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

Tumbled Agate

Silicon Dioxide (Chalcedony variety), SiO2

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

Yellow Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

Banded Jasper (Silicate Mineral (Microcrystalline Quartz / SiO2)) — sedimentary

Banded Jasper

Silicate Mineral (Microcrystalline Quartz / SiO2)

Dalmatian Jasper (Peralkaline Quartz-Feldspar Rock with Arfvedsonite) — igneous

Dalmatian Jasper

Peralkaline Quartz-Feldspar Rock with Arfvedsonite

Carnelian (Orange chalcedony, microcrystalline quartz (SiO₂)) — mineral

Carnelian

Orange chalcedony, microcrystalline quartz (SiO₂)

Polished red jasper (Jasper, microcrystalline quartz (SiO₂), colored chiefly by iron oxides) — metamorphic

Polished red jasper

Jasper, microcrystalline quartz (SiO₂), colored chiefly by iron oxides

Banded chert or jasper (likely iron-rich jasper) (Microcrystalline quartz (SiO₂), commonly with hematite/goethite and clay impurities) — sedimentary

Banded chert or jasper (likely iron-rich jasper)

Microcrystalline quartz (SiO₂), commonly with hematite/goethite and clay impurities

Polished brecciated jasper (Silica-rich microcrystalline quartz/chalcedony (SiO₂), with iron-oxide staining and angular mineral fragments) — metamorphic

Polished brecciated jasper

Silica-rich microcrystalline quartz/chalcedony (SiO₂), with iron-oxide staining and angular mineral fragments

Tumbled banded agate (likely carnelian or sardonyx) (Microcrystalline quartz, SiO₂ (chalcedony with iron-oxide banding)) — mineral

Tumbled banded agate (likely carnelian or sardonyx)

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

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

Tumbled brown jasper

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

Jasper with Iron Oxides (Silicon Dioxide (SiO2) with Fe2O3 inclusions) — sedimentary

Jasper with Iron Oxides

Silicon Dioxide (SiO2) with Fe2O3 inclusions

Small orange-red tumbled gemstones, likely carnelian (Carnelian, a microcrystalline variety of quartz (SiO₂), typically colored by iron oxides) — gemstone

Small orange-red tumbled gemstones, likely carnelian

Carnelian, a microcrystalline variety of quartz (SiO₂), typically colored by iron oxides

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

Jasper

Jasper (Silicon Dioxide, SiO2)

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

Red Jasper (Chert)

Silicon Dioxide (SiO2) with iron inclusions

Tumbled banded jasper, likely brecciated jasper (Microcrystalline quartz (SiO₂) with iron-oxide and clay inclusions) — mineral

Tumbled banded jasper, likely brecciated jasper

Microcrystalline quartz (SiO₂) with iron-oxide and clay inclusions

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

Red Jasper

Silicon Dioxide (SiO2) with Iron Oxide inclusions

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

Carnelian

Silicon Dioxide (Chalcedony variety), SiO2

Agate (Silicon Dioxide (SiO2) - variety: Chalcedony) — mineral

Agate

Silicon Dioxide (SiO2) - variety: Chalcedony

Banded Agate (specifically Carnelian Agate slice) (Chalcedony (cryptocrystalline variety of Quartz), SiO2) — mineral

Banded Agate (specifically Carnelian Agate slice)

Chalcedony (cryptocrystalline variety of Quartz), SiO2

Yellow Jasper (Chalcedony (SiO2 with iron oxide inclusions)) — mineral

Yellow Jasper

Chalcedony (SiO2 with iron oxide inclusions)

Polished orbicular jasper (likely ocean jasper) (Jasper, a microcrystalline variety of quartz (SiO₂), with iron-oxide and other mineral inclusions) — mineral

Polished orbicular jasper (likely ocean jasper)

Jasper, a microcrystalline variety of quartz (SiO₂), with iron-oxide and other mineral inclusions

