Chert (specifically Flint or Jasper variant)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Category
Browse anthropogenic sedimentary style organic solid specimens identified by the Rock Identifier community.
Chert (specifically Flint or Jasper variant)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Flint Nodules)
Cryptocrystalline Quartz (SiO2)
Chert (specifically Flint or Jasper variant)
Microcrystalline quartz (SiO2)
Petrified Wood / Red Jasper
Silicified wood (primarily Silicon Dioxide, SiO2)
River Jasper (Chert/Chalcedony)
Silicon Dioxide (SiO2) with iron oxide impurities
Chert (Chalcedony/Jasper)
Microcrystalline Quartz (SiO2)
Chert (often referred to as Flint or Jasper)
Chalcedony (SiO2) - Silicon Dioxide
Chert (Jasper/Flint variety)
Microcrystalline Quartz (SiO2)
Chert (Jasper variety)
Silicon Dioxide (SiO2)
Chert (Jasper)
Microcrystalline Quartz (SiO2)
Pyrite
Iron Sulfide (FeS2)
Chert (Jasper)
Microcrystalline Silica (SiO2)
Shungite
Shungite (carbon-rich Precambrian mineraloid)
Chert (specifically Flint or Jasper variant)
Microcrystalline Quartz (SiO2)
Chert (often called Flint or Jasper)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Jasper)
Microcrystalline Quartz (SiO2)
Brown Pebble (Probable Chert or Siltstone)
Silicon Dioxide (SiO2) / Sedimentary Microcrystalline Quartz
Chert
Microcrystalline or cryptocrystalline quartz (SiO2)
Chert (Jasper variety)
Silicon Dioxide (SiO2)
Chert
Microcrystalline silica (SiO2)
Chert (v. Flint)
Chert (Microcrystalline Quartz, SiO2)
Chert (variant Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Abalone Shell (Nacre)
Aragonite (CaCO3) - Biogenic Mineral
Chert (Jasper variation)
Silicon Dioxide (SiO2)
Chert (and Flint)
Silicon Dioxide (SiO2)
Chert (Nodule)
Microcrystalline Quartz (SiO2)
Jasper
Silicon dioxide, SiO2
Chert (with Limestone matrix)
Chert (Silica: SiO2)
Chert (Yellow Jasper)
Microcrystalline Quartz (SiO2)
Chert (Jasper)
Microcrystalline Quartz (SiO2)
Chert (Flint)
Chert (Microcrystalline or cryptocrystalline Quartz, SiO2)
Petrified Wood
Silicified Wood (SiO2)
Chert / Flint
Chert (Microcrystalline Quartz, SiO2)
Fossilized Shark Tooth
Carcharodon carcharias (fossilized) / Hydroxyapatite permineralized with silica or iron
Chert (Flint)
Microcrystalline quartz (SiO2)
Chert (often called Flint)
Chert (Cryptocrystalline Quartz, SiO2)
Brown Chert
Microcrystalline Quartz (SiO2)
Shale
Shale (fine-grained clastic sedimentary rock)
Petrified Wood
Silicified Wood (SiO2)
Fossiliferous Limestone
Limestone (CaCO3 - Calcium Carbonate)
Shale (or Mudstone)
Siltstone/Argillite (composed mainly of clay and silt-sized particles)
Fossilized Shark Tooth
Carcharocles sp. or Striatolamia sp. (Phosphate/Carbonate mineralized Hydroxyapatite)