Rock Identifier

Category

Mineral (Chalcedony Variety)

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

Learn about Mineral (Chalcedony Variety) 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

Polished yellow chalcedony (likely lemon agate or yellow jasper) (Microcrystalline quartz, SiO₂) — mineral

Polished yellow chalcedony (likely lemon agate or yellow jasper)

Microcrystalline quartz, SiO₂

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

Blue Lace Agate

Silicon Dioxide (Chalcedony variety), SiO2

Crazy Lace Agate (Silicon Dioxide (SiO2) with iron and aluminum inclusions) — sedimentary mineral

Crazy Lace Agate

Silicon Dioxide (SiO2) with iron and aluminum inclusions

sedimentary mineral

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

Chalcedony (likely agate/chert fragment)

Microcrystalline quartz, SiO₂

Tumbled chalcedony (likely carnelian or orange agate) (Microcrystalline quartz, SiO₂; chalcedony variety, possibly Fe-bearing carnelian) — mineral

Tumbled chalcedony (likely carnelian or orange agate)

Microcrystalline quartz, SiO₂; chalcedony variety, possibly Fe-bearing carnelian

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

Red Jasper

Quartz (Silicon Dioxide) with Hematite inclusions, SiO2

Tumbled orange-and-white chalcedony (likely carnelian or orange agate) (Microcrystalline quartz, SiO₂; chalcedony variety, possibly iron-colored carnelian) — mineral

Tumbled orange-and-white chalcedony (likely carnelian or orange agate)

Microcrystalline quartz, SiO₂; chalcedony variety, possibly iron-colored carnelian

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

Quartz (Chalcedony)

Silicon Dioxide (SiO2)

Chalcedony (Variety: Agate) (Silicon Dioxide (SiO2)) — mineral

Chalcedony (Variety: Agate)

Silicon Dioxide (SiO2)

Carnelian (a variety of Chalcedony) (Silicon Dioxide (SiO2) with iron oxide impurities) — mineral

Carnelian (a variety of Chalcedony)

Silicon Dioxide (SiO2) with iron oxide impurities

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

Oceanside Agate (Orbicular Agate)

Silicon Dioxide (SiO2) - Variety of Chalcedony

Carnelian Ring (SiO2 (Variety of Chalcedony)) — gemstone

Carnelian Ring

SiO2 (Variety of Chalcedony)

Agate Geode Nodule (Chalcedony / Quartz (SiO2)) — mineral

Agate Geode Nodule

Chalcedony / Quartz (SiO2)

Red Jasper (Silicon dioxide (SiO2)) — mineral

Red Jasper

Silicon dioxide (SiO2)

Jasper (Banded Argillite/Chert mix) (Silicon Dioxide (SiO2) with iron oxide inclusions) — sedimentary

Jasper (Banded Argillite/Chert mix)

Silicon Dioxide (SiO2) with iron oxide inclusions

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

Banded Jasper

Silicate Mineral (Microcrystalline Quartz / SiO2)

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

Agate

Silicon dioxide (SiO2) - variety Chalcedony

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

Carnelian Agate

Silicon Dioxide (SiO2) - variety of Chalcedony

Agate (Chalcedony) (Cryptocrystalline Quartz (SiO2)) — mineral

Agate (Chalcedony)

Cryptocrystalline Quartz (SiO2)

Polished agate slice (Agate, a banded variety of chalcedony (microcrystalline SiO₂)) — mineral

Polished agate slice

Agate, a banded variety of chalcedony (microcrystalline SiO₂)

Red jasper (likely tumbled or naturally worn) (Jasper, microcrystalline quartz/chalcedony (SiO₂), colored mainly by iron oxides) — mineral

Red jasper (likely tumbled or naturally worn)

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

Polished red jasper (Jasper, microcrystalline quartz (SiO₂)) — mineral

Polished red jasper

Jasper, microcrystalline quartz (SiO₂)

Polished chalcedony with iron-oxide cap (probable carnelian/agate) (Microcrystalline quartz, SiO₂, with hematite/goethite inclusions) — mineral

Polished chalcedony with iron-oxide cap (probable carnelian/agate)