Leopard Skin Jasper (Chalcedony (cryptocrystalline quartz) with inclusions) — Mineral

Leopard Skin Jasper

Chalcedony (cryptocrystalline quartz) with inclusions

Jasper (Silicon dioxide (SiO2)) — Sedimentary / Mineral

Jasper

Silicon dioxide (SiO2)

Sedimentary / Mineral

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

Jasper

Jasper (Silicon Dioxide, SiO2)

Polished plume agate (Microcrystalline quartz (SiO₂), variety of chalcedony) — mineral

Polished plume agate

Microcrystalline quartz (SiO₂), variety of chalcedony

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

Carnelian

SiO2 (Silicon Dioxide), a variety of Chalcedony

Tumbled orange chalcedony or jasper pebble (Microcrystalline quartz, SiO₂; possibly iron-stained chalcedony/jasper) — mineral

Tumbled orange chalcedony or jasper pebble

Microcrystalline quartz, SiO₂; possibly iron-stained chalcedony/jasper

Small rough jasper and agate specimens (identification tentative) (Microcrystalline quartz: chalcedony, SiO₂; opaque varieties are commonly called jasper, while translucent or banded varieties are agate.) — mineral

Small rough jasper and agate specimens (identification tentative)

Microcrystalline quartz: chalcedony, SiO₂; opaque varieties are commonly called jasper, while translucent or banded varieties are agate.

Weathered jasper/chert nodule (Microcrystalline quartz (SiO₂), likely iron- and clay-stained jasper or chert) — sedimentary

Weathered jasper/chert nodule

Microcrystalline quartz (SiO₂), likely iron- and clay-stained jasper or chert

Polished green agate (likely dyed) (Chalcedony, microcrystalline SiO₂; agate variety) — mineral

Polished green agate (likely dyed)

Chalcedony, microcrystalline SiO₂; agate variety

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

Carnelian Agate

Silicon Dioxide (SiO2) - Variety of Chalcedony

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

Chalcedony (Agate / Quartz Pebble)

Silicon Dioxide (SiO2)

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

Picture Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

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

Agate Geode

Silicon Dioxide (SiO2) - Chalcedony variety

Wood Jasper (Siliceous sedimentary rock (variety of Chert/Chalcedony)) — Sedimentary

Wood Jasper

Siliceous sedimentary rock (variety of Chert/Chalcedony)

Banded Agate (Polished Slice) (Chalcedony (SiO2) with Quartz) — mineral

Banded Agate (Polished Slice)

Chalcedony (SiO2) with Quartz

Yellow-brown jasper (likely iron-stained chert) (Microcrystalline quartz (SiO₂), varieties of chalcedony/chert colored by iron oxides) — mineral

Yellow-brown jasper (likely iron-stained chert)

Microcrystalline quartz (SiO₂), varieties of chalcedony/chert colored by iron oxides

Red-and-blue jasper (likely ocean jasper or dyed/polished jasper) (Microcrystalline quartz, chiefly SiO₂; jasper is an opaque chalcedony variety colored by iron oxides and other impurities) — mineral

Red-and-blue jasper (likely ocean jasper or dyed/polished jasper)

Microcrystalline quartz, chiefly SiO₂; jasper is an opaque chalcedony variety colored by iron oxides and other impurities

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

Chert Pebble (Jasper variety)

Silicon Dioxide (SiO2)

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

Yellow Jasper

Silicon Dioxide (SiO2) with goethite or iron oxide inclusions

Polished brecciated jasper pebble (Microcrystalline quartz (SiO₂), with iron-oxide inclusions) — mineral

Polished brecciated jasper pebble

Microcrystalline quartz (SiO₂), with iron-oxide inclusions

Yellow Jasper (Cryptocrystalline Quartz (SiO2 with Iron Hydroxide inclusions)) — sedimentary

Yellow Jasper

Cryptocrystalline Quartz (SiO2 with Iron Hydroxide inclusions)