Rock Identifier

Category

Mineral (Specifically A Variety Of Chalcedony, Which Is A Cryptocrystalline Quartz)

Browse mineral (specifically a variety of chalcedony, which is a cryptocrystalline quartz) specimens identified by the Rock Identifier community.

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

Carnelian (Red Chalcedony)

Silicon Dioxide (SiO2) with iron oxide impurities

Blue Agate (likely Dyed) (Silicon Dioxide (SiO2) - Chalcedony variety) — mineral

Blue Agate (likely Dyed)

Silicon Dioxide (SiO2) - Chalcedony variety

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Chert (Flint variety) (Microcrystalline Silica (SiO2)) — sedimentary

Chert (Flint variety)

Microcrystalline Silica (SiO2)

Ferruginous Quartz (Iron-stained Quartz) (Silicon Dioxide (SiO2) with Hematite/Limonite impurities) — mineral

Ferruginous Quartz (Iron-stained Quartz)

Silicon Dioxide (SiO2) with Hematite/Limonite impurities

Yellow Agate (Silicon Dioxide (SiO2) - variety of Chalcedony) — mineral

Yellow Agate

Silicon Dioxide (SiO2) - variety of Chalcedony

Flower Agate (Cherry Blossom Agate) (Chalcedony (Silicon Dioxide) with Opaque Inclusions - SiO2) — mineral

Flower Agate (Cherry Blossom Agate)

Chalcedony (Silicon Dioxide) with Opaque Inclusions - SiO2

Tumbled Stone Collection (featuring Tiger's Eye, Rose Quartz, and Moss Agate) (Mixed Silicates and Oxides (predominantly SiO2 group minerals)) — mineral

Tumbled Stone Collection (featuring Tiger's Eye, Rose Quartz, and Moss Agate)

Mixed Silicates and Oxides (predominantly SiO2 group minerals)

Chert (Tan/Grey variety) (Microcrystalline or cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Tan/Grey variety)

Microcrystalline or cryptocrystalline Quartz (SiO2)

Chert (Jasper/Flint variety) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Jasper/Flint variety)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (Arrowhead/Tool variety) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Arrowhead/Tool variety)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (Jasper/Flint variety) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Jasper/Flint variety)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (Iron-rich variety) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Iron-rich variety)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (Jasper/Flint variety) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Jasper/Flint variety)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (and Jasper/Flint variety) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (and Jasper/Flint variety)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (Flint/Jasper variety) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Flint/Jasper variety)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

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

Chert (Yellow or Tan variety)

Microcrystalline or cryptocrystalline Quartz (SiO2)

Chert (Chalky/Gray Variety) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Chalky/Gray Variety)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

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

Chert / Jasper

Silicon Dioxide (SiO₂)

Green Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Green Chert

Microcrystalline Quartz (SiO2)

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

Chert (Quartz Variety)

Microcrystalline Silica (SiO2)

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

Chert (Quartz Variety)

Chert (SiO2)

Chert (Quartz Variety) (Chert (mostly SiO2 / Silicon Dioxide)) — sedimentary

Chert (Quartz Variety)

Chert (mostly SiO2 / Silicon Dioxide)

Jasper (Silicon dioxide (SiO2)) — sedimentary

Jasper

Silicon dioxide (SiO2)

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

Chert (Flint)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chalcedony (Yellow Agate/Chert) (Silicon Dioxide (SiO2)) — mineral

Chalcedony (Yellow Agate/Chert)

Silicon Dioxide (SiO2)

Chert (Field-collected Arrowhead-shaped Fragment) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Field-collected Arrowhead-shaped Fragment)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Yellow Jasper (Silicon Dioxide (SiO2) - variety of Chalcedony) — sedimentary

Yellow Jasper

Silicon Dioxide (SiO2) - variety of Chalcedony

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

Milky Quartz

Quartz (Silicon Dioxide - SiO2)

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

Milky Quartz

Crystalline Silicon Dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Pink Granite (Phaneritic Felsic Igneous Rock (Granite)) — igneous

Pink Granite

Phaneritic Felsic Igneous Rock (Granite)

Carnelian (SiO2 (Chalcedony with iron oxide impurities)) — mineral

Carnelian

SiO2 (Chalcedony with iron oxide impurities)

Carnelian Agate (Chalcedony (SiO2) with iron oxide inclusions) — mineral

Carnelian Agate

Chalcedony (SiO2) with iron oxide inclusions

Banded Chert (Flint) (Cryptocrystalline Quartz (SiO2)) — sedimentary

Banded Chert (Flint)

Cryptocrystalline Quartz (SiO2)

Quartz (River Pebble) (Quartz (SiO₂ - Silicon Dioxide)) — Mineral

Quartz (River Pebble)

Quartz (SiO₂ - Silicon Dioxide)

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

Carnelian

SiO2 (Silicon Dioxide), a variety of Chalcedony

Moss Agate (Silicon Dioxide (SiO2) with inclusions of Manganese or Iron oxides) — mineral

Moss Agate

Silicon Dioxide (SiO2) with inclusions of Manganese or Iron oxides

Jasper (Yellow/Brown) (Silicon Dioxide (SiO2) with impurities) — mineral

Jasper (Yellow/Brown)

Silicon Dioxide (SiO2) with impurities

Chert (Jasper variety) with Iron Oxide staining (Cryptocrystalline Quartz (SiO2) with Goethite/Limonite impurities) — sedimentary

Chert (Jasper variety) with Iron Oxide staining

Cryptocrystalline Quartz (SiO2) with Goethite/Limonite impurities

Mixed Quartz and Jasper Pebbles (Silicon Dioxide (SiO2)) — Mineral

Mixed Quartz and Jasper Pebbles

Silicon Dioxide (SiO2)

Fancy Jasper (Silicon Dioxide (SiO2) with mineral inclusions) — sedimentary

Fancy Jasper

Silicon Dioxide (SiO2) with mineral inclusions