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

Mixed collection of Quartz varieties, Chalcedony, and metamorphic pebbles (Mixed gemstones (primarily Silicon Dioxide - SiO2)) — mineral

Mixed collection of Quartz varieties, Chalcedony, and metamorphic pebbles

Mixed gemstones (primarily Silicon Dioxide - SiO2)

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

Yellow Jasper

Silicon Dioxide (SiO2) with hydrated iron oxide impurities

Honey-colored chalcedony (possibly yellow/orange agate or carnelian) (Chalcedony, a microcrystalline variety of quartz; SiO₂. The color may result from iron-oxide inclusions. Exact identification is uncertain from a photograph alone.) — gemstone

Honey-colored chalcedony (possibly yellow/orange agate or carnelian)

Chalcedony, a microcrystalline variety of quartz; SiO₂. The color may result from iron-oxide inclusions. Exact identification is uncertain from a photograph alone.

Polished chert or jasper cobble (Microcrystalline quartz (SiO₂), commonly called chert; iron-oxide-bearing varieties are jasper) — sedimentary

Polished chert or jasper cobble

Microcrystalline quartz (SiO₂), commonly called chert; iron-oxide-bearing varieties are jasper

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

Jasper

Jasper (Silicon Dioxide, SiO2)

Red Jasper (Chert) (Silicon Dioxide (SiO2) with impure Iron Oxides) — sedimentary

Red Jasper (Chert)

Silicon Dioxide (SiO2) with impure Iron Oxides

Bloodstone / Heliotrope (Cryptocrystalline Quartz (SiO2 with inclusions)) — sedimentary

Bloodstone / Heliotrope

Cryptocrystalline Quartz (SiO2 with inclusions)

Polished ocean jasper or orbicular chalcedony (Microcrystalline quartz (SiO₂), likely chalcedony with feldspar or other mineral inclusions) — mineral

Polished ocean jasper or orbicular chalcedony

Microcrystalline quartz (SiO₂), likely chalcedony with feldspar or other mineral inclusions

Jasper (Jasper (Cryptocrystalline variety of Quartz, SiO2)) — sedimentary

Jasper

Jasper (Cryptocrystalline variety of Quartz, SiO2)

Tumbled jasper pebble (Silica-rich microcrystalline quartz/chalcedony, commonly brecciated or iron-stained jasper (SiO₂)) — metamorphic

Tumbled jasper pebble

Silica-rich microcrystalline quartz/chalcedony, commonly brecciated or iron-stained jasper (SiO₂)

Polished brown jasper (Jasper, microcrystalline quartz (SiO₂) with iron-oxide impurities) — metamorphic

Polished brown jasper

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

Banded Calcite (often sold as Onyx or Mexican Onyx) (Calcite (CaCO3)) — sedimentary

Banded Calcite (often sold as Onyx or Mexican Onyx)

Calcite (CaCO3)

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

Red Jasper

Silicon dioxide (SiO2) with iron oxide inclusions

Jasper with Quartz Veining (Silicon Dioxide (SiO2) with Hematite impurities) — sedimentary

Jasper with Quartz Veining

Silicon Dioxide (SiO2) with Hematite impurities

Yellow Jasper (with Iron staining) (Silicon Dioxide (SiO2)) — sedimentary

Yellow Jasper (with Iron staining)

Silicon Dioxide (SiO2)

Red Jasper (Jasper (Silica with Hematite inclusions), SiO2) — sedimentary

Red Jasper

Jasper (Silica with Hematite inclusions), SiO2

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

Red Jasper

Silicon dioxide (SiO2) with iron oxide (Hematite) inclusions

Brown Jasper / Chert Pebbles (Microcrystalline Quartz (SiO2) with iron oxide impurities) — sedimentary

Brown Jasper / Chert Pebbles

Microcrystalline Quartz (SiO2) with iron oxide impurities

Jasper (Banded Jasper) (Silicon Dioxide (SiO2) with impurities) — sedimentary

Jasper (Banded Jasper)

Silicon Dioxide (SiO2) with impurities

Yellow Jasper (Iron-stained Chert) (Silicon Dioxide (SiO2) with iron oxide (Limonite/Goethite) inclusions) — sedimentary

Yellow Jasper (Iron-stained Chert)

Silicon Dioxide (SiO2) with iron oxide (Limonite/Goethite) inclusions

Red Jasper (Polished) (Jasper (Iron-rich Microcrystalline Quartz, SiO2)) — sedimentary

Red Jasper (Polished)

Jasper (Iron-rich Microcrystalline Quartz, SiO2)

Yellow Jasper (Silicon Dioxide with Goethite (SiO2 + FeO(OH))) — sedimentary

Yellow Jasper

Silicon Dioxide with Goethite (SiO2 + FeO(OH))

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

Jasper

Jasper (Silicon Dioxide, SiO2)

Jasper with Quartz inclusions (Silicon Dioxide (SiO2) with impurities) — sedimentary

Jasper with Quartz inclusions

Silicon Dioxide (SiO2) with impurities

Red Jasper (Ocherous Chert) (Silicon Dioxide (SiO2) with Hematite impurities) — sedimentary

Red Jasper (Ocherous Chert)

Silicon Dioxide (SiO2) with Hematite impurities

Jasper (specifically a banded or dark variety) (Silicon Dioxide (SiO2) with impurities) — sedimentary

Jasper (specifically a banded or dark variety)

Silicon Dioxide (SiO2) with impurities

Jasper (Silicon Dioxide (SiO₂)) — sedimentary

Jasper

Silicon Dioxide (SiO₂)

Jasper (Jasper (Silicate - SiO2)) — sedimentary

Jasper

Jasper (Silicate - SiO2)

Dalmatian Jasper (Dalmatian Stone (a porphyritic peralkaline igneous rock)) — igneous

Dalmatian Jasper

Dalmatian Stone (a porphyritic peralkaline igneous rock)

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

Yellow Jasper

Silicon Dioxide (SiO2) with iron inclusions

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

Jasper

Silicon Dioxide (SiO2) with impurities

Jasper (Yellow/Brown variety) (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — sedimentary

Jasper (Yellow/Brown variety)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

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

Red Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

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

Red Jasper

Silicon Dioxide (SiO2) with Hematite inclusions

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

Red Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

Jasper (Silicon dioxide (SiO2)) — sedimentary

Jasper

Silicon dioxide (SiO2)

Agate (specifically Chalcedony/Banded Agate) (Silicon Dioxide (SiO2)) — sedimentary

Agate (specifically Chalcedony/Banded Agate)

Silicon Dioxide (SiO2)

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

Red Jasper (Chert)

Silicon Dioxide (SiO2) with iron oxide inclusions

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

Yellow Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

Dalmatian Stone (Peralkaline Quartz-Feldspar Rock) — igneous

Dalmatian Stone

Peralkaline Quartz-Feldspar Rock

Jasper Pebble (Tumbled Jasper (Microcrystalline Quartz, SiO2)) — sedimentary

Jasper Pebble

Tumbled Jasper (Microcrystalline Quartz, SiO2)

Red Jasper (possibly Petrified Wood) (Silicon Dioxide (SiO2) with Hematite inclusions) — sedimentary (secondary formation)

Red Jasper (possibly Petrified Wood)

Silicon Dioxide (SiO2) with Hematite inclusions

sedimentary (secondary formation)