Rock Identifier

Category

Mineral (Chalcedony Variety)

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

Learn about Mineral (Chalcedony Variety) 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

Chalcedony (Quartz Pebbles) (Silicon Dioxide (SiO2)) — mineral

Chalcedony (Quartz Pebbles)

Silicon Dioxide (SiO2)

Blue Agate (Dyed or Treated Chalcedony) (Silicon Dioxide (SiO2), microcrystalline quartz variety) — mineral

Blue Agate (Dyed or Treated Chalcedony)

Silicon Dioxide (SiO2), microcrystalline quartz variety

Tumbled jasper (likely mookaite or brown/orange jasper) (Microcrystalline quartz/chalcedony, SiO₂, with iron-oxide inclusions) — mineral

Tumbled jasper (likely mookaite or brown/orange jasper)

Microcrystalline quartz/chalcedony, SiO₂, with iron-oxide inclusions

Blue Lace Agate (Chalcedony (Silicon Dioxide, SiO2)) — mineral

Blue Lace Agate

Chalcedony (Silicon Dioxide, SiO2)

Polished pink chalcedony (possibly carnelian) (Microcrystalline quartz, SiO₂; chalcedony variety, with exact variety uncertain from the image) — mineral

Polished pink chalcedony (possibly carnelian)

Microcrystalline quartz, SiO₂; chalcedony variety, with exact variety uncertain from the image

Black Onyx (Silicon Dioxide (SiO2)) — mineral

Black Onyx

Silicon Dioxide (SiO2)

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

Banded Carnelian

Carnelian (Silicon Dioxide / SiO2)

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

Carnelian

Carnelian (Silicon Dioxide - SiO2)

Tumbled yellow-orange chalcedony (likely carnelian) (Microcrystalline quartz, SiO₂; iron-bearing variety commonly called carnelian) — mineral

Tumbled yellow-orange chalcedony (likely carnelian)

Microcrystalline quartz, SiO₂; iron-bearing variety commonly called carnelian

Polished carnelian agate (Chalcedony (microcrystalline quartz), SiO₂, iron-oxide colored) — gemstone

Polished carnelian agate

Chalcedony (microcrystalline quartz), SiO₂, iron-oxide colored

Chalcedony (Silicon Dioxide (SiO2)) — mineral

Chalcedony

Silicon Dioxide (SiO2)

Tumbled Agate (Silicon Dioxide (Chalcedony variety), SiO2) — mineral

Tumbled Agate

Silicon Dioxide (Chalcedony variety), SiO2

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

Polished jasper pebble

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

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

Carnelian

Carnelian (Silicon Dioxide, SiO2)

Polished brecciated jasper (Silica-rich microcrystalline quartz/chalcedony (SiO₂), with iron-oxide and other mineral inclusions) — mineral

Polished brecciated jasper

Silica-rich microcrystalline quartz/chalcedony (SiO₂), with iron-oxide and other mineral inclusions

Brown chalcedony/agatic jasper nodule (Microcrystalline quartz (SiO₂), likely iron-stained chalcedony with included or weathered host material) — mineral

Brown chalcedony/agatic jasper nodule

Microcrystalline quartz (SiO₂), likely iron-stained chalcedony with included or weathered host material

Chalcedony on Matrix (Silicon Dioxide (SiO2)) — mineral

Chalcedony on Matrix

Silicon Dioxide (SiO2)

Agate (Silicon Dioxide (SiO2)) — mineral

Agate

Silicon Dioxide (SiO2)

Jasper (Chalcedony (SiO2)) — mineral

Jasper

Chalcedony (SiO2)

Blue Chalcedony (Silicon Dioxide (SiO2)) — mineral

Blue Chalcedony

Silicon Dioxide (SiO2)

Agate Geode (Silicon Dioxide (SiO2) - Chalcedony variety) — sedimentary

Agate Geode

Silicon Dioxide (SiO2) - Chalcedony variety

Green Jasper (Jasper (Silicon Dioxide, SiO2)) — sedimentary

Green Jasper

Jasper (Silicon Dioxide, SiO2)

