Rock Identifier

Category

Mineral (Variety Of Chalcedony)

Browse mineral (variety of chalcedony) specimens identified by the Rock Identifier community.

Learn about Mineral (Variety Of Chalcedony) in the encyclopedia

Blue Chalcedony

Blue Chalcedony

Brookite

Agate

Prase

Chrysoprase

Sard

Blue Lace Agate

Blue Lace Agate

Carnelian

Blue Jasper

Jasper

Plume Agate

Sagenite Agate

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

Jasper

Silicon Dioxide (SiO2) with impurities

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

Jasper

Jasper (Silicon Dioxide, SiO2)

Agate (Sliced and Carved) (Silicon Dioxide (SiO2) - Banded Chalcedony) — mineral

Agate (Sliced and Carved)

Silicon Dioxide (SiO2) - Banded Chalcedony

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

Chalcedony (Agate/Carnelian)

Silicon Dioxide (SiO2)

Carnelian (Carnelian (a variety of Chalcedony, SiO

₂)) — Mineral (specifically a variety of Chalcedony, which is a cryptocrystalline quartz)

Carnelian

Carnelian (a variety of Chalcedony, SiO ₂)

Mineral (specifically a variety of Chalcedony, which is a cryptocrystalline quartz)

Chert (Gray Chalcedony) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Gray Chalcedony)

Microcrystalline Quartz (SiO2)

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

Red Jasper

Silicon Dioxide (SiO2) with iron inclusions

Yellow Jasper (Silicon Dioxide (SiO2) with Goethite/Limonite inclusions) — sedimentary

Yellow Jasper

Silicon Dioxide (SiO2) with Goethite/Limonite inclusions

Jasper (likely Brecciated or Multi-colored) (Jasper (SiO2)) — sedimentary

Jasper (likely Brecciated or Multi-colored)

Jasper (SiO2)

Tumbled white chalcedony (milky agate) (Microcrystalline quartz, SiO₂; chalcedony, locally grading toward milky agate) — mineral

Tumbled white chalcedony (milky agate)

Microcrystalline quartz, SiO₂; chalcedony, locally grading toward milky agate

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

Chalcedony / Agate Pebble

Silicon Dioxide (SiO2)

Agate Nodule (partially vuggy Quartz) (Silicon Dioxide (SiO2)) — Mineral/Sedimentary

Agate Nodule (partially vuggy Quartz)

Silicon Dioxide (SiO2)

Mineral/Sedimentary

Jasper (Cream/Yellow variety) (Silicon Dioxide (SiO2) with impurities) — sedimentary

Jasper (Cream/Yellow variety)

Silicon Dioxide (SiO2) with impurities

Jasper (Jasper (Silica/Silicon Dioxide, SiO2)) — sedimentary

Jasper

Jasper (Silica/Silicon Dioxide, SiO2)

Jasper, possibly Brecciated Jasper or Ocean Jasper due to patterns and color (Silicon Dioxide (SiO2), a variety of Chalcedony) — Sedimentary Rock

Jasper, possibly Brecciated Jasper or Ocean Jasper due to patterns and color

Silicon Dioxide (SiO2), a variety of Chalcedony

Sedimentary Rock

Agate (Polished Nodule) (Agate (Silicon Dioxide, SiO2)) — mineral

Agate (Polished Nodule)

Agate (Silicon Dioxide, SiO2)

Yellow Jasper (Chert variant) (Silicon Dioxide (SiO2) with iron inclusions) — sedimentary

Yellow Jasper (Chert variant)

Silicon Dioxide (SiO2) with iron inclusions

Chalcedony (likely agate/chert variety) (Microcrystalline quartz, SiO₂) — mineral

Chalcedony (likely agate/chert variety)

Microcrystalline quartz, SiO₂

Quartz (Chert/Chalcedony variety) (Silicon Dioxide (SiO2)) — mineral

Quartz (Chert/Chalcedony variety)

Silicon Dioxide (SiO2)

Amethyst geode fragment (Quartz, SiO₂; purple color from irradiation-related iron impurities) — mineral

Amethyst geode fragment

Quartz, SiO₂; purple color from irradiation-related iron impurities

Jasper (Silicon dioxide (SiO2)) — sedimentary

Jasper

Silicon dioxide (SiO2)

