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

Black Onyx (Silicon Dioxide (SiO2)) — mineral

Black Onyx

Silicon Dioxide (SiO2)

Polished carnelian agate (Chalcedony (microcrystalline quartz), SiO₂, iron-oxide colored) — gemstone

Polished carnelian agate

Chalcedony (microcrystalline quartz), SiO₂, iron-oxide colored

Polished brecciated jasper (Silica-rich microcrystalline quartz/chalcedony (SiO₂), with iron-oxide and other mineral inclusions) — mineral

Polished brecciated jasper

Silica-rich microcrystalline quartz/chalcedony (SiO₂), with iron-oxide and other mineral inclusions

Blue Agate (Dyed or Treated Chalcedony) (Silicon Dioxide (SiO2), microcrystalline quartz variety) — mineral

Blue Agate (Dyed or Treated Chalcedony)

Silicon Dioxide (SiO2), microcrystalline quartz variety

Polished pink chalcedony (possibly carnelian) (Microcrystalline quartz, SiO₂; chalcedony variety, with exact variety uncertain from the image) — mineral

Polished pink chalcedony (possibly carnelian)

Microcrystalline quartz, SiO₂; chalcedony variety, with exact variety uncertain from the image

Polished jasper pebble (Jasper, an opaque microcrystalline variety of quartz (SiO₂), colored by iron oxides) — mineral

Polished jasper pebble

Jasper, an opaque microcrystalline variety of quartz (SiO₂), colored by iron oxides

Tumbled brown jasper (Microcrystalline quartz/chalcedony (SiO₂), likely iron-stained jasper) — mineral

Tumbled brown jasper

Microcrystalline quartz/chalcedony (SiO₂), likely iron-stained jasper

Agate (Silicon Dioxide (SiO2)) — mineral

Agate

Silicon Dioxide (SiO2)

Jasper (Silicon dioxide (SiO2)) — sedimentary

Jasper

Silicon dioxide (SiO2)

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

Carnelian

Carnelian (Silicon Dioxide, SiO2)

Brown chalcedony/agatic jasper nodule (Microcrystalline quartz (SiO₂), likely iron-stained chalcedony with included or weathered host material) — mineral

Brown chalcedony/agatic jasper nodule

Microcrystalline quartz (SiO₂), likely iron-stained chalcedony with included or weathered host material

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

Chalcedony on Matrix

Silicon Dioxide (SiO2)

Tumbled yellow-orange chalcedony (likely carnelian) (Microcrystalline quartz, SiO₂; iron-bearing variety commonly called carnelian) — mineral

Tumbled yellow-orange chalcedony (likely carnelian)

Microcrystalline quartz, SiO₂; iron-bearing variety commonly called carnelian

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

Tumbled Agate

Silicon Dioxide (Chalcedony variety), SiO2

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

Blue Lace Agate

Chalcedony (Silicon Dioxide, SiO2)

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

Green Jasper

Jasper (Silicon Dioxide, SiO2)

Chalcedony (Silicon Dioxide (SiO2)) — mineral

Chalcedony

Silicon Dioxide (SiO2)

Banded Carnelian (Carnelian (Silicon Dioxide / SiO2)) — mineral

Banded Carnelian

Carnelian (Silicon Dioxide / SiO2)

Carnelian (Carnelian (Silicon Dioxide - SiO2)) — mineral

Carnelian

Carnelian (Silicon Dioxide - SiO2)

Jasper (Chalcedony (SiO2)) — mineral

Jasper

Chalcedony (SiO2)

Jasper (Multi-color Chert) (Silicon Dioxide (SiO2) with impurities) — sedimentary

Jasper (Multi-color Chert)

Silicon Dioxide (SiO2) with impurities

Blue Chalcedony (Silicon Dioxide (SiO2)) — mineral

Blue Chalcedony

Silicon Dioxide (SiO2)

