Carved Stone Turtle
Carved Soapstone and Quartz
Category
Browse sedimentary (man made composite) specimens identified by the Rock Identifier community.
Carved Stone Turtle
Carved Soapstone and Quartz
Sandstone (specifically Arkose or Quartz Arenite)
Arenite (primarily SiO2 with possible Feldspar)
Banded Gneiss
Gneiss (Foliated Metamorphic Rock)
Chert
Microcrystalline quartz (SiO2)
Flint / Chert Pebble
Microcrystalline Quartz (SiO2)
Flint
Silicon dioxide (Microcrystalline Quartz / Chert)
Chert (or Flint)
Microcrystalline quartz (SiO2)
Chert (Jasper/Flint)
Silicon Dioxide (SiO2)
Chert (Flint)
Chert (Silicon Dioxide, SiO2)
Chert (Honey Chert / Flint)
Silicon Dioxide (SiO2)
Chert (and Agate/Chalcedony)
Microcrystalline Quartz (SiO2)
Sandstone (Pebble)
Arenite
Chalk
Carbonate rock (mainly CaCO3)
Sandstone (Quartzose)
Sandstone (SiO2 dominated)
Chert
Microcrystalline Quartz (SiO2)
Coquina
Biogenic Limestone (Calcium Carbonate, CaCO3)
Banded Jasper / Chert Beach Pebble
Microcrystalline Quartz (SiO2)
Chert
Microcrystalline Quartz (SiO2)
Chert / Flint
Silicon Dioxide (Microcrystalline Quartz, SiO2)
Flint / Chert
Microcrystalline quartz (SiO2)
Brecciated Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Chert (specifically Flint or Nodular Chert)
Silicon dioxide (SiO2)
Petrified Wood
Silicified Wood (SiO2)
Chert (Jasper/Flint var.)
Silicon Dioxide (SiO2)
Chert (often called Flint or River Stone)
Microcrystalline alpha-quartz (SiO2)
Chert (Flint)
Silicon Dioxide (SiO2)
Red Jasper
Silicon Dioxide (SiO2) with Hematite (Fe2O3)
Chert (Flint)
SiO2 (Microcrystalline Quartz)
Quartz Sandstone Pebble
Sandstone (SiO2 dominated)
Limestone
Calcareous sedimentary rock (CaCO3)
Fossiliferous Limestone (Crinoid stem fossils)
Sedimentary Limestone with Crinoidea ossicles
Sandstone
Arenite
Mica Schist
Mica Schist (principally Biotite/Muscovite, Quartz, and Feldspar)
Coquina
Bioclastic Limestone (composed primarily of CaCO3)
Coquina / Fossiliferous Limestone
Calcareous bioclastic sedimentary rock (CaCO3)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Chert Arrowhead
Cryptocrystalline Quartz (SiO2)
Chert (specifically Flint)
Chert (SiO2)
Agate (Dyed) or composite stone
SiO2
Titanium Aura Quartz (Aura Quartz)
Titanium-coated Silicon Dioxide (SiO2)
Jasper
Silicon dioxide (SiO2) with impurities
Chert / Flint
Silicon Dioxide (SiO2)