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

Agate (Chalcedony (SiO2)) — mineral

Agate

Chalcedony (SiO2)

Carnelian Agate (Tumbled) (Chalcedony (SiO2)) — mineral

Carnelian Agate (Tumbled)

Chalcedony (SiO2)

Jasper or Agate (Chalcedony (SiO2)) — mineral

Jasper or Agate

Chalcedony (SiO2)

Jasper (Chalcedony (SiO2)) — mineral

Jasper

Chalcedony (SiO2)

Jasper (Chalcedony (SiO2)) — mineral

Jasper

Chalcedony (SiO2)

Black Agate (Chalcedony (SiO2)) — mineral

Black Agate

Chalcedony (SiO2)

Jasper (Chalcedony (SiO2)) — mineral

Jasper

Chalcedony (SiO2)

Agate (Chalcedony (SiO2)) — mineral

Agate

Chalcedony (SiO2)

Crazy Lace Agate (Chalcedony (SiO2)) — mineral

Crazy Lace Agate

Chalcedony (SiO2)

Agate (Chalcedony (SiO2)) — mineral

Agate

Chalcedony (SiO2)

Jasper (Chalcedony (SiO2)) — mineral

Jasper

Chalcedony (SiO2)

White Agate (Chalcedony) (Chalcedony (SiO2)) — mineral

White Agate (Chalcedony)

Chalcedony (SiO2)

Blue Lace Agate (Chalcedony (SiO2)) — mineral

Blue Lace Agate

Chalcedony (SiO2)

Agate (Chalcedony (SiO2)) — mineral

Agate

Chalcedony (SiO2)

Agate (Chalcedony (SiO2)) — mineral

Agate

Chalcedony (SiO2)

Crazy Lace Agate (Chalcedony (SiO2)) — Mineral

Crazy Lace Agate

Chalcedony (SiO2)

Agate slice (Chalcedony (SiO2)) — mineral

Agate slice

Chalcedony (SiO2)

Carnelian (Chalcedony (SiO₂)) — mineral

Carnelian

Chalcedony (SiO₂)

Carnelian (Chalcedony (SiO2)) — mineral

Carnelian

Chalcedony (SiO2)

Crazy Lace Agate (Chalcedony (SiO2)) — mineral

Crazy Lace Agate

Chalcedony (SiO2)

Bloodstone (Heliotrope (Chalcedony)) — mineral

Bloodstone

Heliotrope (Chalcedony)

Yellow chalcedony (likely lemon/citrine-colored agate) (Microcrystalline quartz, SiO₂ (chalcedony)) — mineral

Yellow chalcedony (likely lemon/citrine-colored agate)

Microcrystalline quartz, SiO₂ (chalcedony)

Blue chalcedony (likely dyed or coated) (Chalcedony, microcrystalline quartz (SiO₂)) — mineral

Blue chalcedony (likely dyed or coated)

Chalcedony, microcrystalline quartz (SiO₂)

Red jasper (probable) (Jasper, an opaque microcrystalline variety of quartz; SiO₂, commonly colored by iron oxides) — mineral

Red jasper (probable)

Jasper, an opaque microcrystalline variety of quartz; SiO₂, commonly colored by iron oxides

Polished orange jasper (Jasper, an opaque microcrystalline variety of quartz (SiO₂), colored by iron oxides) — mineral

Polished orange jasper

Jasper, an opaque microcrystalline variety of quartz (SiO₂), colored by iron oxides

Tumbled brecciated jasper (likely) (Jasper, an opaque microcrystalline variety of quartz (SiO₂), with iron-oxide-rich zones) — mineral

Tumbled brecciated jasper (likely)

Jasper, an opaque microcrystalline variety of quartz (SiO₂), with iron-oxide-rich zones

Polished agate geode slice (Microcrystalline quartz (chalcedony), SiO₂) — mineral

