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

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

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

Milky Quartz

Quartz (Silicon Dioxide - SiO2)

Peridotite (Dunite) (Olivine-rich Peridotite ((Mg,Fe)2SiO4)) — igneous

Peridotite (Dunite)

Olivine-rich Peridotite ((Mg,Fe)2SiO4)

Gypsum (Satin Spar / Alabaster variety) (Calcium Sulfate Dihydrate (CaSO4·2H2O)) — mineral

Gypsum (Satin Spar / Alabaster variety)

Calcium Sulfate Dihydrate (CaSO4·2H2O)

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

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

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

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

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

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Green Aventurine (Quartz with Fuchsite inclusions (SiO2)) — mineral

Green Aventurine

Quartz with Fuchsite inclusions (SiO2)

Carved Mottled Greenish-Yellow Crystal/Glass Object (Unknown; possibly a form of quartz (chalcedony/jadeite/nephrite) or glass/resin.) — Man-made Object/Uncertain Mineral

Carved Mottled Greenish-Yellow Crystal/Glass Object

Unknown; possibly a form of quartz (chalcedony/jadeite/nephrite) or glass/resin.

Man-made Object/Uncertain Mineral

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Magnetite (Magnetite (Fe3O4)) — mineral

Magnetite

Magnetite (Fe3O4)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz (Silicon dioxide (SiO2)) — mineral

Milky Quartz

Silicon dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

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

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Cloudy Quartz (or Milky Quartz) (Silicon Dioxide (SiO2)) — mineral

Cloudy Quartz (or Milky Quartz)

Silicon Dioxide (SiO2)

Orbicular jasper (ocean jasper) (Microcrystalline quartz (SiO₂), chiefly chalcedony with feldspar, zeolites, and iron-oxide inclusions) — mineral

Orbicular jasper (ocean jasper)

Microcrystalline quartz (SiO₂), chiefly chalcedony with feldspar, zeolites, and iron-oxide inclusions

Petrified Wood (Silicified Wood (primarily SiO2)) — sedimentary

Petrified Wood

Silicified Wood (primarily SiO2)

Botryoidal chalcedony (likely white quartz/chalcedony) (Microcrystalline quartz, SiO₂; possibly partly altered carbonate or opaline silica) — mineral

Botryoidal chalcedony (likely white quartz/chalcedony)

Microcrystalline quartz, SiO₂; possibly partly altered carbonate or opaline silica

White Chalcedony (Silicon Dioxide (SiO2)) — mineral

White Chalcedony

Silicon Dioxide (SiO2)

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

Chalcedony (Yellow Agate / Carnelian Chalcedony)

Silicon Dioxide (SiO2)

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

Chalcedony (Agate)

Quartz (Silicon Dioxide, SiO2)

Chalcedony (Agate/Carnelian variant) (Cryptocrystalline Silica (SiO2)) — mineral

Chalcedony (Agate/Carnelian variant)

Cryptocrystalline Silica (SiO2)

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

Yellow Chalcedony (Agate)

Silicon Dioxide (SiO2)

Chalcedony (Common Opal variant) (Silicon dioxide (SiO2) with varying levels of hydration) — mineral

Chalcedony (Common Opal variant)

Silicon dioxide (SiO2) with varying levels of hydration

Polished ocean jasper (orbicular jasper), probable (Microcrystalline quartz/chalcedony (SiO₂) with iron-oxide and other mineral inclusions) — mineral

Polished ocean jasper (orbicular jasper), probable

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

Petrified Wood (Silicified Wood (SiO2)) — fossil

Petrified Wood

Silicified Wood (SiO2)

Quartz Geode (Silicon Dioxide (SiO2)) — mineral

Quartz Geode

Silicon Dioxide (SiO2)

Jasper Pebble (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper Pebble

Microcrystalline Quartz (SiO2)

Fluorite (Calcium Fluoride (CaF2)) — mineral

Fluorite

Calcium Fluoride (CaF2)

Emerald in Matrix (Beryl (Be3Al2Si6O18 with Chromium/Vanadium traces)) — gemstone

Emerald in Matrix

Beryl (Be3Al2Si6O18 with Chromium/Vanadium traces)

Gemstone Tree Brooch (Agate and Quartz) (Silicon Dioxide (SiO2)) — mineral

Gemstone Tree Brooch (Agate and Quartz)

Silicon Dioxide (SiO2)

Banded Agate (Silicon Dioxide (SiO2)) — mineral

Banded Agate

Silicon Dioxide (SiO2)

Agate (Silicon dioxide (SiO2)) — mineral

Agate

Silicon dioxide (SiO2)

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

Moss Agate

Silicon Dioxide (SiO2) with inclusions

Petrified Wood (Silicified wood (Quartz replacement)) — fossil

Petrified Wood

Silicified wood (Quartz replacement)