Rock Identifier

Category

Sedimentary (Cryptocrystalline Quartz)

Browse sedimentary (cryptocrystalline quartz) specimens identified by the Rock Identifier community.

Learn about Sedimentary (Cryptocrystalline Quartz) in the encyclopedia

Chalcedony

Black Onyx

Quartzite Sandstone

Quartzite Sandstone

Sandstone

Landscape Agate

Landscape Agate

Tube Agate

Sweetwater Agate

Sweetwater Agate

Frost Agate

Coldwater Agate

Honey Agate

Zebra Agate

Flame Agate

Leopard Skin Jasper (Silicon Dioxide (SiO2) with mineral inclusions) — sedimentary

Leopard Skin Jasper

Silicon Dioxide (SiO2) with mineral inclusions

Green Jasper (Silicon Dioxide (Microcrystalline Quartz, SiO2)) — sedimentary

Green Jasper

Silicon Dioxide (Microcrystalline Quartz, SiO2)

Dragon Blood Jasper (Epidote with Red Piedmontite (Chalcedony/Quartz variant)) — sedimentary

Dragon Blood Jasper

Epidote with Red Piedmontite (Chalcedony/Quartz variant)

Quartz Pebble (Silicon Dioxide (SiO2)) — sedimentary

Quartz Pebble

Silicon Dioxide (SiO2)

Yellow Chert Pebbles/Yellow Jasper (Microcrystalline Quartz (SiO2) with Goethite or Limonite inclusions) — sedimentary

Yellow Chert Pebbles/Yellow Jasper

Microcrystalline Quartz (SiO2) with Goethite or Limonite inclusions

Flint Pebble (Silicon Dioxide (Microcrystalline Quartz / Chert)) — sedimentary

Flint Pebble

Silicon Dioxide (Microcrystalline Quartz / Chert)

Banded Agate (Quartz) (Agate (Silicon Dioxide, SiO2)) — sedimentary

Banded Agate (Quartz)

Agate (Silicon Dioxide, SiO2)

Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

Tumbled Agate (Silicon Dioxide (SiO2)) — mineral

Tumbled Agate

Silicon Dioxide (SiO2)

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

Chert Nodule in Limestone

Microcrystalline Quartz (SiO2) within Calcium Carbonate (CaCO3)

Jasper (Silicon Dioxide (SiO2) microcrystalline quartz) — sedimentary

Jasper

Silicon Dioxide (SiO2) microcrystalline quartz

Banded Chert / Jasper Cognation (Microcrystalline Quartz (SiO2) with Hematite/Limonite) — sedimentary

Banded Chert / Jasper Cognation

Microcrystalline Quartz (SiO2) with Hematite/Limonite

Jasper with Dendritic Inclusions (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — sedimentary

Jasper with Dendritic Inclusions

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Chert (and Limestone) (Chert (consisting of Microcrystalline Quartz, SiO2)) — sedimentary

Chert (and Limestone)

Chert (consisting of Microcrystalline Quartz, SiO2)

Chert (often called Flint or Jasper when red) (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — sedimentary

Chert (often called Flint or Jasper when red)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Chert (Nodule) (Chert (primarily Microcrystalline Quartz - SiO2)) — sedimentary

Chert (Nodule)

Chert (primarily Microcrystalline Quartz - SiO2)

Chert (with Limestone/Marble traces) (Silicon Dioxide (SiO2) / Microcrystalline Quartz) — sedimentary

Chert (with Limestone/Marble traces)

Silicon Dioxide (SiO2) / Microcrystalline Quartz

Chert (Jasper) (Microcrystalline Quartz (SiO2) with Iron Oxide impurities) — sedimentary

Chert (Jasper)

Microcrystalline Quartz (SiO2) with Iron Oxide impurities

Jasper (Silicon Dioxide (SiO2) microcrystalline quartz) — sedimentary

Jasper

Silicon Dioxide (SiO2) microcrystalline quartz

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

Chert (and Chert Breccia)

Silicon Dioxide (SiO2)

Red Jasper (Microcrystalline Quartz (SiO2) with iron oxide inclusions) — sedimentary

Red Jasper

Microcrystalline Quartz (SiO2) with iron oxide inclusions

Vein-filled Porphyry or Brecciated Jasper Pebble (Brecciated volcanic rock with quartz/calcite veins) — igneous

