Rock Identifier

Category

Mineral Or Sedimentary (If Chert)

Browse mineral or sedimentary (if chert) specimens identified by the Rock Identifier community.

Learn about Mineral Or Sedimentary (If Chert) in the encyclopedia

Chert

Coal

Claystone

Shale

Marl

Black Shale

Quartzite Sandstone

Quartzite Sandstone

Banded Iron Formation

Banded Iron Formation

Sperrylite

Ironstone

Breccia

Brookite

Chert (Septarian Nodules-like) (Silicon dioxide (SiO2)) — sedimentary

Chert (Septarian Nodules-like)

Silicon dioxide (SiO2)

Chert (Jasper-like) (SiO2 (Cryptocrystalline Quartz)) — Sedimentary

Chert (Jasper-like)

SiO2 (Cryptocrystalline Quartz)

Chert / Flint (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert / Flint

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (Nodule) (Silicon dioxide (SiO2) - Cryptocrystalline Quartz) — sedimentary

Chert (Nodule)

Silicon dioxide (SiO2) - Cryptocrystalline Quartz

Chert (with Lichen) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (with Lichen)

Microcrystalline Quartz (SiO2)

Chert or chalcedony fragment (Microcrystalline quartz (SiO₂), likely ferruginous or jasper-like chalcedony) — mineral

Chert or chalcedony fragment

Microcrystalline quartz (SiO₂), likely ferruginous or jasper-like chalcedony

Chert (specifically Gray/Black Chert) (Chert (Microcrystalline or Cryptocrystalline Quartz, SiO2)) — sedimentary

Chert (specifically Gray/Black Chert)

Chert (Microcrystalline or Cryptocrystalline Quartz, SiO2)

Chert (Polished/Tumbled) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Polished/Tumbled)

Silicon Dioxide (SiO2)

Chert (Iron-stained) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Iron-stained)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (Yellow and Red Jasper) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Yellow and Red Jasper)

Microcrystalline Quartz (SiO2)

Chert Pebble with Inclusion (Microcrystalline Quartz (SiO2)) — sedimentary

Chert Pebble with Inclusion

Microcrystalline Quartz (SiO2)

Chert (Septarian or Nodular variety) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Septarian or Nodular variety)

Microcrystalline Quartz (SiO2)

Quartz / Chert (Silicon Dioxide (SiO2)) — Mineral / Sedimentary

Quartz / Chert

Silicon Dioxide (SiO2)

Mineral / Sedimentary

Chert (or possibly Flint) (Chert (variant: Flint)) — Sedimentary

Chert (or possibly Flint)

Chert (variant: Flint)

Ironstone Concretion / Chert Nodules (Iron-rich Sedimentary Concretion (Fe2O3 / SiO2 mix)) — sedimentary

Ironstone Concretion / Chert Nodules

Iron-rich Sedimentary Concretion (Fe2O3 / SiO2 mix)

Chert (Jasper) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Jasper)

Microcrystalline Quartz (SiO2)

Pebble (likely Quartz or Chert) (SiO₂ (Silicon Dioxide) - referring to the likely main mineral composition, Quartz. If it's chert, the scientific name remains SiO₂ with a microcrystalline structure.) — Sedimentary Rock

Pebble (likely Quartz or Chert)

SiO₂ (Silicon Dioxide) - referring to the likely main mineral composition, Quartz. If it's chert, the scientific name remains SiO₂ with a microcrystalline structure.

Sedimentary Rock

Chert (Flint variety) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Flint variety)

Microcrystalline Quartz (SiO2)

Chert / Chalcedony Blend (Microcrystalline Quartz (SiO2)) — sedimentary

Chert / Chalcedony Blend

Microcrystalline Quartz (SiO2)

Chert / Jasper (Silicon Dioxide (SiO2)) — sedimentary

Chert / Jasper

Silicon Dioxide (SiO2)

Chert / Flint Nodule (Microcrystalline quartz (SiO2)) — sedimentary

Chert / Flint Nodule

Microcrystalline quartz (SiO2)

Chert (Jasper/Chaldcedony) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Jasper/Chaldcedony)

Silicon Dioxide (SiO2)

Chert (Jasper variety) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Jasper variety)

Silicon Dioxide (SiO2)

Chert (Concretion or Nodular Variety) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Concretion or Nodular Variety)

Microcrystalline Quartz (SiO2)

Conglomerate Pebble (with Chert / Quartz) (Sedimentary Conglomerate / Breccia Pebble) — sedimentary

Conglomerate Pebble (with Chert / Quartz)

Sedimentary Conglomerate / Breccia Pebble

Chert (Common Opal or Flint variant) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Common Opal or Flint variant)

Microcrystalline Quartz (SiO2)

Chert / Flint (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert / Flint

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert / River Pebble (Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert / River Pebble

Cryptocrystalline Quartz (SiO2)

Chert / Flint Pebble (Microcrystalline Silica (SiO2)) — sedimentary

Chert / Flint Pebble

Microcrystalline Silica (SiO2)

Chert (often referred to as Flint) (Chert (Microcrystalline Quartz, SiO2)) — sedimentary

Chert (often referred to as Flint)

Chert (Microcrystalline Quartz, SiO2)

Chert (varietal Flint) (Silicon Dioxide (SiO2)) — sedimentary

Chert (varietal Flint)

Silicon Dioxide (SiO2)

Chert (Microcrystalline quartz (SiO2)) — sedimentary

Chert

Microcrystalline quartz (SiO2)

Red jasper (likely brecciated jasper) (Jasper, microcrystalline quartz (SiO₂), colored mainly by iron oxides) — mineral

Red jasper (likely brecciated jasper)

Jasper, microcrystalline quartz (SiO₂), colored mainly by iron oxides

Chert (often associated with Jasper) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (often associated with Jasper)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (Chalcedony/Agate) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Chalcedony/Agate)

Microcrystalline Quartz (SiO2)

Chert (Jasper variety) (Silicon Dioxide (SiO2) - Cryptocrystalline Quartz) — sedimentary

Chert (Jasper variety)

Silicon Dioxide (SiO2) - Cryptocrystalline Quartz

Chert (Flint Nodules) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Flint Nodules)

Silicon Dioxide (SiO2)

Chert (Flint) (Silicon dioxide (SiO2)) — sedimentary

Chert (Flint)

Silicon dioxide (SiO2)

Mixed polished river stones (Likely quartz, quartzite, chert/jasper, and possibly limestone or marble) — mineral

Mixed polished river stones

Likely quartz, quartzite, chert/jasper, and possibly limestone or marble

Zebra Jasper (Tetragonal Silicon Dioxide (Quartz) with impurities) — sedimentary

Zebra Jasper

Tetragonal Silicon Dioxide (Quartz) with impurities

Chert (Chert (Microcrystalline Quartz, SiO2)) — sedimentary

Chert

Chert (Microcrystalline Quartz, SiO2)

Smoky Quartz with Chert (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz with Chert

Silicon Dioxide (SiO2)