Chert (Arrowhead/Artifact Fragment)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Category
Browse sedimentary (fossilized organic remain) specimens identified by the Rock Identifier community.
Chert (Arrowhead/Artifact Fragment)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (specifically Gray/Blue Chert)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (varieties include Flint and Jasper)
Silicon Dioxide (SiO2)
Petrified Wood
Silicified Wood (primarily SiO2)
Trace Fossil (Lichenandites or Rhynie Chert Chert with Microfossils)
Trace fossil in microcrystalline quartz (SiO2)
Petrified Wood
Silicified wood (primarily Quartz/Chalcedony, SiO2)
Limestone
Calcium Carbonate (CaCO3)
Petrified Wood
Silicified Wood (primarily SiO2)
Chert (Jasper-bearing)
Microcrystalline silica (SiO2) with iron oxide inclusions
Chert (Flint)
Microcrystalline Quartz (SiO2)
Anthracite Coal
Anthracite (Carbon-rich metamorphic coal)
Red Chert (Jasper)
Cryptocrystalline Quartz (SiO2) with iron oxide inclusions
Jasper
Silicon Dioxide (SiO2) with impurities
Jasper
Jasper (Cryptocrystalline variety of Quartz, SiO2)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Chert (Flint)
Chert (Microcrystalline or cryptocrystalline Quartz, SiO2)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Chert (Grey/Black variety)
Chert (Silicon Dioxide, SiO2)
Chert / Flint
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Flint Nodule)
Microcrystalline Quartz (SiO2)
Chert (often called Flint in this context)
Silicon Dioxide (SiO2)
Chert / Flint
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (specifically Flint or Jasper variant)
Microcrystalline quartz (SiO2)
Chert / Flint
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Tan/Brown variety)
Chert (Microcrystalline Quartz, SiO2)
Chert (Nodule)
Silicon Dioxide (SiO2)
Chert (Commonly known as Flint or Jasper when pigmented)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Iron-stained)
Microcrystalline or cryptocrystalline Quartz (SiO2)
Chert (Cherty Limestone or Flint)
Microcrystalline Silica (SiO2)
Chert (often called Flint or Jasper based on color)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Nodular or Massive Variety)
Cryptocrystalline Quartz (SiO2)
Chert (Jasper/Flint variety)
Microcrystalline Quartz (SiO2)
Chert (Jasper/Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert with Quartz/Calcite Vein
Microcrystalline Silica (SiO2)
Chert (Iron-stained)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (specifically Flint or Jasper variant)
Microcrystalline Quartz (SiO2)
Chert (Iron-stained)
Chert (SiO2)
Chert (variations include Flint/Jasper)
Cryptocrystalline Silicon Dioxide (SiO2)
Chert (Jasper/Flint variety)
Microcrystalline quartz (SiO2)
Chert (Flint)
Microcrystalline Quartz (SiO2)