Red Jasper (Skull Carving) (Jasper, a cryptocrystalline variety of Quartz (SiO2)) — sedimentary

Red Jasper (Skull Carving)

Jasper, a cryptocrystalline variety of Quartz (SiO2)

Tumbled jasper or brecciated jasper (Microcrystalline quartz (chalcedony), SiO₂, with iron-oxide and dark mineral inclusions) — mineral

Tumbled jasper or brecciated jasper

Microcrystalline quartz (chalcedony), SiO₂, with iron-oxide and dark mineral inclusions

Agate (specifically a Banded Agate with a Quartz Druzy center) (Silicon Dioxide (SiO2)) — mineral

Agate (specifically a Banded Agate with a Quartz Druzy center)

Silicon Dioxide (SiO2)

Jasper with Quartz Vein (Silicon Dioxide (SiO2) with impurities) — sedimentary

Jasper with Quartz Vein

Silicon Dioxide (SiO2) with impurities

Jasper (Jasper (Silicate mineral, SiO2)) — sedimentary

Jasper

Jasper (Silicate mineral, SiO2)

Blue Chalcedony (Chalcedony (Silicon Dioxide, SiO2)) — mineral

Blue Chalcedony

Chalcedony (Silicon Dioxide, SiO2)

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

Blue Chalcedony (likely dyed)

Silicon Dioxide (SiO2) - Cryptocrystalline Quartz

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

Chalcedony on Matrix (Botryoidal Agate)

Silicon Dioxide (SiO2)

Jasper with Agate Inclusions (Jasper (Silicon Dioxide, SiO2) with Chalcedony/Agate) — sedimentary

Jasper with Agate Inclusions

Jasper (Silicon Dioxide, SiO2) with Chalcedony/Agate

Fancy Jasper (Ocean Jasper or River Jasper variant) (Silicon Dioxide with inclusions (SiO2)) — sedimentary

Fancy Jasper (Ocean Jasper or River Jasper variant)

Silicon Dioxide with inclusions (SiO2)

Chalcedony (Agate/Carnelian variety) (Cryptocrystalline Quartz (SiO2)) — mineral

Chalcedony (Agate/Carnelian variety)

Cryptocrystalline Quartz (SiO2)

Fancy Jasper (Silicon Dioxide (SiO2) with impurities) — sedimentary

Fancy Jasper

Silicon Dioxide (SiO2) with impurities

Likely tumbled jasper or iron-rich chert (Microcrystalline quartz (SiO₂), potentially hematite/goethite-bearing) — mineral

Likely tumbled jasper or iron-rich chert

Microcrystalline quartz (SiO₂), potentially hematite/goethite-bearing

Agate (Silicon Dioxide (SiO2)) — mineral

Agate

Silicon Dioxide (SiO2)

Quartz Pebbles and Agates (Silicon Dioxide (SiO2)) — mineral

Quartz Pebbles and Agates

Silicon Dioxide (SiO2)

Jasper (Silicon Dioxide (SiO2) with impurities (mostly Iron Oxides)) — Mineral

Jasper

Silicon Dioxide (SiO2) with impurities (mostly Iron Oxides)

Banded Agate (Yellow Agate) (Silicon Dioxide (SiO2)) — mineral

Banded Agate (Yellow Agate)

Silicon Dioxide (SiO2)

Red Jasper (Jasper (Silicon Dioxide) - SiO2) — mineral

Red Jasper

Jasper (Silicon Dioxide) - SiO2

Dalmatian Jasper (Dalmatian Stone) (Perthitic Feldspar with Arfvedsonite/Riebeckite) — igneous

Dalmatian Jasper (Dalmatian Stone)

Perthitic Feldspar with Arfvedsonite/Riebeckite

Blue Agate Geode (Dyed) (Cryptocrystalline Quartz (SiO2)) — mineral

Blue Agate Geode (Dyed)

Cryptocrystalline Quartz (SiO2)

Red Jasper (Silicon Dioxide (SiO2) with Hematite inclusions) — sedimentary

Red Jasper

Silicon Dioxide (SiO2) with Hematite inclusions