Rock Identifier

Category

Mineral_variety_of_chalcedony

Browse mineral_variety_of_chalcedony specimens identified by the Rock Identifier community.

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Prase

Blue Jasper

Tumbled brown jasper (Jasper, microcrystalline quartz (SiO₂) with iron-oxide impurities) — metamorphic

Tumbled brown jasper

Jasper, microcrystalline quartz (SiO₂) with iron-oxide impurities

Tumbled orange chalcedony (probable carnelian) (Cryptocrystalline quartz, SiO₂; reddish-orange variety commonly called carnelian) — gemstone

Tumbled orange chalcedony (probable carnelian)

Cryptocrystalline quartz, SiO₂; reddish-orange variety commonly called carnelian

Tumbled red jasper (likely) (Jasper, microcrystalline quartz/chalcedony (SiO₂), colored mainly by iron oxides) — mineral

Tumbled red jasper (likely)

Jasper, microcrystalline quartz/chalcedony (SiO₂), colored mainly by iron oxides

Tumbled jasper (Microcrystalline quartz (SiO₂), commonly iron-oxide-bearing chalcedony) — mineral

Tumbled jasper

Microcrystalline quartz (SiO₂), commonly iron-oxide-bearing chalcedony

Tumbled brown jasper (Jasper, microcrystalline quartz (SiO₂), commonly with iron-oxide impurities) — mineral

Tumbled brown jasper

Jasper, microcrystalline quartz (SiO₂), commonly with iron-oxide impurities

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

Quartz (Chalcedony/Agate)

Silicon Dioxide (SiO2)

Jasper Pebble (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper Pebble

Microcrystalline Quartz (SiO2)

Polished agate/geode fragment (Microcrystalline quartz (chalcedony), SiO₂, with possible calcite or quartz cavity lining) — mineral

Polished agate/geode fragment

Microcrystalline quartz (chalcedony), SiO₂, with possible calcite or quartz cavity lining

Tumbled jasper (likely picture jasper or iron-rich jasper) (Microcrystalline quartz/chalcedony, SiO₂, colored by iron oxides) — sedimentary

Tumbled jasper (likely picture jasper or iron-rich jasper)

Microcrystalline quartz/chalcedony, SiO₂, colored by iron oxides

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

Agate Geode

Silicon Dioxide (SiO2) - Chalcedony variety

Polished banded agate (Microcrystalline quartz (chalcedony), SiO₂) — mineral

Polished banded agate

Microcrystalline quartz (chalcedony), SiO₂

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

Blue Lace Agate

Chalcedony (Silicon Dioxide, SiO2)

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

Blue Lace Agate

Chalcedony (Silicon Dioxide, SiO2)

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

Jasper River Stone

Silicon Dioxide (SiO2) with iron oxide inclusions

Banded agate (chalcedony) (Microcrystalline quartz (SiO₂), variety chalcedony) — mineral

Banded agate (chalcedony)

Microcrystalline quartz (SiO₂), variety chalcedony

Tumbled blue chalcedony (likely blue lace agate) (Microcrystalline quartz, SiO₂; chalcedony with possible agate banding) — mineral

Tumbled blue chalcedony (likely blue lace agate)

Microcrystalline quartz, SiO₂; chalcedony with possible agate banding

Polished agate/jasper nodule (Microcrystalline quartz (chalcedony), SiO₂, with iron-oxide impurities) — mineral

Polished agate/jasper nodule

Microcrystalline quartz (chalcedony), SiO₂, with iron-oxide impurities

Tumbled jasper (likely picture/brecciated jasper) (Microcrystalline quartz (chalcedony), SiO₂, colored by iron oxides) — mineral

Tumbled jasper (likely picture/brecciated jasper)

Microcrystalline quartz (chalcedony), SiO₂, colored by iron oxides

Tumbled chalcedony (likely mossy/inclusion-rich variety) (Chalcedony, microcrystalline quartz (SiO₂)) — mineral

Tumbled chalcedony (likely mossy/inclusion-rich variety)

