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

Banded Iron Formation (Banded Iron Formation (BIF)) — Sedimentary

Banded Iron Formation

Banded Iron Formation (BIF)

Yellow Chert or Jasper (Silicon Dioxide (SiO2)) — sedimentary

Yellow Chert or Jasper

Silicon Dioxide (SiO2)

Small yellow-brown stone, possibly iron-stained quartz or chert (Undetermined; visual evidence is insufficient for a confident identification) — mineral

Small yellow-brown stone, possibly iron-stained quartz or chert

Undetermined; visual evidence is insufficient for a confident identification

Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Chert

Microcrystalline Quartz (SiO2)

Likely ironstone or weathered chert with an iron-oxide spot (Silicified sedimentary rock, possibly ferruginous chert (microcrystalline SiO₂ with Fe oxides)) — sedimentary

Likely ironstone or weathered chert with an iron-oxide spot

Silicified sedimentary rock, possibly ferruginous chert (microcrystalline SiO₂ with Fe oxides)

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

Chert (potentially Jasper)

Microcrystalline Quartz (SiO2)

Polished brown chert or jasper pebble (Microcrystalline quartz (SiO₂), likely iron-stained chert/jasper) — sedimentary

Polished brown chert or jasper pebble

Microcrystalline quartz (SiO₂), likely iron-stained chert/jasper

Chert / Microcrystalline Quartz (Silicon Dioxide (SiO2)) — sedimentary

Chert / Microcrystalline Quartz

Silicon Dioxide (SiO2)

Chert (with Limonite staining) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (with Limonite staining)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

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

Chert (Black Chert or Flint)

Silicon Dioxide (SiO2)

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

Chert (River Pebble)

Microcrystalline silica (SiO2)

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

Chert

Chert (Microcrystalline Quartz, SiO2)

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

Chert (White Chert)

Silicon Dioxide (SiO2)

Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Chert

Microcrystalline Quartz (SiO2)

Tumbled brown stone, possibly jasper or weathered chert (Uncertain; likely microcrystalline quartz (SiO₂), potentially iron-stained jasper/chert) — mineral

Tumbled brown stone, possibly jasper or weathered chert

Uncertain; likely microcrystalline quartz (SiO₂), potentially iron-stained jasper/chert

Chert (Green Chert) (Microcrystalline silica (SiO2)) — sedimentary

Chert (Green Chert)

Microcrystalline silica (SiO2)

Chert with Limestone (Microcrystalline Quartz (SiO2) in Calcium Carbonate (CaCO3) matrix) — sedimentary

Chert with Limestone

Microcrystalline Quartz (SiO2) in Calcium Carbonate (CaCO3) matrix

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

Chert (Nodule)

Silicon Dioxide (SiO2)

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

Chert

Chert (Microcrystalline Quartz, SiO2)

Chert (often referred to as 'Jasper' when red) (Chert (microcrystalline quartz, SiO₂)) — Sedimentary rock

Chert (often referred to as 'Jasper' when red)

Chert (microcrystalline quartz, SiO₂)

Sedimentary rock

Chert (Cryptocrystalline Silica (SiO2)) — sedimentary

Chert

Cryptocrystalline Silica (SiO2)

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

Chert (Flint Nobule)

Silicon Dioxide (SiO2)

Flint (Sedimentary cryptocrystalline quartz (SiO2)) — sedimentary

Flint

Sedimentary cryptocrystalline quartz (SiO2)

Chert (Microcrystalline or cryptocrystalline quartz) — sedimentary

Chert

Microcrystalline or cryptocrystalline quartz

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

Chert Breccia

Microcrystalline Quartz (SiO2) Breccia

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

Chert (Nodular Chert)

Silicon Dioxide (SiO2)

Banded Chert (Silicon Dioxide (SiO2) with impurities) — sedimentary

Banded Chert

Silicon Dioxide (SiO2) with impurities

Chert (Microcrystalline silica (SiO2)) — sedimentary

Chert

Microcrystalline silica (SiO2)

Chert (Chert Pebble) (Microcrystalline or cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Chert Pebble)

Microcrystalline or cryptocrystalline Quartz (SiO2)

Chert (Chert (SiO2)) — sedimentary

Chert

Chert (SiO2)

Green Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Green Chert

Microcrystalline Quartz (SiO2)

Chert Nodule in Limestone (Microcrystalline Silica (SiO2) within Calcium Carbonate (CaCO3)) — sedimentary

Chert Nodule in Limestone

Microcrystalline Silica (SiO2) within Calcium Carbonate (CaCO3)

Chert (River Siltstone/Flint) (Chert (SiO2)) — sedimentary

Chert (River Siltstone/Flint)

Chert (SiO2)

Breciated Jasper (Silicon Dioxide (SiO2) with iron oxide inclusions) — sedimentary

Breciated Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

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

Chert (Flint)

Silicon Dioxide (SiO2)

Weathered chert or flint pebble (Microcrystalline quartz (SiO₂), likely chert/flint with possible carbonate or quartz vein) — sedimentary

Weathered chert or flint pebble

Microcrystalline quartz (SiO₂), likely chert/flint with possible carbonate or quartz vein

Chert (Limonite-stained) (Microcrystalline Quartz (SiO2) with iron oxides) — sedimentary

Chert (Limonite-stained)

Microcrystalline Quartz (SiO2) with iron oxides

Chert (and Chert Breccia) (Silicon Dioxide (SiO2)) — sedimentary

Chert (and Chert Breccia)

Silicon Dioxide (SiO2)

Tumbled brown quartz/chert pebble (Microcrystalline quartz (SiO₂), possibly chert or jasper) — mineral

Tumbled brown quartz/chert pebble

Microcrystalline quartz (SiO₂), possibly chert or jasper

Brown chert (flint) (Microcrystalline quartz (SiO₂), commonly called chert; the specimen may be iron-stained) — sedimentary

Brown chert (flint)

Microcrystalline quartz (SiO₂), commonly called chert; the specimen may be iron-stained

Likely amber-colored chert or chalcedony fragment (Microcrystalline quartz (SiO₂), possibly iron-stained chert; exact identification is uncertain from the image) — mineral

Likely amber-colored chert or chalcedony fragment

Microcrystalline quartz (SiO₂), possibly iron-stained chert; exact identification is uncertain from the image

Chert (and Flint variant) (Chert (SiO2)) — sedimentary

Chert (and Flint variant)

Chert (SiO2)