Chert (Nodule)
Microcrystalline Quartz (SiO2)
Category
Browse organic (sedimentary associated) specimens identified by the Rock Identifier community.
Chert (Nodule)
Microcrystalline Quartz (SiO2)
Limestone with Fossil Fragment
Sedimentary carbonate rock (CaCO3)
Limestone
Calcium Carbonate (CaCO3)
Limestone
Calcium Carbonate (CaCO3)
Limestone
Calcium Carbonate (CaCO3)
Limestone
Calcium Carbonate (CaCO3)
Chert Pebble
Microcrystalline Quartz (SiO2)
Chert (River Pebble)
Microcrystalline Quartz (SiO2)
Chert Pebble
Chert (SiO2)
Fossiliferous Limestone
Fossiliferous Limestone
Chert (Jasper/Flint variant)
Silicon Dioxide (SiO2)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Chert (Jasper)
Silicon Dioxide (SiO2)
Chert (Commonly called Jasper or Flint)
Chert (SiO2)
Honey Calcite
Calcium Carbonate (CaCO3)
Amber
Succinates (Organic Gemstone)
Banded Chert
Silicon Dioxide (SiO2)
Chert (Nodule)
Silicon Dioxide (SiO2)
Fossil Shell
Brachiopod or Mollusk fossil
Yellow Jasper
Silicon Dioxide (SiO2) with iron hydroxides
Jasper
Silicon dioxide (SiO2) with iron oxide impurities
Red Jasper (in Quartz/Chalcedony)
Silicon Dioxide (SiO2) with iron oxide inclusions
Dalmatian Stone
Dalmatian Jasper (Aplitic Rock)
Jasper
Jasper (Silicon Dioxide, SiO2 with iron oxide inclusions)
Banded Flint (Chert)
Silicon Dioxide (SiO2)
Jasper (specifically Red Jasper)
Silicon Dioxide (SiO2) with iron oxide inclusions
Bumblebee Jasper
Anhydrite with Sulfur, Hematite, and Orpiment (SiO2/CaSO4 mixture)
Chert
Chert (Silica: SiO2)
Tumbled brown quartz/chert pebble
Microcrystalline quartz (SiO₂), possibly chert or jasper
Gravel / Limestone Fragment
Calcium Carbonate (CaCO3) / Fine-grained Sedimentary Rock
Amber
Succinate (Fossilized Tree Resin)
Red Quartz (Druzy)
Silicon Dioxide (SiO2) with Hematite inclusions
Banded Agate
Cryptocrystalline Quartz (SiO2)
Fancy Jasper
Chalcedony (SiO2)
Red Jasper with Quartz Vein
Microcrystalline Quartz (SiO2) with Hematite inclusions
Jasper
Silicon dioxide (SiO2)
Jasper (Yellow/Brown variety)
Silicon Dioxide (SiO2) with iron oxide impurities
Red Jasper
Jasper (Silicon Dioxide, SiO2)
Tumbled carnelian (likely orange chalcedony)
Carnelian, a cryptocrystalline variety of quartz; SiO₂, commonly colored by iron oxides
Jasper
Silicon Dioxide (SiO2), Microcrystalline Quartz
Jasper
Microcrystalline Quartz (SiO2)
Jasper
Silicon dioxide (SiO2)