Chalcedony, microcrystalline quartz (SiO₂)

Chalcedony (specifically Blue Chalcedony or Common Opal variety) (Silicon Dioxide (SiO₂)) — mineral

Chalcedony (specifically Blue Chalcedony or Common Opal variety)

Silicon Dioxide (SiO₂)

Eye Agate (Sulemani Agate) (Banded Chalcedony (SiO2)) — mineral

Eye Agate (Sulemani Agate)

Banded Chalcedony (SiO2)

Banded Agate (Agate (Silicon Dioxide, SiO2)) — sedimentary

Banded Agate

Agate (Silicon Dioxide, SiO2)

Chalcedony (likely blue agate) knapped into an arrowhead (Microcrystalline quartz, SiO₂ (chalcedony)) — mineral

Chalcedony (likely blue agate) knapped into an arrowhead

Microcrystalline quartz, SiO₂ (chalcedony)

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

Yellow Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

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

Jasper

Jasper (Silicon Dioxide, SiO2)

Polished orbicular jasper (Siliceous microcrystalline quartz/chalcedony (SiO₂), commonly with iron-oxide and volcanic inclusions) — sedimentary

Polished orbicular jasper

Siliceous microcrystalline quartz/chalcedony (SiO₂), commonly with iron-oxide and volcanic inclusions

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

Red Jasper

Silicon Dioxide (SiO2) with Hematite inclusions

Blue Lace Agate (Silicon Dioxide (Chalcedony variety), SiO2) — gemstone

Blue Lace Agate

Silicon Dioxide (Chalcedony variety), SiO2

Dyed Dragon Vein Agate (Silicon Dioxide (SiO2) with artificial pigment) — mineral

Dyed Dragon Vein Agate

Silicon Dioxide (SiO2) with artificial pigment

Bloodstone (Heliotrope (a variety of Chalcedony, SiO₂ with inclusions)) — Metamorphic Rock

Bloodstone

Heliotrope (a variety of Chalcedony, SiO₂ with inclusions)

Metamorphic Rock

Carnelian Agate (Silicon Dioxide (SiO2) - variety of Chalcedony) — sedimentary

Carnelian Agate

Silicon Dioxide (SiO2) - variety of Chalcedony

Tumbled orange chalcedony (likely carnelian) (Carnelian, a microcrystalline quartz variety; SiO₂, commonly colored by iron oxides) — gemstone

Tumbled orange chalcedony (likely carnelian)

Carnelian, a microcrystalline quartz variety; SiO₂, commonly colored by iron oxides

Brecciated jasper (Chalcedony–quartz aggregate, predominantly SiO₂, with iron-oxide coloring) — mineral

Brecciated jasper

Chalcedony–quartz aggregate, predominantly SiO₂, with iron-oxide coloring

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

Quartz (Agate/Chalcedony)

Silicon Dioxide (SiO2)

Banded Agate (Chalcedony (SiO2 with impurities)) — mineral

Banded Agate

Chalcedony (SiO2 with impurities)

Jasper (Chalcedony (Microcrystalline Quartz) - SiO2) — mineral

Jasper

Chalcedony (Microcrystalline Quartz) - SiO2

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

Chalcedony (Agate/Chert)

Chalcedony (Silicon Dioxide, SiO2)

Botryoidal Chalcedony (Silicon Dioxide (SiO2)) — mineral

Botryoidal Chalcedony

Silicon Dioxide (SiO2)

Jasper Agate (Cryptocrystalline quartz, SiO2) — mineral

Jasper Agate

Cryptocrystalline quartz, SiO2

Blue Lace Agate (Microcrystalline Quartz (Chalcedony), SiO2) — mineral

Blue Lace Agate

Microcrystalline Quartz (Chalcedony), SiO2

Agate (Silicon dioxide (SiO2) - variety Chalcedony) — mineral

Agate

Silicon dioxide (SiO2) - variety Chalcedony

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

Red Jasper

Silicon Dioxide (SiO2) with Hematite inclusions