Rock Identifier

Category

Mineral (Chalcedony)

Browse mineral (chalcedony) specimens identified by the Rock Identifier community.

Learn about Mineral (Chalcedony) in the encyclopedia

Chalcedony

Blue Chalcedony

Blue Chalcedony

Chrome Chalcedony

Chrome Chalcedony

Gem Silica

Plume Agate

Landscape Agate

Landscape Agate

Chrysoprase

Sard

Prase

Glauconite

Sagenite Agate

Grape Agate

Banded Calcite (CaCO3) — sedimentary

Banded Calcite

CaCO3

Green Jasper Pebble (Microcrystalline Quartz (Chalcedony), SiO2) — sedimentary

Green Jasper Pebble

Microcrystalline Quartz (Chalcedony), SiO2

Polished carnelian agate (Microcrystalline quartz (SiO₂), chalcedony with iron-oxide coloration) — mineral

Polished carnelian agate

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

Flower Agate (Cherry Blossom Agate) (Chalcedony (SiO2) with Opaque Inclusions) — mineral

Flower Agate (Cherry Blossom Agate)

Chalcedony (SiO2) with Opaque Inclusions

Chalcedony (Desert Rose or Botryoidal Chalcedony) (Silicon Dioxide (SiO2)) — mineral

Chalcedony (Desert Rose or Botryoidal Chalcedony)

Silicon Dioxide (SiO2)

Botryoidal Chalcedony (Geode fragment) (Silicon Dioxide (SiO2)) — mineral

Botryoidal Chalcedony (Geode fragment)

Silicon Dioxide (SiO2)

Botryoidal Chalcedony (Silicon Dioxide (SiO2)) — mineral

Botryoidal Chalcedony

Silicon Dioxide (SiO2)

Yellow Chalcedony (Silicon Dioxide (SiO2) - Chalcedony) — mineral

Yellow Chalcedony

Silicon Dioxide (SiO2) - Chalcedony

Carnelian / Chalcedony (Cryptocrystalline Quartz (SiO2)) — mineral

Carnelian / Chalcedony

Cryptocrystalline Quartz (SiO2)

Yellow Chalcedony (Silicon Dioxide (SiO2)) — mineral

Yellow Chalcedony

Silicon Dioxide (SiO2)

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

Carnelian (Chalcedony)

Silicon Dioxide (SiO2)

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

Agate (Chalcedony)

Silicon Dioxide (SiO2)

Chrysocolla Chalcedony (Hydrated Copper Phyllosilicate (Cu,Al)2H2Si2O5(OH)4 + SiO2) — mineral

Chrysocolla Chalcedony

Hydrated Copper Phyllosilicate (Cu,Al)2H2Si2O5(OH)4 + SiO2

Botryoidal Chalcedony (Silicon Dioxide (SiO2)) — Mineral

Botryoidal Chalcedony

Silicon Dioxide (SiO2)

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

Agate (Chalcedony)

Agate (Silicon Dioxide - SiO2)

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

Carnelian (Chalcedony)

Silicon Dioxide (SiO2)

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

Carnelian (Chalcedony)

Silicon Dioxide (SiO2)

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

Carnelian (Chalcedony)

Silicon Dioxide (SiO2)

Yellow Chalcedony (SiO2 (Silicon Dioxide)) — mineral

Yellow Chalcedony

SiO2 (Silicon Dioxide)

Chalcedony Pebble (Silicon Dioxide (SiO2)) — mineral

Chalcedony Pebble

Silicon Dioxide (SiO2)

Chalcedony Pebble (Silicon Dioxide (SiO2)) — mineral

Chalcedony Pebble

Silicon Dioxide (SiO2)

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

Carnelian / Chalcedony

Silicon Dioxide (SiO2)

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

Carnelian (Chalcedony)

Silicon Dioxide (SiO2)

Tumbled Chalcedony (Quartz (Silicon Dioxide - SiO2)) — mineral

Tumbled Chalcedony

Quartz (Silicon Dioxide - SiO2)

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

Chalcedony (Agate)

Silicon Dioxide (SiO2)

Botryoidal Chalcedony (Cryptocrystalline Silicon Dioxide (SiO2)) — mineral

Botryoidal Chalcedony

Cryptocrystalline Silicon Dioxide (SiO2)

Green Chalcedony (Silicon Dioxide (SiO2) with trace minerals) — mineral

Green Chalcedony

Silicon Dioxide (SiO2) with trace minerals

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

Agate (Chalcedony)

Silicon Dioxide (SiO2)

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

Chalcedony (Agate)

Silicon Dioxide (SiO2)

Quartz with Chalcedony (Silicon dioxide (SiO2)) — mineral

Quartz with Chalcedony

Silicon dioxide (SiO2)

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

Agate (or Chalcedony)

Silicon Dioxide (SiO2)

Grey Chalcedony (Silicon Dioxide (SiO2)) — mineral

Grey Chalcedony

Silicon Dioxide (SiO2)

Botryoidal Chalcedony (Silicon Dioxide (SiO2)) — mineral

Botryoidal Chalcedony

Silicon Dioxide (SiO2)

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

Chalcedony (Agate)

Silicon Dioxide (SiO2)

Carnelian (Chalcedony) (Silicon Dioxide (SiO2) with trace Iron Oxide) — mineral

Carnelian (Chalcedony)

Silicon Dioxide (SiO2) with trace Iron Oxide

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

Quartz Geode Fragment

Silicon Dioxide (SiO2)

Polished bloodstone (heliotrope) (Chalcedony, microcrystalline quartz (SiO₂) with iron-oxide inclusions) — gemstone

Polished bloodstone (heliotrope)

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

Green chalcedony (likely dyed or treated) (Chalcedony, microcrystalline quartz (SiO₂)) — gemstone

Green chalcedony (likely dyed or treated)

Chalcedony, microcrystalline quartz (SiO₂)

Mixed polished/tumbled stones; likely blue calcite, red carnelian, and gray/blue quartz or agate (Probable calcite (CaCO₃), chalcedony/quartz (SiO₂), and iron-colored chalcedony) — mineral

Mixed polished/tumbled stones; likely blue calcite, red carnelian, and gray/blue quartz or agate

Probable calcite (CaCO₃), chalcedony/quartz (SiO₂), and iron-colored chalcedony

Tumbled honey-brown chalcedony or agate (Microcrystalline quartz (SiO₂), likely chalcedony; exact identification requires testing) — mineral

Tumbled honey-brown chalcedony or agate

Microcrystalline quartz (SiO₂), likely chalcedony; exact identification requires testing

Bloodstone (Chalcedony (Variety Heliotrope), SiO2) — mineral

Bloodstone

Chalcedony (Variety Heliotrope), SiO2

Lake Superior Agate (Silicon Dioxide (Chalcedony variety)) — gemstone

Lake Superior Agate

Silicon Dioxide (Chalcedony variety)