Microcrystalline quartz, SiO₂, with hematite/goethite inclusions

Polished orbicular jasper (likely leopard-skin or brecciated jasper) (Microcrystalline quartz (SiO₂), with iron-oxide and other mineral inclusions; exact variety cannot be confirmed from the photo) — metamorphic

Polished orbicular jasper (likely leopard-skin or brecciated jasper)

Microcrystalline quartz (SiO₂), with iron-oxide and other mineral inclusions; exact variety cannot be confirmed from the photo

Jasper (Quartz (SiO2) with impurities) — sedimentary

Jasper

Quartz (SiO2) with impurities

Argetine Blue Agate (Chalcendony variant) (Silicon Dioxide (SiO₂)) — mineral

Argetine Blue Agate (Chalcendony variant)

Silicon Dioxide (SiO₂)

Yellow jasper (likely iron-stained chalcedony) (Jasper, an opaque microcrystalline variety of quartz (SiO₂); likely iron-oxide colored) — mineral

Yellow jasper (likely iron-stained chalcedony)

Jasper, an opaque microcrystalline variety of quartz (SiO₂); likely iron-oxide colored

Red Jasper (Silicon Dioxide (SiO2)) — sedimentary

Red Jasper

Silicon Dioxide (SiO2)

Tumbled orange-brown jasper (Microcrystalline quartz (chalcedony), SiO₂, colored by iron oxides) — mineral

Tumbled orange-brown jasper

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

Brown chalcedony (likely jasper or chert) (Microcrystalline quartz, SiO₂; opaque iron-oxide-rich variety) — mineral

Brown chalcedony (likely jasper or chert)

Microcrystalline quartz, SiO₂; opaque iron-oxide-rich variety

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

Tumbled brown jasper (probable)

Microcrystalline quartz/chalcedony, SiO₂, with iron-oxide impurities

Tumbled quartz-rich chalcedony (likely carnelian or orange jasper) (Microcrystalline quartz, SiO₂, colored mainly by iron oxides) — mineral

Tumbled quartz-rich chalcedony (likely carnelian or orange jasper)

Microcrystalline quartz, SiO₂, colored mainly by iron oxides

Tumbled chalcedony and agate (Microcrystalline quartz (SiO₂), chiefly chalcedony with possible quartz/agate banding) — mineral

Tumbled chalcedony and agate

Microcrystalline quartz (SiO₂), chiefly chalcedony with possible quartz/agate banding

Polished/tumbled agate or chert (Microcrystalline quartz (SiO₂), likely chalcedony with opaque impurities) — mineral

Polished/tumbled agate or chert

Microcrystalline quartz (SiO₂), likely chalcedony with opaque impurities

Jasper (Microcrystalline Quartz (SiO2)) — mineral

Jasper

Microcrystalline Quartz (SiO2)

Tumbled jasper pebble (likely ocean jasper or brecciated jasper) (Microcrystalline quartz/chalcedony, SiO₂, with iron-oxide and other mineral inclusions) — mineral

Tumbled jasper pebble (likely ocean jasper or brecciated jasper)

Microcrystalline quartz/chalcedony, SiO₂, with iron-oxide and other mineral inclusions

Tumbled carnelian/chalcedony (Microcrystalline quartz (SiO₂), iron-oxide-stained chalcedony) — mineral

Tumbled carnelian/chalcedony

Microcrystalline quartz (SiO₂), iron-oxide-stained chalcedony

Tumbled amber-colored chalcedony (likely carnelian) (Microcrystalline quartz, SiO₂; orange-red variety commonly termed carnelian) — mineral

Tumbled amber-colored chalcedony (likely carnelian)

Microcrystalline quartz, SiO₂; orange-red variety commonly termed carnelian

Orange chalcedony or jasper fragment (Microcrystalline quartz (SiO₂), likely chalcedony/jasper) — mineral

Orange chalcedony or jasper fragment

Microcrystalline quartz (SiO₂), likely chalcedony/jasper

Carnelian (Orange Chalcedony) (Silicon Dioxide (SiO2)) — mineral

Carnelian (Orange Chalcedony)

Silicon Dioxide (SiO2)

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

Yellow Banded Agate

Silicon Dioxide (SiO₂)

Agate (Silicon Dioxide (SiO2)) — mineral

Agate

Silicon Dioxide (SiO2)