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

Dzi Bead (Etched Chalcedony) (Cryptocrystalline Quartz (SiO2) with chemical etching) — mineral

Dzi Bead (Etched Chalcedony)

Cryptocrystalline Quartz (SiO2) with chemical etching

Blue Onyx (Dyed Agate/Chalky Chalcedony) (Silicon Dioxide (SiO2) with artificial pigment) — mineral

Blue Onyx (Dyed Agate/Chalky Chalcedony)

Silicon Dioxide (SiO2) with artificial pigment

Black Onyx (Silicon Dioxide (SiO2)) — mineral

Black Onyx

Silicon Dioxide (SiO2)

Agate (Cryptocrystalline Quartz (SiO2)) — mineral

Agate

Cryptocrystalline Quartz (SiO2)

Fossilized Coral (Petrified Coral) (Anthozoa fossil) — fossil

Fossilized Coral (Petrified Coral)

Anthozoa fossil

Petrified Wood (Silicified Wood (SiO2)) — fossil

Petrified Wood

Silicified Wood (SiO2)

Petrified Wood (Silicified Wood (SiO2)) — sedimentary

Petrified Wood

Silicified Wood (SiO2)

Rose Quartz (Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese) — mineral

Rose Quartz

Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese

Botryoidal chalcedony (likely druzy agate) (Microcrystalline quartz, SiO₂, with iron-oxide inclusions) — mineral

Botryoidal chalcedony (likely druzy agate)

Microcrystalline quartz, SiO₂, with iron-oxide inclusions

Jadeite (Jadeite (NaAlSi2O6)) — metamorphic

Jadeite

Jadeite (NaAlSi2O6)

Feldspar (likely Amazonite or Plagioclase) (Potassium Aluminum Silicate (KAlSi3O8) or Sodium/Calcium Aluminum Silicate) — mineral

Feldspar (likely Amazonite or Plagioclase)

Potassium Aluminum Silicate (KAlSi3O8) or Sodium/Calcium Aluminum Silicate

Milky Quartz (Quartz (Silicon Dioxide - SiO2)) — mineral

Milky Quartz

Quartz (Silicon Dioxide - SiO2)

Sandstone (Arenite (SiO2 based)) — sedimentary

Sandstone

Arenite (SiO2 based)

Polished agate or jasper cabochon (Cryptocrystalline quartz, SiO₂, possibly iron-rich jasper inclusions) — gemstone

Polished agate or jasper cabochon

Cryptocrystalline quartz, SiO₂, possibly iron-rich jasper inclusions

Petrified Wood (Silicified Wood (SiO2)) — fossil

Petrified Wood

Silicified Wood (SiO2)

Quartz Pebble (Beach Agate / Chalcedony Pebble) (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble (Beach Agate / Chalcedony Pebble)

Silicon Dioxide (SiO2)

Raw Carnelian (Quartz (Chalcedony) - SiO2 with Fe2O3 inclusions) — mineral

Raw Carnelian

Quartz (Chalcedony) - SiO2 with Fe2O3 inclusions

Jasper in Quartz / Brecciated Jasper (Silicon Dioxide (SiO2) with iron oxide impurities) — mineral

Jasper in Quartz / Brecciated Jasper

Silicon Dioxide (SiO2) with iron oxide impurities

Quartz Geode (Silicon Dioxide (SiO2) in Geode formation) — mineral

Quartz Geode

Silicon Dioxide (SiO2) in Geode formation

Carnelian Agate (Chalcedony (SiO2 with Iron Oxide impurities)) — mineral

Carnelian Agate

Chalcedony (SiO2 with Iron Oxide impurities)

Quartz Geode Fragment (Silicon Dioxide (SiO2)) — mineral

Quartz Geode Fragment

Silicon Dioxide (SiO2)

Carnelian (Carnelian (Cryptocrystalline Quartz, SiO2)) — mineral

Carnelian

Carnelian (Cryptocrystalline Quartz, SiO2)

