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

Blue Lace Agate

Blue Lace Agate

Chrysoprase

Sard

Carnelian

Blue Jasper

Jasper

Plume Agate

Sagenite Agate

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

Black Onyx

Onyx (Silicon Dioxide, SiO2)

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

Black Onyx (Tumbled)

Silicon Dioxide (SiO2)

Jasper and Mixed River Pebbles (Microcrystalline Quartz (Chalcedony / Jasper)) — sedimentary

Jasper and Mixed River Pebbles

Microcrystalline Quartz (Chalcedony / Jasper)

Jasper (Silicon Dioxide (SiO2)) — mineral

Jasper

Silicon Dioxide (SiO2)

Chalcedony (Botryoidal Agate vein) (Chalcedony (Microcrystalline Quartz) - SiO2) — mineral

Chalcedony (Botryoidal Agate vein)

Chalcedony (Microcrystalline Quartz) - SiO2

Chert or chalcedony nodule (Microcrystalline quartz (SiO₂), possibly weathered chert) — mineral

Chert or chalcedony nodule

Microcrystalline quartz (SiO₂), possibly weathered chert

Orange chalcedony (likely carnelian) (Microcrystalline quartz, SiO₂; iron-bearing chalcedony (carnelian)) — gemstone

Orange chalcedony (likely carnelian)

Microcrystalline quartz, SiO₂; iron-bearing chalcedony (carnelian)

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

Jasper

Jasper (Silicon Dioxide, SiO2)

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

Chalcedony (Agate/Chert)

Chalcedony (Silicon Dioxide, SiO2)

Agate (Turtle Carving) (Agate (Cryptocrystalline variety of Silica, SiO2)) — mineral

Agate (Turtle Carving)

Agate (Cryptocrystalline variety of Silica, SiO2)

Banded Calcite (often sold as 'Green Onyx') (Calcite (Calcium Carbonate, CaCO3)) — sedimentary

Banded Calcite (often sold as 'Green Onyx')

Calcite (Calcium Carbonate, CaCO3)

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

Chalcedony (Tumbled)

Cryptocrystalline Quartz (SiO2)

Carnelian (Carnelian (Chert/Chalcedony variety of Quartz, SiO2)) — mineral

Carnelian

Carnelian (Chert/Chalcedony variety of Quartz, SiO2)

Chalcedony (Chalcedony (SiO₂)) — Mineral

Chalcedony

Chalcedony (SiO₂)

Polished agate with druzy quartz (Microcrystalline chalcedony (SiO₂) with crystalline quartz and iron-oxide inclusions) — mineral

Polished agate with druzy quartz

Microcrystalline chalcedony (SiO₂) with crystalline quartz and iron-oxide inclusions

Tumbled bloodstone (heliotrope) (Chalcedony, microcrystalline quartz (SiO₂), with iron-oxide inclusions) — mineral

Tumbled bloodstone (heliotrope)

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

Tumbled jasper/quartz-rich pebble (Microcrystalline quartz (SiO₂), likely jasper with iron-oxide inclusions) — mineral

Tumbled jasper/quartz-rich pebble

Microcrystalline quartz (SiO₂), likely jasper with iron-oxide inclusions

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

Polished red jasper (likely brecciated jasper)

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

Dyed pink agate slice (Agate (microcrystalline quartz, SiO₂), commonly chalcedony with artificial dye) — mineral

Dyed pink agate slice

Agate (microcrystalline quartz, SiO₂), commonly chalcedony with artificial dye

Polished red jasper beads (Jasper, microcrystalline quartz (SiO₂), colored mainly by iron oxides) — mineral

Polished red jasper beads

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

Polished yellow jasper or opaque chalcedony bead (Microcrystalline quartz (SiO₂), likely iron-oxide-stained jasper) — mineral

Polished yellow jasper or opaque chalcedony bead

Microcrystalline quartz (SiO₂), likely iron-oxide-stained jasper

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

Red Jasper

Jasper (Silicon Dioxide with Iron Oxide inclusions, SiO2)

Jasper (Silicon Dioxide (SiO2)) — mineral

Jasper

Silicon Dioxide (SiO2)

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

Jasper

Jasper (Silicon Dioxide, SiO2)

Yellow Jasper (Silicon Dioxide (SiO2) with Ferric Hydroxide impurities) — mineral

Yellow Jasper

Silicon Dioxide (SiO2) with Ferric Hydroxide impurities

Green Calcite (Onyx Marble) (Calcium Carbonate (CaCO3)) — mineral

Green Calcite (Onyx Marble)

Calcium Carbonate (CaCO3)

Chalcedony (Agate/Carnelian variant) (Silicon Dioxide (SiO2)) — mineral

Chalcedony (Agate/Carnelian variant)

Silicon Dioxide (SiO2)

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

Carnelian

Carnelian (Silicon Dioxide, SiO2)

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

Red Jasper

SiO2 (Silicon Dioxide with Iron Oxide inclusions)

Blue Chalcedony and Picture Jasper Beads (Blue Chalcedony (SiO2), Picture Jasper (SiO2)) — Mineral

Blue Chalcedony and Picture Jasper Beads

Blue Chalcedony (SiO2), Picture Jasper (SiO2)

Banded Calcite (often sold as 'Onyx') (Calcite (Calcium Carbonate, CaCO3)) — sedimentary

Banded Calcite (often sold as 'Onyx')

Calcite (Calcium Carbonate, CaCO3)

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

Red Jasper

Jasper (Silicon Dioxide, SiO2)

Tumbled chalcedony (likely agate or jasper fragment) (Microcrystalline quartz, SiO₂ (chalcedony)) — mineral

Tumbled chalcedony (likely agate or jasper fragment)

Microcrystalline quartz, SiO₂ (chalcedony)

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

Red Jasper

Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions

Red Jasper (SiO2 (Silicon Dioxide with Iron Oxide impurities)) — sedimentary

Red Jasper

SiO2 (Silicon Dioxide with Iron Oxide impurities)

Fancy Jasper (Silicon Dioxide (SiO2) with iron and organic inclusions) — sedimentary

Fancy Jasper

Silicon Dioxide (SiO2) with iron and organic inclusions

Brown Jasper (Chert) (Silicon Dioxide (SiO2)) — sedimentary

Brown Jasper (Chert)

Silicon Dioxide (SiO2)

Yellow Jasper (within host rock) (Silicon Dioxide (SiO2) with iron hydroxides (Goethite)) — sedimentary

Yellow Jasper (within host rock)

Silicon Dioxide (SiO2) with iron hydroxides (Goethite)

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

Red Jasper (Chert)

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Red Jasper (Silicon dioxide (SiO2) with iron oxide inclusions) — sedimentary

Red Jasper

Silicon dioxide (SiO2) with iron oxide inclusions

Ocean Jasper (Orbicular Jasper) (Silicon Dioxide (SiO2) - Variety of Chalcedony/Quartz) — mineral

Ocean Jasper (Orbicular Jasper)

Silicon Dioxide (SiO2) - Variety of Chalcedony/Quartz

Carnelian (Carnelian (a variety of Chalcedony, SiO

₂)) — Mineral (specifically a variety of Chalcedony, which is a cryptocrystalline quartz)

Carnelian

Carnelian (a variety of Chalcedony, SiO ₂)

Mineral (specifically a variety of Chalcedony, which is a cryptocrystalline quartz)