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

Blue Lace Agate

Blue Lace Agate

Chrysoprase

Sard

Carnelian

Blue Jasper

Jasper

Plume Agate

Sagenite Agate

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

Argetine Blue Agate (Chalcendony variant) (Silicon Dioxide (SiO₂)) — mineral

Argetine Blue Agate (Chalcendony variant)

Silicon Dioxide (SiO₂)

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

Chalcedony on Matrix

Silicon Dioxide (SiO2)

Chalcedony (Silicon Dioxide (SiO2)) — mineral

Chalcedony

Silicon Dioxide (SiO2)

Red Jasper (Silicon Dioxide (SiO2)) — sedimentary

Red Jasper

Silicon Dioxide (SiO2)

Blue Chalcedony (Silicon Dioxide (SiO2)) — mineral

Blue Chalcedony

Silicon Dioxide (SiO2)

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

Jasper

Jasper (Silicon Dioxide, SiO2)

Blue Agate (Chalcedony (SiO2)) — mineral

Blue Agate

Chalcedony (SiO2)

Blue Chalcedony (Silicon Dioxide (SiO2)) — mineral

Blue Chalcedony

Silicon Dioxide (SiO2)

Chalcedony Pebble (Cryptocrystalline Quartz (SiO2)) — mineral

Chalcedony Pebble

Cryptocrystalline Quartz (SiO2)

Polished blue-gray agate/geode slice (tentative) (Microcrystalline quartz (chalcedony), SiO₂, possibly with druzy quartz) — mineral

Polished blue-gray agate/geode slice (tentative)

Microcrystalline quartz (chalcedony), SiO₂, possibly with druzy quartz

Polished yellow chalcedony (likely quartz pebble) (Chalcedony, microcrystalline quartz (SiO₂), possibly iron-stained jasper) — mineral

Polished yellow chalcedony (likely quartz pebble)

Chalcedony, microcrystalline quartz (SiO₂), possibly iron-stained jasper

Agate in Matrix (Silicon Dioxide (SiO2) within host rock) — mineral

Agate in Matrix

Silicon Dioxide (SiO2) within host rock

Jasper (Silicon Dioxide (Quartz variety, SiO2)) — mineral

Jasper

Silicon Dioxide (Quartz variety, SiO2)

Blue Lace Agate (Microcrystalline Quartz (Chalcedony), SiO2) — mineral

Blue Lace Agate

Microcrystalline Quartz (Chalcedony), SiO2

Red Jasper (Silicon Dioxide (SiO2) with Iron Oxide inclusions) — mineral

Red Jasper

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Brown Agate (Silicon Dioxide (SiO2)) — mineral

Brown Agate

Silicon Dioxide (SiO2)

Gray Agate with Druzy Quartz Geode (Cryptocrystalline Quartz (SiO2)) — mineral

Gray Agate with Druzy Quartz Geode

Cryptocrystalline Quartz (SiO2)

Red Jasper (Red Jasper (SiO2 with Hematite inclusions)) — mineral

Red Jasper

Red Jasper (SiO2 with Hematite inclusions)

Dyed Agate (SiO2) — Mineral

Dyed Agate

SiO2

Agate (specifically Botswana or Lake Superior style chalcedony) (Silicon Dioxide (SiO2)) — mineral

Agate (specifically Botswana or Lake Superior style chalcedony)

Silicon Dioxide (SiO2)

Red Jasper (Silicon Dioxide (SiO2) with iron oxide inclusions) — mineral

Red Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

Chalcedony (Common Opal variant or Quartz) (Silicon Dioxide (SiO2)) — mineral

Chalcedony (Common Opal variant or Quartz)

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)

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

Jasper with Quartz Vein (Silicon Dioxide (SiO2)) — sedimentary

Jasper with Quartz Vein

Silicon Dioxide (SiO2)

Chalcedony Nodule in Matrix (Silicon Dioxide (SiO2)) — mineral

Chalcedony Nodule in Matrix

Silicon Dioxide (SiO2)

Blue Chalcedony (Agate) (Cryptocrystalline Quartz (SiO2)) — mineral

Blue Chalcedony (Agate)

Cryptocrystalline Quartz (SiO2)

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

Ocean Jasper

Orbicular Jasper (Silicon Dioxide, SiO2)

Jasper (specifically Red Jasper or Iron-stained Chert) (Silicon dioxide (SiO2) with iron oxide inclusions) — sedimentary

Jasper (specifically Red Jasper or Iron-stained Chert)

Silicon dioxide (SiO2) with iron oxide inclusions

Blue Chalcedony (Silicon Dioxide (SiO2)) — mineral

Blue Chalcedony

Silicon Dioxide (SiO2)

Banded Agate (Chalcedony (SiO2 with impurities)) — mineral

Banded Agate

Chalcedony (SiO2 with impurities)

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

Tumbled Agate

Silicon Dioxide (Chalcedony variety), SiO2

Carnelian (Chalcedony) (Silicon Dioxide (SiO2) - variety of Chalcedony) — mineral

Carnelian (Chalcedony)

Silicon Dioxide (SiO2) - variety of Chalcedony

Carnelian (Carnelian (SiO2)) — mineral

Carnelian

Carnelian (SiO2)

Jasper (brecciated or orbicular jasper) (Microcrystalline quartz/chalcedony (SiO₂), colored by iron oxides and other impurities) — mineral

Jasper (brecciated or orbicular jasper)

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

Jasper (Silicon Dioxide (SiO2)) — sedimentary

Jasper

Silicon Dioxide (SiO2)

Red Jasper (Quartz (Silicon Dioxide) with Hematite inclusions, SiO2) — mineral

Red Jasper

Quartz (Silicon Dioxide) with Hematite inclusions, SiO2

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

Chalcedony (Agate / Moss Agate)

Silicon Dioxide (SiO2)

Agate (Brecciated / Moss Agate with Jasproid Inclusions) (Silicon Dioxide (SiO2)) — mineral

Agate (Brecciated / Moss Agate with Jasproid Inclusions)

Silicon Dioxide (SiO2)

Crazy Lace Agate (Silicon Dioxide (SiO2) with iron and aluminum inclusions) — sedimentary mineral

Crazy Lace Agate

Silicon Dioxide (SiO2) with iron and aluminum inclusions

sedimentary mineral