Hag Stone
Perforated Flint or Chert (SiO2)
sedimentary
Category
Sedimentary Rock (Specifically A Chemical Sedimentary Rock, Or A Chert If Considered Purely Mineral Aggregate)
Browse sedimentary rock (specifically a chemical sedimentary rock, or a chert if considered purely mineral aggregate) specimens identified by the Rock Identifier community.
Learn about Sedimentary Rock (Specifically A Chemical Sedimentary Rock, Or A Chert If Considered Purely Mineral Aggregate) in the encyclopedia
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Chert (Jasper)
Silicon Dioxide (SiO2)
sedimentary
Sandstone (Ferruginous)
Arenite with Iron-oxide inclusions (SiO2 primarily)
sedimentary
Chert (specifically Red Chert / Flint)
Silicon Dioxide (SiO2)
sedimentary
Chert (Nodule)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Chert (Jasper-like Silicate)
Microcrystalline Quartz (SiO2)
sedimentary
Quartz pebble
Silicon Dioxide (SiO2)
mineral
Chert (specifically Flint or Chalcedony nodule)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Red Jasper variant)
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Chert (specifically White Chert or Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Chert (Jasper)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (specifically Flint or Jasper variant)
Silicon Dioxide (SiO2)
sedimentary
Asphalt Chunk (with aggregate)
Bituminous concrete / Anthropogenic conglomerate
sedimentary (anthropogenic/man-made conglomerate)
Chert (Jasper variety)
Silicon Dioxide (SiO2)
sedimentary
Chert
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Chert Pebble)
Microcrystalline or cryptocrystalline Quartz (SiO2)
sedimentary
Gneiss (with Quartzite layers)
Gneissic Metamorphic Rock
metamorphic
Yellow Chert or Jasper
Silicon Dioxide (SiO2)
sedimentary
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Pebble)
Chert (Microcrystalline Quartz, SiO2)
sedimentary
Chert (Jasper)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (specifically Flint or Jasper variant)
Microcrystalline quartz (SiO2)
sedimentary
Chert (Pebble)
Microcrystalline to Cryptocrystalline Quartz (SiO2)
sedimentary
Sandstone (Ferruginous)
Arenite (with iron oxide cement, Fe2O3)
sedimentary
Chert (River Cobble)
Chert (Cryptocrystalline Quartz, SiO2)
sedimentary
Chert (also known as Flint or Common Chalcedony)
Cryptocrystalline Silica (SiO2)
sedimentary
Sandstone (lithic/greywacke variety)
Arenite (composed primarily of SiO2 with various lithic fragments)
sedimentary
Quartzite Pebble
Metamorphic Quartzite (SiO2)
metamorphic
Chert / River Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Jasper)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Flint)
Chert (SiO2)
sedimentary
Druzy Quartz on Sandstone
Silicon Dioxide (SiO2) on Sedimentary Host Rock
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Chert (Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Amethyst (Chevron Amethyst)
Amethystine Quartz (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Druzy Quartz on Chert/Siltstone
Silicon Dioxide (SiO2) on Microcrystalline Silica/Siltstone matrix
sedimentary
Chert (Arrowhead/Projectile Point)
Microcrystalline quartz (SiO2)
sedimentary
River Pebble (likely Quartzite or Chert)
Sedimentary Clast (Silicon Dioxide dominant)
sedimentary
Limestone with Chert or Siltstone bands
Sedimentary carbonate rock (CaCO3) often with siliceous impurities
sedimentary
Chert (Flint)
Chert (SiO2)
sedimentary
Chert (specifically Zebra Chert/Flint)
Silicon Dioxide (SiO2)
sedimentary