Rock Identifier

Category

Mineral (Chalcedony)

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

Learn about Mineral (Chalcedony) in the encyclopedia

Chalcedony

Chrome Chalcedony

Chrome Chalcedony

Blue Chalcedony

Blue Chalcedony

Gem Silica

Plume Agate

Landscape Agate

Landscape Agate

Chrysoprase

Sard

Prase

Glauconite

Sagenite Agate

Grape Agate

Tumbled yellow chalcedony (likely citrine-like quartz or yellow jasper) (Microcrystalline quartz, SiO₂; exact identification requires testing) — mineral

Tumbled yellow chalcedony (likely citrine-like quartz or yellow jasper)

Microcrystalline quartz, SiO₂; exact identification requires testing

Tumbled amber-colored chalcedony or jasper (Microcrystalline quartz (SiO₂), likely iron-stained chalcedony/jasper) — mineral

Tumbled amber-colored chalcedony or jasper

Microcrystalline quartz (SiO₂), likely iron-stained chalcedony/jasper

Geode with Quartz and possibly Jasper/Hematite (Quartz (SiO2) and Chalcedony (cryptocrystalline SiO2), possibly stained by iron oxides) — Mineral/Sedimentary Geode

Geode with Quartz and possibly Jasper/Hematite

Quartz (SiO2) and Chalcedony (cryptocrystalline SiO2), possibly stained by iron oxides

Mineral/Sedimentary Geode

Grey Chalcedony (Tumbled Moon) (Microcrystalline Quartz (SiO2)) — mineral

Grey Chalcedony (Tumbled Moon)

Microcrystalline Quartz (SiO2)

Tumbled carnelian agate (Microcrystalline quartz (chalcedony), SiO₂, colored mainly by iron oxides) — mineral

Tumbled carnelian agate

Microcrystalline quartz (chalcedony), SiO₂, colored mainly by iron oxides

Blue Chalcedony (Silicon Dioxide (SiO2)) — mineral

Blue Chalcedony

Silicon Dioxide (SiO2)

Agate (Chalcedony (SiO2)) — Mineral

Agate

Chalcedony (SiO2)

Tumbled agate or chalcedony (Microcrystalline quartz (SiO₂), likely brown/orange chalcedony or agate) — mineral

Tumbled agate or chalcedony

Microcrystalline quartz (SiO₂), likely brown/orange chalcedony or agate

Blue Lace Agate (Polished Pendant) (Chalcedony (SiO2)) — mineral

Blue Lace Agate (Polished Pendant)

Chalcedony (SiO2)

Carnelian (Chalcedony (SiO2)) — mineral

Carnelian

Chalcedony (SiO2)

Carnelian or Red Agate (Chalcedony (SiO2)) — mineral

Carnelian or Red Agate

Chalcedony (SiO2)

Carnelian (Chalcedony (SiO2)) — mineral

Carnelian

Chalcedony (SiO2)

Dyed Agate (Chalcedony (SiO2)) — mineral

Dyed Agate

Chalcedony (SiO2)

Onyx (Chalcedony (SiO2)) — mineral

Onyx

Chalcedony (SiO2)

Carnelian Agate (Chalcedony (SiO2)) — mineral

Carnelian Agate

Chalcedony (SiO2)

Blue Chalcedony (Chalcedony (SiO2)) — mineral

Blue Chalcedony

Chalcedony (SiO2)

Agate (Chalcedony SiO2) — mineral

Agate

Chalcedony SiO2

Jasper (Chalcedony (SiO2)) — mineral

Jasper

Chalcedony (SiO2)

Carnelian (Chalcedony (SiO2)) — mineral

Carnelian

Chalcedony (SiO2)

Blue Lace Agate (Chalcedony (SiO2)) — mineral

Blue Lace Agate

Chalcedony (SiO2)

Crazy Lace Agate (Chalcedony (SiO2)) — mineral

Crazy Lace Agate

Chalcedony (SiO2)

Gray Chalcedony Gemstone (Chalcedony (SiO2)) — mineral

Gray Chalcedony Gemstone

Chalcedony (SiO2)

Grey Chalcedony (Tumbled) (Chalcedony (SiO2)) — mineral

Grey Chalcedony (Tumbled)

Chalcedony (SiO2)

Chalcedony in Host Rock (Chalcedony (SiO2)) — mineral

Chalcedony in Host Rock

Chalcedony (SiO2)

Botryoidal Chalcedony (Chalcedony (SiO2)) — Mineral

Botryoidal Chalcedony

Chalcedony (SiO2)

Dyed Agate (Chalcedony (SiO2)) — Mineral

Dyed Agate

Chalcedony (SiO2)

Bloodstone (Chalcedony (Quartz)) — Mineral

Bloodstone

Chalcedony (Quartz)

Botryoidal Chalcedony (Agate/Carnelian) (Chalcedony (SiO2)) — mineral

Botryoidal Chalcedony (Agate/Carnelian)

Chalcedony (SiO2)

Banded Agate (Chalcedony (SiO2)) — mineral

Banded Agate

Chalcedony (SiO2)

Agate (Chalcedony (SiO2)) — mineral

Agate

Chalcedony (SiO2)

Crazy Lace Agate (Chalcedony (SiO2)) — Mineral

Crazy Lace Agate

Chalcedony (SiO2)

Blue Agate (Chalcedony (SiO2)) — mineral

Blue Agate

Chalcedony (SiO2)

Dyed Agate (Chalcedony (SiO2)) — mineral

Dyed Agate

Chalcedony (SiO2)

Banded Onyx (Chalcedony (SiO2)) — mineral

Banded Onyx

Chalcedony (SiO2)

Blue Chalcedony Cube (Silicon Dioxide (SiO2)) — mineral

Blue Chalcedony Cube

Silicon Dioxide (SiO2)

Honey-colored chalcedony (rough agate/chert) (Microcrystalline quartz, SiO₂; likely chalcedony with iron-oxide staining) — mineral

Honey-colored chalcedony (rough agate/chert)

Microcrystalline quartz, SiO₂; likely chalcedony with iron-oxide staining

Polished yellow chalcedony (likely lemon agate or yellow jasper) (Microcrystalline quartz, SiO₂) — mineral

Polished yellow chalcedony (likely lemon agate or yellow jasper)

Microcrystalline quartz, SiO₂

Tumbled chalcedony (likely milky agate) (Microcrystalline quartz, SiO₂; chalcedony/agate variety) — mineral

Tumbled chalcedony (likely milky agate)

Microcrystalline quartz, SiO₂; chalcedony/agate variety

Moss Agate (Silicon dioxide (SiO2) with inclusions) — Mineral

Moss Agate

Silicon dioxide (SiO2) with 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)

Polished agate/jasper nodule (Microcrystalline quartz (chalcedony), SiO₂, with iron-oxide impurities) — mineral

Polished agate/jasper nodule

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

Agate (specifically, multi-colored or pastel-dyed agate) (Silicon dioxide (SiO2) - specifically, a cryptocrystalline variety of quartz known as Chalcedony, with banding classified as Agate. (If it were Fluorite, the chemical formula would be Calcium Fluoride - CaF2).) — Mineral

Agate (specifically, multi-colored or pastel-dyed agate)

Silicon dioxide (SiO2) - specifically, a cryptocrystalline variety of quartz known as Chalcedony, with banding classified as Agate. (If it were Fluorite, the chemical formula would be Calcium Fluoride - CaF2).