Moss Agate (Silicon Dioxide (SiO2) with inclusions) — mineral

Moss Agate

Silicon Dioxide (SiO2) with inclusions

Moss Agate (Chalcedony (SiO2) with inclusions of manganese or iron oxide) — mineral

Moss Agate

Chalcedony (SiO2) with inclusions of manganese or iron oxide

Tumbled orange chalcedony and a gray stone disk (Chalcedony (microcrystalline quartz, SiO₂); disk likely fine-grained sandstone or slate) — mineral

Tumbled orange chalcedony and a gray stone disk

Chalcedony (microcrystalline quartz, SiO₂); disk likely fine-grained sandstone or slate

Tumbled Chalcedony Pebble (Silicon Dioxide (SiO2)) — mineral

Tumbled Chalcedony Pebble

Silicon Dioxide (SiO2)

Chalcedony Pebble (Carnelian / Quartz Pebble) (Silicon Dioxide (SiO2)) — mineral

Chalcedony Pebble (Carnelian / Quartz Pebble)

Silicon Dioxide (SiO2)

Chalcedony (Agate / Quartz Geode Fragment) (Silicon Dioxide (SiO2)) — mineral

Chalcedony (Agate / Quartz Geode Fragment)

Silicon Dioxide (SiO2)

Beach Pebble (Chalcedony / Chert) (Silicon Dioxide (SiO2)) — mineral

Beach Pebble (Chalcedony / Chert)

Silicon Dioxide (SiO2)

Chalcedony Geode Fragment (Cryptocrystalline Quartz (SiO2)) — mineral

Chalcedony Geode Fragment

Cryptocrystalline Quartz (SiO2)

Flower Agate (Chalcedony (cryptocrystalline Quartz) with Spherulite inclusions; SiO2) — mineral

Flower Agate

Chalcedony (cryptocrystalline Quartz) with Spherulite inclusions; SiO2

Dendritic Agate (Silicon Dioxide (SiO2) with inclusions of manganese or iron oxides) — mineral

Dendritic Agate

Silicon Dioxide (SiO2) with inclusions of manganese or iron oxides

Banded Agate (Tumbled) (Agate (Silicon Dioxide, SiO2 - Cryptocrystalline Quartz)) — mineral

Banded Agate (Tumbled)

Agate (Silicon Dioxide, SiO2 - Cryptocrystalline Quartz)

Carnelian Agate (Silicon Dioxide (SiO2) with iron oxide inclusions) — mineral

Carnelian Agate

Silicon Dioxide (SiO2) with iron oxide inclusions

Orange Calcite (Mexican Onyx) (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite (Mexican Onyx)

Calcium Carbonate (CaCO3)

Purple Agate (Dyed Chalcedony) (SiO2 (Silicon Dioxide) with organic dyes) — mineral

Purple Agate (Dyed Chalcedony)

SiO2 (Silicon Dioxide) with organic dyes

Blue Onyx (Agate) (Cryptocrystalline Quartz (SiO2)) — mineral

Blue Onyx (Agate)

Cryptocrystalline Quartz (SiO2)

Yellow Quartz (Chalcedony) (Quartz / Chalcedony (Silicon Dioxide, SiO2)) — mineral

Yellow Quartz (Chalcedony)

Quartz / Chalcedony (Silicon Dioxide, SiO2)

Chalcedony (Agate Nodules) (Silicon Dioxide (SiO2)) — mineral

Chalcedony (Agate Nodules)

Silicon Dioxide (SiO2)

Yellow Quartz (Chalcedony/Agate) (Silicon Dioxide (SiO2)) — Mineral

Yellow Quartz (Chalcedony/Agate)

Silicon Dioxide (SiO2)

Dendritic Agate or Tree Agate (Silicon Dioxide (SiO2) with impurities of manganese or iron oxide) — mineral

Dendritic Agate or Tree Agate

Silicon Dioxide (SiO2) with impurities of manganese or iron oxide

Petrified Wood (Silicified Wood (SiO2)) — mineral

Petrified Wood

Silicified Wood (SiO2)