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

Basalt with Chert or Jasper Inclusion (Igneous basalt / sedimentary chert nodule) — igneous

Basalt with Chert or Jasper Inclusion

Igneous basalt / sedimentary chert nodule

Chert (Chert (SiO2)) — sedimentary

Chert

Chert (SiO2)

Blue-gray chalcedony (likely common quartz/chert) (Microcrystalline quartz, SiO₂; possibly weathered chert or chalcedony) — mineral

Blue-gray chalcedony (likely common quartz/chert)

Microcrystalline quartz, SiO₂; possibly weathered chert or chalcedony

Limestone with Calcite Veins (Calcite-veined Argillaceous Limestone) — sedimentary

Limestone with Calcite Veins

Calcite-veined Argillaceous Limestone

Banded chert (likely jasper/chert pebble) (Microcrystalline quartz, SiO₂, with iron-oxide and clay/mineral impurities) — sedimentary

Banded chert (likely jasper/chert pebble)

Microcrystalline quartz, SiO₂, with iron-oxide and clay/mineral impurities

Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Chert

Microcrystalline Quartz (SiO2)

Chert Nodule (Microcrystalline Quartz (SiO2)) — sedimentary

Chert Nodule

Microcrystalline Quartz (SiO2)

Sandstone and River Pebbles (Sedimentary Rock (Sandstone / Quartzite / Chert)) — sedimentary

Sandstone and River Pebbles

Sedimentary Rock (Sandstone / Quartzite / Chert)

Unidentified small rock fragment (Likely quartz-rich material; exact identification is indeterminate from the image) — mineral

Unidentified small rock fragment

Likely quartz-rich material; exact identification is indeterminate from the image

Chert / Flint (Chert (varieties include Flint)) — Sedimentary

Chert / Flint

Chert (varieties include Flint)

Chert (Flint) (Chert (SiO2)) — sedimentary

Chert (Flint)

Chert (SiO2)

Polished fossiliferous chert or silicified limestone pebble (Microcrystalline quartz (SiO₂), possibly with calcite and iron-oxide inclusions) — sedimentary

Polished fossiliferous chert or silicified limestone pebble

Microcrystalline quartz (SiO₂), possibly with calcite and iron-oxide inclusions

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

Breciated Chert

Brecciated Chert (Microcrystalline Quartz, SiO2)

Banded Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Banded Chert

Microcrystalline Quartz (SiO2)

Chert Pebble (Water-worn Quartz/Chalcedony) (Silicon Dioxide (SiO2)) — sedimentary

Chert Pebble (Water-worn Quartz/Chalcedony)

Silicon Dioxide (SiO2)

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

Chert (or Flint)

Silicon dioxide (SiO2)

Banded Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Banded Chert

Microcrystalline Quartz (SiO2)

Green Jasper (Microcrystalline Quartz (SiO2) with mineral inclusions) — sedimentary

Green Jasper

Microcrystalline Quartz (SiO2) with mineral inclusions

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

Chert (Chert / Flint)

Silicon Dioxide (SiO2)

Tumbled quartz-rich pebble, likely jasper or chert (Microcrystalline quartz (SiO₂), possibly iron-stained jasper) — sedimentary

Tumbled quartz-rich pebble, likely jasper or chert

Microcrystalline quartz (SiO₂), possibly iron-stained jasper

Tumbled quartz-rich pebble (Microcrystalline quartz (SiO₂), possibly weathered chert or chalcedony) — mineral

Tumbled quartz-rich pebble

Microcrystalline quartz (SiO₂), possibly weathered chert or chalcedony

Banded Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Banded Chert

Microcrystalline Quartz (SiO2)

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

Chert

Chert (Microcrystalline Quartz, SiO2)

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

Red Chert (Jasper)

Silicon Dioxide (SiO2)

Chert (Nodule) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Nodule)

Silicon Dioxide (SiO2)

Chert (Flint) (Chert (SiO2)) — sedimentary

Chert (Flint)

Chert (SiO2)

Chert (or Flint) (Chert (Sedimentary Cryptocrystalline Sio2)) — sedimentary

Chert (or Flint)

Chert (Sedimentary Cryptocrystalline Sio2)

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

Chert / Flint Pebble

Chert (SiO2)

Chert (Septarian or Banded Nodular Variety) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Septarian or Banded Nodular Variety)

Microcrystalline Quartz (SiO2)

Polished/tumbled brown stone, likely jasper or chert (Microcrystalline quartz (SiO₂), possibly iron-rich jasper or chert) — mineral

Polished/tumbled brown stone, likely jasper or chert

Microcrystalline quartz (SiO₂), possibly iron-rich jasper or chert

Chert Pebble (Jasperoid/Flint) (Silicon Dioxide (SiO2) - cryptocrystalline quartz) — Sedimentary

Chert Pebble (Jasperoid/Flint)

Silicon Dioxide (SiO2) - cryptocrystalline quartz

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

Flint

SiO2 (Microcrystalline Quartz / Chert)

Chert (Chert (Silica: SiO2)) — sedimentary

Chert

Chert (Silica: SiO2)

Chert (specifically Green Chert/Jasper) (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — sedimentary

Chert (specifically Green Chert/Jasper)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

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

Chert Pebble

Chert (Microcrystalline Quartz, SiO2)

Chalcedony (Quartz) (Silicon dioxide (SiO2)) — mineral

Chalcedony (Quartz)

Silicon dioxide (SiO2)

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

Chert (Flint variety)

Chert (SiO2)

Red jasper flint/chert knapped point (Microcrystalline quartz (SiO₂), chiefly chalcedony with iron-oxide coloration) — mineral

Red jasper flint/chert knapped point

Microcrystalline quartz (SiO₂), chiefly chalcedony with iron-oxide coloration

Chert (River Pebble) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (River Pebble)

Microcrystalline Quartz (SiO2)

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

Chert (Flint)

Silicon Dioxide (SiO2)

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

Chert (Jasper variety)

Silicon Dioxide (SiO2)

Black Chert (Chert (microcrystalline quartz)) — Mineral

Black Chert

Chert (microcrystalline quartz)