
Browse anthropogenic sedimentary (man made) specimens identified by the Rock Identifier community.
Chert (Flint)
Microcrystalline Quartz (SiO2)
Chert (Chalcedony/Agate)
Microcrystalline Quartz (SiO2)
Chert
Microcrystalline quartz (SiO2)
Chert
Microcrystalline Quartz (SiO2)
Chert
Microcrystalline quartz (SiO2)
Chert
Microcrystalline Quartz (SiO2)
Chert
Microcrystalline quartz (SiO2)
Chert
Microcrystalline Silicon Dioxide (SiO2)
Banded Chert
Microcrystalline Quartz (SiO2)
Petrified Wood
Silicified Wood (SiO2)
Chert (Jasper variation)
Microcrystalline Quartz (SiO2)
Chert (Jasper/Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Flint (or Chert)
Cryptocrystalline Quartz (SiO2)
Chert (Flint)
Silicon dioxide (SiO2)
Chert (River Siltstone/Quartzite type)
Microcrystalline Quartz (SiO2)
Chert
Microcrystalline Quartz (SiO2)
Chert (Flint)
Microcrystalline Silica (SiO2)
Chert (Jasper/Agate variety)
Microcrystalline Quartz (SiO2)
Jasper (Iron-rich Chalcedony)
Jasper (Microcrystalline Silicon Dioxide, SiO2 plus iron oxide impurities)
Chert (often called Flint or Jasper)
Microcrystalline Quartz (SiO2)
Chert (Jasper/Flint variety)
Microcrystalline Quartz (SiO2)
Hoodoo (Limestone / Siltstone Formation)
Claron Formation (Sedimentary Rock - Limestone, Mudstone, Dolomite)
Diamond (or Cubic Zirconia simulant)
Carbon (C) - Diamond / Zirconium dioxide (ZrO2) - CZ
Moissanite
Silicon Carbide (SiC)
Diamond
Carbon (C)
Flint
Sedimentary cryptocrystalline quartz (SiO2)
Sandstone (likely Fossiliferous)
Arenite / Fossiliferous Sandstone (SiO2 composition)
Hag Stone (Flint with natural hole)
Silicon Dioxide (SiO2) - Nodular Chert / Flint
Coquina
Coquina (Bioclastic Limestone)
Coal (Anthracite / Bituminous)
Organic Sedimentary Rock (Carbon-based)
Fossilized Shark Tooth (Sand Tiger)
Carcharias sp. (Fossilized Tooth)
Red Sandstone
Arenite (with Iron Oxide / Hematite staining)
Flint or chert, possibly a knapped stone tool
Microcrystalline quartz (SiO₂), commonly chalcedony with possible carbonaceous impurities
Chert (specifically White Chert or Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Yellow Jasper/Flint)
Chert (Microcrystalline Silicon Dioxide, SiO2)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Coquina
Coquina (Biogenic Limestone / CaCO3)
Coquina Limestone
Coquina (Biogenic Limestone)
Flint (or Chert with cortex)
Silicon dioxide (SiO2)
Chert (with Desert Varnish/Iron Stain)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Flint)
Silicon Dioxide (SiO2)
Coquina / Fossiliferous Limestone
Coquina (composed primarily of Calcium Carbonate / CaCO3)