Chert (specifically Red Chert/Jasper)
Microcrystalline Quartz (SiO2)
Category
Browse sedimentary (if natural jasper) or artificial (if slag) specimens identified by the Rock Identifier community.
Chert (specifically Red Chert/Jasper)
Microcrystalline Quartz (SiO2)
Halite
Halite (NaCl)
River Cobble (likely Sandstone or Siltstone type)
Sandstone or Siltstone (common rock types that form river cobbles)
Chert (Green variety)
Microcrystalline Opaline/Quartz (SiO2)
Chert (variations include Flint or Jasper)
Silicon Dioxide (SiO2)
Chert / Flint
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (specifically Jasper or Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Flint Pebbles)
Microcrystalline quartz (SiO2)
Ferruginous Conglomerate
Conglomerate with Iron-Oxide Matrix (SiO2 + Fe2O3/FeO(OH))
Chert (Chert / Flint nodule)
Silicon Dioxide (SiO2)
Chert (Jasper/Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Pebble
Clast (specifically a granule or small pebble)
Sandstone (Pebble/Conglomerate fragment)
Sandstone (clastic sedimentary rock)
Sandstone
Quartz Arenite (a type of sandstone composed of more than 90% quartz)
Carnelian
Carnelian (a variety of Chalcedony, SiO ₂)
Chert (Commonly known as Flint)
Microcrystalline Quartz (SiO2)
Chert (Yellow Jasper variant)
Microcrystalline quartz (SiO2)
Chert (Jasper/Flint variety)
Silicon Dioxide (SiO2)
Chert (Pink variety/Jasper)
Silicon Dioxide (SiO2)
Banded Agate (Jasper-Agate)
Silicon Dioxide (SiO₂)
Limonite-stained Chert/Jasper
Microcrystalline Quartz (SiO2) with Iron Oxides (FeO(OH)·nH2O)
Chert
Chert (microcrystalline quartz, SiO2)
Chert
Chert (microcrystalline quartz)
Chert (specifically Flint or Jasper variant)
Microcrystalline Quartz (SiO2)
Chert (Jasper/Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Jasper/Flint variety)
Microcrystalline Quartz (SiO2)
Chert Pebble (Jasper variant)
Microcrystalline Quartz (SiO2)
Chert (Jasper/Flint variation)
Chert (SiO2)
Chert (Jasper/Black Chert)
Silicon Dioxide (SiO2)
Green Moss Agate / Jasper
Silicon Dioxide (SiO2) - Microcrystalline Quartz with Iron and Manganese inclusions
Chert (Yellow Jasper variant)
Microcrystalline Quartz (SiO2)
Yellow Jasper with Dendritic Inclusions
Silicon Dioxide (SiO2) with Manganese/Iron Oxide inclusions
Chert (and Jasper/Flint variant)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Jasper/Flint variety)
Microcrystalline silicon dioxide (SiO2)
Chert (Jasper/Flint variant)
Silicon Dioxide (SiO2)
Banded Chert (or Banded Jasper)
Silicon Dioxide (SiO2) with Iron Oxide impurities (Hematite/Goethite)
Chert (Common Variety, Jasper)
Microcrystalline Quartz (SiO2)
Chert (Jasper/Flint variety)
Microcrystalline Quartz (SiO2)
Chert (Jasper/Flint Pebble)
Microcrystalline quartz (SiO2)
Chert (Jasper/Flint variety)
Silicon Dioxide (SiO2)
Chert (Jasper/Flint variety)
Silicon Dioxide (SiO2)
Chert (Jasper/Flint variant)
Silicon Dioxide (SiO2)