Polished agate geode slice

Microcrystalline quartz (chalcedony), SiO₂

Polished jasper pebble (Jasper (microcrystalline quartz, SiO₂)) — sedimentary

Polished jasper pebble

Jasper (microcrystalline quartz, SiO₂)

Black Onyx (Cryptocrystalline Quartz (SiO2 with organic/iron impurities)) — mineral

Black Onyx

Cryptocrystalline Quartz (SiO2 with organic/iron impurities)

Polished agate geode slice (Quartz (SiO₂), chiefly chalcedony with drusy crystalline quartz; likely an agate geode) — mineral

Polished agate geode slice

Quartz (SiO₂), chiefly chalcedony with drusy crystalline quartz; likely an agate geode

Tumbled chalcedony or quartz pebble (Microcrystalline quartz, SiO₂ (likely chalcedony; exact identification requires testing)) — mineral

Tumbled chalcedony or quartz pebble

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

Tumbled orange chalcedony or carnelian (Microcrystalline quartz (SiO₂), commonly iron-stained chalcedony; likely carnelian) — mineral

Tumbled orange chalcedony or carnelian

Microcrystalline quartz (SiO₂), commonly iron-stained chalcedony; likely carnelian

Tumbled chalcedony (likely carnelian or orange agate) (Microcrystalline quartz, SiO₂; chalcedony variety, possibly Fe-bearing carnelian) — mineral

Tumbled chalcedony (likely carnelian or orange agate)

Microcrystalline quartz, SiO₂; chalcedony variety, possibly Fe-bearing carnelian

Tumbled orange chalcedony or carnelian (Microcrystalline quartz (SiO₂), likely iron-stained chalcedony) — mineral

Tumbled orange chalcedony or carnelian

Microcrystalline quartz (SiO₂), likely iron-stained chalcedony

Tumbled chalcedony/agate (probable) (Microcrystalline quartz, SiO₂; likely banded or plume agate with iron-oxide staining) — mineral

Tumbled chalcedony/agate (probable)

Microcrystalline quartz, SiO₂; likely banded or plume agate with iron-oxide staining

Tumbled chalcedony (possibly agate) (Microcrystalline quartz, SiO₂ (chalcedony); banding is not clearly visible to confirm agate) — mineral

Tumbled chalcedony (possibly agate)

Microcrystalline quartz, SiO₂ (chalcedony); banding is not clearly visible to confirm agate

Banded agate / chalcedony (likely iron-stained agate) (Microcrystalline quartz, SiO₂; varieties include chalcedony and jasper) — mineral

Banded agate / chalcedony (likely iron-stained agate)

Microcrystalline quartz, SiO₂; varieties include chalcedony and jasper

Polished agate pebble (likely dyed or naturally banded chalcedony) (Chalcedony, microcrystalline SiO₂; agate is banded chalcedony) — mineral

Polished agate pebble (likely dyed or naturally banded chalcedony)

Chalcedony, microcrystalline SiO₂; agate is banded chalcedony

Yellow Agate (Silicon Dioxide (SiO2)) — mineral

Yellow Agate

Silicon Dioxide (SiO2)

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

Tumbled agate or chalcedony

Microcrystalline quartz (SiO₂), likely yellow-brown chalcedony/agate

Tumbled brown chalcedony (likely smoky quartz or agate) (Chalcedony, microcrystalline SiO₂; exact variety cannot be confirmed visually) — mineral

Tumbled brown chalcedony (likely smoky quartz or agate)

Chalcedony, microcrystalline SiO₂; exact variety cannot be confirmed visually

Tumbled orange-and-white chalcedony (likely carnelian or orange agate) (Microcrystalline quartz, SiO₂; chalcedony variety, possibly iron-colored carnelian) — mineral

Tumbled orange-and-white chalcedony (likely carnelian or orange agate)

Microcrystalline quartz, SiO₂; chalcedony variety, possibly iron-colored carnelian