Chert (specifically Red Chert or Jasper)
Microcrystalline Quartz (SiO2)
Category
Browse anthropogenic sedimentary style organic solid specimens identified by the Rock Identifier community.
Chert (specifically Red Chert or Jasper)
Microcrystalline Quartz (SiO2)
Chert (Flint variety)
Microcrystalline Quartz (SiO2)
Chert (Flint)
Chert (SiO2)
Chert (Chert Nodule in Limestone)
Microcrystalline Quartz (SiO2)
Chert (often called Flint)
Chert (Microcrystalline or cryptocrystalline Silica, SiO2)
Chert (often called Flint)
Microcrystalline Quartz (SiO2)
Chert (Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (specifically a flint nodule component)
Microcrystalline quartz (SiO2)
Chert / Flint
Chert (SiO2)
Chert (Flint)
Microcrystalline or cryptocrystalline Quartz (SiO2)
Petrified Wood
Silicified wood (primarily SiO2)
Chert / Jasper
Microcrystalline Quartz (SiO2)
Chert (and Limestone)
Silicon Dioxide (SiO2) in Calcium Carbonate (CaCO3)
Chert (Jasper/Flint variety)
Microcrystalline Quartz (SiO2)
Chert Concretion with Iron Oxide Staining
Microcrystalline Quartz (SiO2)
Chalcedony
Cryptocrystalline Quartz (SiO2)
Chert (Jasper/Flint variety)
Silicon Dioxide (SiO2)
Picture Jasper
SiO2
Sedimentary Rock with Crafts (Pet Rock)
Sedimentary rock decorated with synthetic materials
Brown Chert
Microcrystalline Quartz (SiO2)
Banded Chert
Chert (Silicon Dioxide, SiO2)
Chert (Jasper)
Microcrystalline Quartz (SiO2)
Sandstone (Weathered Coastal Boulder)
Arenite (composed primarily of SiO2)
Anthracite Coal
Carbon (with organic impurities)
Amber
Succinates (Organic Gemstone)
Shale with Iron Staining
Fissile Mudrock (Sedimentary Rock)
Limestone with Fossil Fragment
Sedimentary carbonate rock (CaCO3)
Green Chert
Microcrystalline Quartz (SiO2)
Shark Tooth Fossil
Carcharocles megalodon or similar extinct shark tooth
Chert (Jasper/Chalcedony)
Microcrystalline Quartz (SiO2)
Pyrite Concretion
Iron Sulfide (FeS2) in Sedimentary Matrix
Jasper
Microcrystalline Quartz (SiO2)
Sedimentary Sandstone
Arenite (Sedimentary Rock)
Petrified Wood
Silicified Wood (primarily Quartz/SiO2)
Fossiliferous Limestone
Calcium Carbonate (CaCO3) - Limestone
Petrified Wood
Silicified Wood (SiO2)
Sandstone Pebble
Arenite (primarily SiO2)
Chert (Common Opal/Jasper variety)
Microcrystalline Quartz (SiO2) with hydration
Soil with Mineral Detritus and Quartz Fragments
Regolith / Silicate Mineral Aggregate
Chert (Jasper variety)
Microcrystalline Quartz (SiO2)
Pyrite in Shale
Iron Sulfide (FeS2) in Sedimentary Matrix
Fossil Shark Tooth
Otodus sp. or Carcharocles sp. (likely fossilized Chondrichthyes)