Jasper (Silicon dioxide (SiO2)) — sedimentary

Jasper

Silicon dioxide (SiO2)

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

Tumbled brown jasper

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

Jasper (Multi-color Chert) (Silicon Dioxide (SiO2) with impurities) — sedimentary

Jasper (Multi-color Chert)

Silicon Dioxide (SiO2) with impurities

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

Blue Chalcedony (Silicon Dioxide (SiO2)) — mineral

Blue Chalcedony

Silicon Dioxide (SiO2)

White Jade / White Chalcedony (Nephrite Jade (Ca2(Mg,Fe)5Si8O22(OH)2) or Chalcedony (SiO2)) — Mineral

White Jade / White Chalcedony

Nephrite Jade (Ca2(Mg,Fe)5Si8O22(OH)2) or Chalcedony (SiO2)

Tumbled jasper or iron-rich chert (Microcrystalline quartz (SiO₂), likely colored by iron oxides) — mineral

Tumbled jasper or iron-rich chert

Microcrystalline quartz (SiO₂), likely colored by iron oxides

Chalcedony (Silicon Dioxide (SiO2)) — mineral

Chalcedony

Silicon Dioxide (SiO2)

Banded agate (chalcedony) (Microcrystalline quartz (SiO₂), variety chalcedony) — mineral

Banded agate (chalcedony)

Microcrystalline quartz (SiO₂), variety chalcedony

Brown chalcedony (likely carnelian/iron-stained quartz) (Microcrystalline quartz, SiO₂; brown coloration from iron oxides/hydroxides) — mineral

Brown chalcedony (likely carnelian/iron-stained quartz)

Microcrystalline quartz, SiO₂; brown coloration from iron oxides/hydroxides

Tumbled carnelian (Carnelian, orange-red chalcedony (microcrystalline quartz, SiO₂)) — gemstone

Tumbled carnelian

Carnelian, orange-red chalcedony (microcrystalline quartz, SiO₂)

Blue-gray chalcedony (likely agate/jasper fragment) (Microcrystalline quartz, SiO₂ (chalcedony)) — mineral

Blue-gray chalcedony (likely agate/jasper fragment)

Microcrystalline quartz, SiO₂ (chalcedony)

Chalcedony (likely carnelian/agate beads or rounded grains) (Microcrystalline quartz, SiO₂; chalcedony varieties) — mineral

Chalcedony (likely carnelian/agate beads or rounded grains)

Microcrystalline quartz, SiO₂; chalcedony varieties

Tumbled Green Jasper (Silicon Dioxide (SiO2) with mineral inclusions) — sedimentary

Tumbled Green Jasper

Silicon Dioxide (SiO2) with mineral inclusions

Jasper (Jasper (Silicon Dioxide, SiO2)) — sedimentary

Jasper

Jasper (Silicon Dioxide, SiO2)

Yellow jasper (likely iron-stained chert) (Microcrystalline quartz (SiO₂), chiefly chalcedony/quartz with iron-oxide pigments) — sedimentary

Yellow jasper (likely iron-stained chert)

Microcrystalline quartz (SiO₂), chiefly chalcedony/quartz with iron-oxide pigments

Polished brown jasper pebble (Microcrystalline quartz (SiO₂), commonly iron-oxide-rich jasper) — mineral

Polished brown jasper pebble

Microcrystalline quartz (SiO₂), commonly iron-oxide-rich jasper

Tumbled orange chalcedony (likely carnelian) (Carnelian, a microcrystalline quartz variety; SiO₂, commonly colored by iron oxides) — gemstone

Tumbled orange chalcedony (likely carnelian)

Carnelian, a microcrystalline quartz variety; SiO₂, commonly colored by iron oxides

Tumbled jasper (Microcrystalline quartz (SiO₂), colored by iron oxides and other impurities) — mineral

Tumbled jasper

Microcrystalline quartz (SiO₂), colored by iron oxides and other impurities

Tumbled yellow jasper (Microcrystalline quartz (SiO₂), typically chalcedony with iron-oxide impurities) — mineral

Tumbled yellow jasper

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