Rock Identifier

Category

Sedimentary (Microcrystalline Silicate)

Browse sedimentary (microcrystalline silicate) specimens identified by the Rock Identifier community.

Learn about Sedimentary (Microcrystalline Silicate) in the encyclopedia

Chert

Ironstone

Kambaba Jasper

Quartzite Sandstone

Quartzite Sandstone

Diatomite

Chert (Jasper/Quartzite river pebble) (Microcrystalline Silica (SiO2)) — sedimentary

Chert (Jasper/Quartzite river pebble)

Microcrystalline Silica (SiO2)

Chert (often called Flint or Jasper based on color) (Microcrystalline Silica (SiO2)) — sedimentary

Chert (often called Flint or Jasper based on color)

Microcrystalline Silica (SiO2)

Chert (Nodule) (Microcrystalline Silica (SiO2)) — sedimentary

Chert (Nodule)

Microcrystalline Silica (SiO2)

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

Chert (Gravel)

Microcrystalline silica (SiO2)

Chert (Flint Nodules) (Microcrystalline silica (SiO2)) — sedimentary

Chert (Flint Nodules)

Microcrystalline silica (SiO2)

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

Chert (Quartz)

Microcrystalline Silica (SiO2)

Chert (Iron-Stained) (Microcrystalline Silica (SiO2)) — sedimentary

Chert (Iron-Stained)

Microcrystalline Silica (SiO2)

Chert (and associated Sedimentary rocks) (Microcrystalline Silica (SiO2)) — sedimentary

Chert (and associated Sedimentary rocks)

Microcrystalline Silica (SiO2)

Chert (Quartz Variety) (Microcrystalline Silica (SiO2)) — sedimentary

Chert (Quartz Variety)

Microcrystalline Silica (SiO2)

Chert (with Quartz Druzy) (Microcrystalline Silica (SiO2)) — sedimentary

Chert (with Quartz Druzy)

Microcrystalline Silica (SiO2)

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

Chert (River Pebble)

Microcrystalline silica (SiO2)

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

Chert (River Pebble)

Microcrystalline silica (SiO2)

Chert (and Jasper pebble) (Microcrystalline Silica (SiO2)) — sedimentary

Chert (and Jasper pebble)

Microcrystalline Silica (SiO2)

Jasper (Red/Yellow Jasper Pebble) (Silicon Dioxide (SiO2 with Iron Oxide inclusions)) — sedimentary

Jasper (Red/Yellow Jasper Pebble)

Silicon Dioxide (SiO2 with Iron Oxide inclusions)

Chert (Jasper/Agate variety) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Jasper/Agate variety)

Microcrystalline Quartz (SiO2)

Jasper / Chert (Iron-stained Quartz) (SiO2 (Silicon Dioxide with Iron Oxide inclusions)) — sedimentary

Jasper / Chert (Iron-stained Quartz)

SiO2 (Silicon Dioxide with Iron Oxide inclusions)

Chert (Arrowhead) (Chert (SiO2)) — sedimentary

Chert (Arrowhead)

Chert (SiO2)

Agate (Chalcedony (SiO2) with impurities) — sedimentary

Agate

Chalcedony (SiO2) with impurities

Jasper (Microcrystalline Quartz (SiO2) with impurities) — sedimentary

Jasper

Microcrystalline Quartz (SiO2) with impurities

Carnelian (Silicon Dioxide (Chalcedony variety), SiO2) — mineral

Carnelian

Silicon Dioxide (Chalcedony variety), SiO2

Carnelian (Tumbled Pebble) (Quartz (Variety: Carnelian, SiO2)) — gemstone

Carnelian (Tumbled Pebble)

Quartz (Variety: Carnelian, SiO2)

Banded Agate (Tumbled) (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — mineral

Banded Agate (Tumbled)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Yellow Jasper (Silicon Dioxide (SiO2) with Iron Oxide inclusions) — mineral

Yellow Jasper

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Quartz Geode / Druzy Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz Geode / Druzy Quartz

Silicon Dioxide (SiO2)

Chalcedony with Druzy Quartz (Silicon Dioxide (SiO2)) — mineral

Chalcedony with Druzy Quartz

Silicon Dioxide (SiO2)

Chalcedony (Yellow/Amber variety) (Silicon Dioxide (SiO2)) — mineral

Chalcedony (Yellow/Amber variety)

Silicon Dioxide (SiO2)

Chalcedony on Matrix (Silicon Dioxide (SiO2)) — mineral

Chalcedony on Matrix

Silicon Dioxide (SiO2)

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

Chert (Flint)

Chert (SiO2)

Quartz (Smoky Quartz / Chalcedony) (Silicon Dioxide (SiO2)) — mineral

Quartz (Smoky Quartz / Chalcedony)

Silicon Dioxide (SiO2)

Quartz Geode Fragment (Silicon Dioxide (SiO2)) — mineral

Quartz Geode Fragment

Silicon Dioxide (SiO2)

Jasper (Silicon dioxide (SiO2)) — sedimentary

Jasper

Silicon dioxide (SiO2)

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

Chert / Flint

Silicon Dioxide (SiO2)

Agate / Banded Chalcedony (Agate (Silicon Dioxide / SiO2)) — mineral

Agate / Banded Chalcedony

Agate (Silicon Dioxide / SiO2)

Carnelian Agate (Silicon Dioxide (SiO2)) — mineral

Carnelian Agate

Silicon Dioxide (SiO2)

Quartzite (Quartz sand or Chert) (Quartzite (SiO2)) — metamorphic

Quartzite (Quartz sand or Chert)

Quartzite (SiO2)

Red Jasper (Silicon Dioxide (SiO2) with Iron impurities) — mineral

Red Jasper

Silicon Dioxide (SiO2) with Iron impurities

Chert (Common Opal/Jasper transition) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Common Opal/Jasper transition)

Silicon Dioxide (SiO2)

Banded Jasper (Silicon Dioxide with Iron Oxide impurities (SiO2)) — sedimentary

Banded Jasper

Silicon Dioxide with Iron Oxide impurities (SiO2)

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

Chert (or Flint)

Chert (SiO2)

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

Chert / Flint

Microcrystalline Quartz (SiO2)

Likely purple quartzite or purple chert (Quartzite/chert, predominantly microcrystalline SiO₂; exact identification requires testing) — metamorphic

Likely purple quartzite or purple chert

Quartzite/chert, predominantly microcrystalline SiO₂; exact identification requires testing

Banded Chert Arrowhead (Projectile Point) (Microcrystalline Quartz (SiO2)) — sedimentary

Banded Chert Arrowhead (Projectile Point)

Microcrystalline Quartz (SiO2)