Rock Identifier

Category

Sedimentary (Silica Rich Mineral Variety)

Browse sedimentary (silica rich mineral variety) specimens identified by the Rock Identifier community.

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Jasper (Green Jasper / Bloodstone variant base) (Silicon Dioxide (SiO2) with impurities of chlorite and iron oxides) — sedimentary

Jasper (Green Jasper / Bloodstone variant base)

Silicon Dioxide (SiO2) with impurities of chlorite and iron oxides

Agate (specifically a small Chalcedony nodule) (Agate (Cryptocrystalline variety of Quartz, SiO2)) — mineral

Agate (specifically a small Chalcedony nodule)

Agate (Cryptocrystalline variety of Quartz, SiO2)

Jasper with Quartz (Agate/Jasper mix) (Silicon Dioxide (SiO2) with iron oxide inclusions) — Sedimentary

Jasper with Quartz (Agate/Jasper mix)

Silicon Dioxide (SiO2) with iron oxide inclusions

Banded Jasper (Silicon Dioxide (SiO2) with iron oxide and clay impurities) — sedimentary

Banded Jasper

Silicon Dioxide (SiO2) with iron oxide and clay impurities

Red Jasper (possibly) (Jasper (a variety of Chalcedony, SiO2)) — Mineral

Red Jasper (possibly)

Jasper (a variety of Chalcedony, 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

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

Chert (and Chert Geode)

Silicon Dioxide (SiO2)

Chert (varieties include Flint and Jasper) (Microcrystalline or Cryptocrystalline Silicon Dioxide (SiO2)) — sedimentary

Chert (varieties include Flint and Jasper)

Microcrystalline or Cryptocrystalline Silicon Dioxide (SiO2)

Chert / Jasper and River Stones (Microcrystalline Quartz (SiO2)) — sedimentary

Chert / Jasper and River Stones

Microcrystalline Quartz (SiO2)

Chalcedony (River Stone) (Silicon Dioxide (SiO2)) — mineral

Chalcedony (River Stone)

Silicon Dioxide (SiO2)

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

Chert (Jasper variety)

Silicon Dioxide (SiO2)

Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Chert

Microcrystalline Quartz (SiO2)

Clear Quartz (Rock Crystal) (Quartz (SiO₂)) — Mineral

Clear Quartz (Rock Crystal)

Quartz (SiO₂)

Chert Conglomerate (or Breccia) (Sedimentary Clastic Rock (variety: Ferruginous Chert Breccia)) — sedimentary

Chert Conglomerate (or Breccia)

Sedimentary Clastic Rock (variety: Ferruginous Chert Breccia)

Yellow Jasper (Silicon Dioxide (SiO2) with iron hydroxides) — sedimentary

Yellow Jasper

Silicon Dioxide (SiO2) with iron hydroxides

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

Chert (Jasper variety)

Silicon Dioxide (SiO2)

Leopard Skin Jasper (Chalcedony (cryptocrystalline Quartz)) — Mineral

Leopard Skin Jasper

Chalcedony (cryptocrystalline Quartz)

Chert (often referred to as Flint or Jasper when pigmented) (Microcrystalline or cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (often referred to as Flint or Jasper when pigmented)

Microcrystalline or cryptocrystalline Quartz (SiO2)

Carnelian (Chalcedony variety) (SiO2 (Silicon Dioxide)) — Mineral

Carnelian (Chalcedony variety)

SiO2 (Silicon Dioxide)

Banded Agate (Silicon Dioxide (SiO2)) — mineral

Banded Agate

Silicon Dioxide (SiO2)

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

Chert Pebble (Jasper/Quartz variety)

Microcrystalline Quartz (SiO2)

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

Chert (Green Jasperiod)

Chert (Microcrystalline Quartz, SiO2)

Red Jasper (Argillaceous microcrystalline quartz (SiO2 with Fe2O3 inclusions)) — sedimentary

Red Jasper

Argillaceous microcrystalline quartz (SiO2 with Fe2O3 inclusions)

Chert (often called Flint or River Rock) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (often called Flint or River Rock)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Jasper (Silicon Dioxide (SiO2) with iron oxide impurities) — sedimentary

Jasper

Silicon Dioxide (SiO2) with iron oxide impurities

Chert / Flint (River Pebble) (Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert / Flint (River Pebble)

Cryptocrystalline Quartz (SiO2)

Chert (Tan/Grey) (Chert (Silicon Dioxide, SiO2)) — sedimentary

Chert (Tan/Grey)

Chert (Silicon Dioxide, SiO2)

Banded Flint (Polished Stripe Flint) (Silicon Dioxide (SiO2) - variety of Chert) — sedimentary

Banded Flint (Polished Stripe Flint)

Silicon Dioxide (SiO2) - variety of Chert

Chert (Yellow or Brown Jasper) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Yellow or Brown Jasper)

Microcrystalline Quartz (SiO2)

Chert (Arrowhead) (Chert (primarily Microcrystalline Silica, SiO2)) — sedimentary

Chert (Arrowhead)

Chert (primarily Microcrystalline Silica, SiO2)

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

Jasper or Chert

Silicon Dioxide (SiO2)

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

Jasper (Red/Brown)

Silicon Dioxide (SiO2) with iron oxide inclusions

Oceanside Agate (Orbicular Agate) (Silicon Dioxide (SiO2) - Variety of Chalcedony) — mineral

Oceanside Agate (Orbicular Agate)

Silicon Dioxide (SiO2) - Variety of Chalcedony

Chert (varieties: Flint or Chalcedony) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (varieties: Flint or Chalcedony)

Microcrystalline Quartz (SiO2)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Chert (Yellow/Tan variety) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Yellow/Tan variety)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Milky Quartz (Quartz (Silicon Dioxide, SiO2)) — mineral

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Carnelian (Orange Chalcedony) (Silicon Dioxide (SiO2) with iron oxide impurities) — mineral

Carnelian (Orange Chalcedony)

Silicon Dioxide (SiO2) with iron oxide impurities

Carnelian (a variety of Chalcedony) (SiO2 (Silicon Dioxide) - Cryptocrystalline Quartz) — mineral

Carnelian (a variety of Chalcedony)

SiO2 (Silicon Dioxide) - Cryptocrystalline Quartz

Chert (Chert (SiO2)) — sedimentary

Chert

Chert (SiO2)

Cherry Creek Jasper (also known as Red Creek Jasper or Cherry Creek Agate) (Jasper, microcrystalline quartz (SiO₂)) — Sedimentary Rock

Cherry Creek Jasper (also known as Red Creek Jasper or Cherry Creek Agate)

Jasper, microcrystalline quartz (SiO₂)

Sedimentary Rock