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

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

Tumbled yellow-orange jasper

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

Red jasper (tumbled) (Microcrystalline quartz/chalcedony, SiO₂, colored chiefly by iron oxides) — mineral

Red jasper (tumbled)

Microcrystalline quartz/chalcedony, SiO₂, colored chiefly by iron oxides

Jasper pebble, likely brecciated jasper (Microcrystalline quartz (SiO₂), commonly with iron-oxide impurities) — mineral

Jasper pebble, likely brecciated jasper

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

Banded agate tower (likely onyx/chalcedony) (Microcrystalline quartz, SiO₂; commonly called banded agate or black-and-white onyx) — mineral

Banded agate tower (likely onyx/chalcedony)

Microcrystalline quartz, SiO₂; commonly called banded agate or black-and-white onyx

Tree Agate (Dendritic Agate (Silicon Dioxide, SiO2)) — mineral

Tree Agate

Dendritic Agate (Silicon Dioxide, SiO2)

Polished banded jasper pebble (Jasper, a microcrystalline quartz variety (SiO₂), with iron-oxide and clay/mineral impurities) — mineral

Polished banded jasper pebble

Jasper, a microcrystalline quartz variety (SiO₂), with iron-oxide and clay/mineral impurities

Banded Agate / Chalcedony (Silicon Dioxide (SiO2) with trace impurities) — mineral

Banded Agate / Chalcedony

Silicon Dioxide (SiO2) with trace impurities

Polished brecciated jasper (Jasper, microcrystalline quartz (SiO₂), with iron-oxide inclusions) — mineral

Polished brecciated jasper

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

Red chalcedony (likely carnelian) (Chalcedony, microcrystalline quartz (SiO₂); red color commonly from iron oxides) — mineral

Red chalcedony (likely carnelian)

Chalcedony, microcrystalline quartz (SiO₂); red color commonly from iron oxides

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

Tumbled jasper (likely brecciated or red jasper)

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

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

Polished jasper pebble

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

Red jasper (likely brecciated jasper/chalcedony) (Microcrystalline quartz, SiO₂, chiefly chalcedony with iron-oxide inclusions) — mineral

Red jasper (likely brecciated jasper/chalcedony)

Microcrystalline quartz, SiO₂, chiefly chalcedony with iron-oxide inclusions

Tumbled orange chalcedony or carnelian (Microcrystalline quartz (SiO₂), likely iron-stained chalcedony/carnelian) — mineral

Tumbled orange chalcedony or carnelian

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

Banded Agate (Silicon Dioxide (SiO2)) — mineral

Banded Agate

Silicon Dioxide (SiO2)

Grey Agate (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — mineral

Grey Agate

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Red jasper (Microcrystalline quartz (SiO₂), iron-oxide-rich chalcedony) — mineral

Red jasper

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

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

Tumbled jasper (likely brecciated or orbicular jasper)

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

Agate Bookend / Quartz Geode (Silicon Dioxide (SiO2)) — mineral

Agate Bookend / Quartz Geode

Silicon Dioxide (SiO2)

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

Jasper

Jasper (Silicon Dioxide, SiO2)

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

Red Jasper

Silicon Dioxide (SiO2) with Hematite (Fe2O3)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Black Jasper (Etched) (Silicon Dioxide (SiO2) with impurities) — mineral

Black Jasper (Etched)

Silicon Dioxide (SiO2) with impurities

Yellow Jasper (Silicon Dioxide with iron inclusions (SiO2)) — mineral

Yellow Jasper

Silicon Dioxide with iron inclusions (SiO2)

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

Red Jasper

Silicon Dioxide (SiO2) with Iron Oxide inclusions

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

Yellow Jasper

Chalcedony (SiO2) with iron oxide inclusions

Banded Calcite (Mexican Onyx) (Calcite (CaCO3)) — mineral

Banded Calcite (Mexican Onyx)

Calcite (CaCO3)

Banded Calcite (often sold as Onyx Marble) (Calcium Carbonate (CaCO3)) — mineral

Banded Calcite (often sold as Onyx Marble)

Calcium Carbonate (CaCO3)

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

Banded Agate

Agate (Silicon Dioxide, SiO2)

Jasper (Jasper (Silica/Quartz) - SiO2) — mineral

Jasper

Jasper (Silica/Quartz) - SiO2

Black Onyx (Onyx (Silicon Dioxide, SiO2)) — mineral

Black Onyx

Onyx (Silicon Dioxide, SiO2)

Jasper (Chalcedony (Microcrystalline Quartz) - SiO2) — sedimentary or metamorphic

Jasper

Chalcedony (Microcrystalline Quartz) - SiO2

sedimentary or metamorphic

Yellow Jasper (Silicon Dioxide (SiO2) - variety of Chalcedony) — sedimentary

Yellow Jasper

Silicon Dioxide (SiO2) - variety of Chalcedony

Blue chalcedony (likely dyed or coated) (Microcrystalline quartz, SiO₂ (chalcedony)) — mineral

Blue chalcedony (likely dyed or coated)

Microcrystalline quartz, SiO₂ (chalcedony)

Jasper (Milky/Cream Variety) (Silicon Dioxide (SiO2) - variety of Chalcedony) — sedimentary (chemical/biological)

Jasper (Milky/Cream Variety)

Silicon Dioxide (SiO2) - variety of Chalcedony

sedimentary (chemical/biological)

Polished carnelian/chalcedony (Chalcedony, microcrystalline quartz (SiO₂), with iron-oxide coloration) — gemstone

Polished carnelian/chalcedony

Chalcedony, microcrystalline quartz (SiO₂), with iron-oxide coloration

Tumbled orange chalcedony (likely carnelian) (Chalcedony, microcrystalline quartz (SiO₂), commonly colored by iron oxides) — gemstone

Tumbled orange chalcedony (likely carnelian)

Chalcedony, microcrystalline quartz (SiO₂), commonly colored by iron oxides

Carnelian (orange chalcedony) (Chalcedony, microcrystalline quartz (SiO₂), iron-oxide colored) — gemstone

Carnelian (orange chalcedony)

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

Blue Lace Agate (Chalcedony (SiO2) with trace minerals) — mineral

Blue Lace Agate

Chalcedony (SiO2) with trace minerals

Polished banded agate, likely moss or dendritic agate (Microcrystalline quartz (chalcedony), SiO₂, with iron/manganese inclusions) — mineral

Polished banded agate, likely moss or dendritic agate

Microcrystalline quartz (chalcedony), SiO₂, with iron/manganese inclusions

Banded Agate (Silicon Dioxide (SiO2) - Variety of Chalcedony) — sedimentary

Banded Agate

Silicon Dioxide (SiO2) - Variety of Chalcedony

Zebra Jasper (Jasper (variety of Quartz/Chalcedony), SiO2) — sedimentary

Zebra Jasper

Jasper (variety of Quartz/Chalcedony), SiO2

Botryoidal chalcedony (likely common opal) (Silica, SiO₂; chalcedony is microcrystalline quartz, while opal is hydrated amorphous silica (SiO₂·nH₂O)) — mineral

Botryoidal chalcedony (likely common opal)

Silica, SiO₂; chalcedony is microcrystalline quartz, while opal is hydrated amorphous silica (SiO₂·nH₂O)