Brown chalcedony (likely carnelian/iron-stained quartz) (Microcrystalline quartz, SiO₂; brown coloration from iron oxides/hydroxides) — mineral

Brown chalcedony (likely carnelian/iron-stained quartz)

Microcrystalline quartz, SiO₂; brown coloration from iron oxides/hydroxides

Polished agate pebble (likely dyed or naturally banded chalcedony) (Chalcedony, microcrystalline SiO₂; agate is banded chalcedony) — mineral

Polished agate pebble (likely dyed or naturally banded chalcedony)

Chalcedony, microcrystalline SiO₂; agate is banded chalcedony

Tumbled jasper or iron-rich chert (Microcrystalline quartz (SiO₂), likely colored by iron oxides) — mineral

Tumbled jasper or iron-rich chert

Microcrystalline quartz (SiO₂), likely colored by iron oxides

Tumbled blue chalcedony or pale aquamarine-like quartz (Chalcedony (microcrystalline SiO₂), possibly blue quartz; visual identification is uncertain) — mineral

Tumbled blue chalcedony or pale aquamarine-like quartz

Chalcedony (microcrystalline SiO₂), possibly blue quartz; visual identification is uncertain

Yellow jasper (likely iron-stained chert) (Microcrystalline quartz (SiO₂), chiefly chalcedony/quartz with iron-oxide pigments) — sedimentary

Yellow jasper (likely iron-stained chert)

Microcrystalline quartz (SiO₂), chiefly chalcedony/quartz with iron-oxide pigments

Polished brown jasper pebble (Microcrystalline quartz (SiO₂), commonly iron-oxide-rich jasper) — mineral

Polished brown jasper pebble

Microcrystalline quartz (SiO₂), commonly iron-oxide-rich jasper

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

Tumbled jasper (Microcrystalline quartz (SiO₂), colored by iron oxides and other impurities) — mineral

Tumbled jasper

Microcrystalline quartz (SiO₂), colored by iron oxides and other impurities

Tumbled yellow jasper (Microcrystalline quartz (SiO₂), typically chalcedony with iron-oxide impurities) — mineral

Tumbled yellow jasper

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

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

Polished orbicular jasper (likely ocean jasper)

Jasper, microcrystalline quartz (SiO₂), with iron-oxide and volcanic-mineral inclusions

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

Coffee Bean Jasper

Silicon Dioxide (SiO2) with impurities

Rhyolitic jasper / brecciated jasper (Silica-rich volcanic rock, chiefly microcrystalline quartz (SiO₂), with iron-oxide and clay/mineral impurities) — igneous

Rhyolitic jasper / brecciated jasper

Silica-rich volcanic rock, chiefly microcrystalline quartz (SiO₂), with iron-oxide and clay/mineral impurities

Red Jasper (Silicon Dioxide (SiO2) with Hematite (Fe2O3)) — sedimentary

Red Jasper

Silicon Dioxide (SiO2) with Hematite (Fe2O3)

Yellow Agate (Silicon Dioxide (SiO2)) — mineral

Yellow Agate

Silicon Dioxide (SiO2)

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

Jasper

Jasper (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

White Jade / White Chalcedony (Nephrite Jade (Ca2(Mg,Fe)5Si8O22(OH)2) or Chalcedony (SiO2)) — Mineral

White Jade / White Chalcedony

Nephrite Jade (Ca2(Mg,Fe)5Si8O22(OH)2) or Chalcedony (SiO2)

Blue Chalcedony (Silicon Dioxide (SiO2)) — mineral

Blue Chalcedony

Silicon Dioxide (SiO2)

Red jasper (likely tumbled jasper/chert) (Microcrystalline quartz, SiO₂, colored red by iron oxides; exact identification from the photo is uncertain.) — sedimentary

Red jasper (likely tumbled jasper/chert)

Microcrystalline quartz, SiO₂, colored red by iron oxides; exact identification from the photo is uncertain.