Vein-filled Porphyry or Brecciated Jasper Pebble

Brecciated volcanic rock with quartz/calcite veins

Jasper (Iron-rich) (Silicon Dioxide (SiO2) with Fe2O3 (Hematite) inclusions) — sedimentary

Jasper (Iron-rich)

Silicon Dioxide (SiO2) with Fe2O3 (Hematite) inclusions

Tumbled jasper pebble (Jasper, microcrystalline quartz (SiO₂) with iron-oxide impurities) — mineral

Tumbled jasper pebble

Jasper, microcrystalline quartz (SiO₂) with iron-oxide impurities

Chert Pebble (with fossil shell fragment) (Microcrystalline Quartz (SiO2) with Calcified Invertebrate Impression) — sedimentary

Chert Pebble (with fossil shell fragment)

Microcrystalline Quartz (SiO2) with Calcified Invertebrate Impression

Chert with Fossil Brachiopod (Microcrystalline Quartz (SiO2) with Calcitic Brachiopod inclusion) — sedimentary

Chert with Fossil Brachiopod

Microcrystalline Quartz (SiO2) with Calcitic Brachiopod inclusion

Chert (or Fossiliferous Limestone) (Microcrystalline Quartz (SiO2) / Calcium Carbonate (CaCO3)) — sedimentary

Chert (or Fossiliferous Limestone)

Microcrystalline Quartz (SiO2) / Calcium Carbonate (CaCO3)

Carnelian and Mixed Agates (Cryptocrystalline Quartz (SiO2 with Iron Oxide impurities)) — mineral

Carnelian and Mixed Agates

Cryptocrystalline Quartz (SiO2 with Iron Oxide impurities)

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

Chalcedony (Chert/Flint variety)

Silicon Dioxide (SiO2)

Druzy Quartz on Agate/Chert (Silicon Dioxide (SiO2)) — mineral

Druzy Quartz on Agate/Chert

Silicon Dioxide (SiO2)

Jasper (Silicon Dioxide (Microcrystalline Quartz), SiO2) — sedimentary

Jasper

Silicon Dioxide (Microcrystalline Quartz), SiO2

Chert / Fossilized Burrow Cast (Microcrystalline Quartz (SiO2) with Trace Carbonates) — sedimentary

Chert / Fossilized Burrow Cast

Microcrystalline Quartz (SiO2) with Trace Carbonates

Agate (Silicon dioxide (SiO2) - Microcrystalline Quartz) — sedimentary

Agate

Silicon dioxide (SiO2) - Microcrystalline Quartz

Chert (specifically Flint or Common Chert) (Silicon dioxide (SiO2) - Microcrystalline quartz) — sedimentary

Chert (specifically Flint or Common Chert)

Silicon dioxide (SiO2) - Microcrystalline quartz

Chert (often called Flint or Jasper locally) (Chert (Microcrystalline Quartz, Formula: SiO2)) — sedimentary

Chert (often called Flint or Jasper locally)

Chert (Microcrystalline Quartz, Formula: SiO2)

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

Chert / Quartz Pebble

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Jasper (specifically Bloodstone or Heliotrope variety) (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — sedimentary

Jasper (specifically Bloodstone or Heliotrope variety)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Shiva Lingam (Cryptocrystalline Quartz (Jasperiod Silicate with Iron Oxide inclusions)) — sedimentary

Shiva Lingam

Cryptocrystalline Quartz (Jasperiod Silicate with Iron Oxide inclusions)

Jasper (Silicon Dioxide (SiO2) with impurities, Microcrystalline Quartz) — sedimentary

Jasper

Silicon Dioxide (SiO2) with impurities, Microcrystalline Quartz

Chert (Flint) (SiO2 (predominantly microcrystalline or cryptocrystalline quartz)) — Sedimentary rock

Chert (Flint)

SiO2 (predominantly microcrystalline or cryptocrystalline quartz)

Sedimentary rock

Red Jasper (Microcrystalline Quartz (Chalcedony), SiO2) — sedimentary

Red Jasper

Microcrystalline Quartz (Chalcedony), SiO2

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

Flint

SiO2 (Microcrystalline Quartz / Chert)