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

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

Red Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

Dark flint or chert fragment (Microcrystalline quartz (SiO₂), commonly called flint when dark and nodular) — sedimentary

Dark flint or chert fragment

Microcrystalline quartz (SiO₂), commonly called flint when dark and nodular

Grey Chalcedony (Agate) (Silicon Dioxide (SiO2)) — mineral

Grey Chalcedony (Agate)

Silicon Dioxide (SiO2)

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

Chert (Flint)

Silicon dioxide (SiO2)

Mixed collection of minerals and rocks (Jasper, Carnelian, Granite, and Quartz) (Silicon Dioxide (SiO2) with varying impurities for silicates and igneous aggregates) — igneous, sedimentary, and metamorphic

Mixed collection of minerals and rocks (Jasper, Carnelian, Granite, and Quartz)

Silicon Dioxide (SiO2) with varying impurities for silicates and igneous aggregates

igneous, sedimentary, and metamorphic

Green Jasper / Green Quartz (Silicon dioxide (SiO2) with mineral impurities) — sedimentary

Green Jasper / Green Quartz

Silicon dioxide (SiO2) with mineral impurities

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

Chert (Flint)

Microcrystalline Quartz (SiO2)

Jasper with Quartz (Silicon Dioxide (SiO2) - Chalcedony variety) — mineral

Jasper with Quartz

Silicon Dioxide (SiO2) - Chalcedony variety

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

Chert (Nodule)

Silicon Dioxide (SiO2)

Blue Chalcedony (Silicon Dioxide (SiO2) - Cryptocrystalline Quartz) — mineral

Blue Chalcedony

Silicon Dioxide (SiO2) - Cryptocrystalline Quartz

Chalcedony Geode Fragment (Botryoidal) (Silicon Dioxide (SiO2) - Cryptocrystalline Quartz) — mineral

Chalcedony Geode Fragment (Botryoidal)

Silicon Dioxide (SiO2) - Cryptocrystalline Quartz

Chert (Flint) (Chert (Microcrystalline or cryptocrystalline Quartz, SiO2)) — sedimentary

Chert (Flint)

Chert (Microcrystalline or cryptocrystalline Quartz, SiO2)

Chert (Flint) (Silicon Dioxide (SiO2) - Cryptocrystalline Quartz) — sedimentary

Chert (Flint)

Silicon Dioxide (SiO2) - Cryptocrystalline Quartz

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

Breciated Chert

Brecciated Chert (Microcrystalline Quartz, SiO2)

Quartz Pebble (Iron-stained Chalcedony / Chert) (Silicon Dioxide (SiO2)) — sedimentary

Quartz Pebble (Iron-stained Chalcedony / Chert)

Silicon Dioxide (SiO2)

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

Flint

SiO2 (Microcrystalline Quartz / Chert)

Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Chert

Microcrystalline Quartz (SiO2)

Yellow Chert (Chert / Cryptocrystalline Quartz) (Silicon Dioxide (SiO2)) — sedimentary

Yellow Chert (Chert / Cryptocrystalline Quartz)

Silicon Dioxide (SiO2)

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

Chert (Flint)

Microcrystalline Quartz (SiO2)

Flint (Microcrystalline quartz (SiO2)) — sedimentary

Flint

Microcrystalline quartz (SiO2)

Banded Agate (Carnelian-Agate) (Silicon Dioxide (SiO2)) — mineral

Banded Agate (Carnelian-Agate)

Silicon Dioxide (SiO2)

Agate Geode (Silicon Dioxide (SiO2) - Chalcedony variety) — sedimentary

Agate Geode

Silicon Dioxide (SiO2) - Chalcedony variety

Chert (Microcrystalline quartz (SiO2)) — sedimentary

Chert

Microcrystalline quartz (SiO2)

Tumbled jasper or quartz-rich chert (Microcrystalline quartz (SiO₂), likely jasper/chert with iron-oxide staining) — mineral

Tumbled jasper or quartz-rich chert

Microcrystalline quartz (SiO₂), likely jasper/chert with iron-oxide staining

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

Chert (potentially Jasper or Agatized Chert)

Microcrystalline Quartz (SiO2)

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

Chert (Basanite variety)

Microcrystalline Quartz (SiO2)

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

Chert (Chalcedony / Flint)

Microcrystalline Quartz (SiO2)

Chert (Flint) (Chert (Microcrystalline or cryptocrystalline Quartz, SiO2)) — sedimentary

Chert (Flint)

Chert (Microcrystalline or cryptocrystalline Quartz, SiO2)

Agate (Silicon dioxide (SiO2)) — mineral

Agate

Silicon dioxide (SiO2)

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

Chert (Banded)

Microcrystalline Quartz (SiO2)

Banded Black Onyx (Chalcedony) (Silicon Dioxide (SiO₂)) — mineral

Banded Black Onyx (Chalcedony)

Silicon Dioxide (SiO₂)

Chert (Arrowhead Debitage or Spall) (Silicon Dioxide (SiO₂)) — sedimentary

Chert (Arrowhead Debitage or Spall)

Silicon Dioxide (SiO₂)

Quartz Geode (Silicon Dioxide (SiO2)) — sedimentary

Quartz Geode

Silicon Dioxide (SiO2)

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

Chert (Quartzite Pebble)

Microcrystalline Quartz (SiO2)

Blue Chalcedony (Silicon Dioxide (SiO2)) — mineral

Blue Chalcedony

Silicon Dioxide (SiO2)

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

River Pebble / Chert Pebble

Microcrystalline Quartz (SiO2)

Chert (Arrowhead Fragment) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Arrowhead Fragment)

Microcrystalline Quartz (SiO2)

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

Chert (Concretion or Nodular Variety)

Microcrystalline Quartz (SiO2)

Tumbled brown stone, likely jasper or iron-stained quartz (Microcrystalline quartz (SiO₂), possibly chalcedony/jasper with iron-oxide inclusions) — mineral

Tumbled brown stone, likely jasper or iron-stained quartz

Microcrystalline quartz (SiO₂), possibly chalcedony/jasper with iron-oxide inclusions

Chalcedony / Agate Nodule (Silicon Dioxide (SiO2)) — sedimentary

Chalcedony / Agate Nodule

Silicon Dioxide (SiO2)

Carnelian (Orange Agate) (Silicon Dioxide (SiO2)) — mineral

Carnelian (Orange Agate)

Silicon Dioxide (SiO2)

Chert Pebble (Microcrystalline Quartz (SiO2)) — sedimentary

Chert Pebble

Microcrystalline Quartz (SiO2)