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

Agate (Silicon dioxide (Chalcedony), SiO2) — sedimentary

Agate

Silicon dioxide (Chalcedony), SiO2

Agate (Silicon dioxide (Chalcedony), SiO2) — gemstone

Agate

Silicon dioxide (Chalcedony), SiO2

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

Red Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

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

Jasper

Jasper (Silicon Dioxide, SiO2)

Yellow Jasper (Silicon Dioxide (SiO2) with iron inclusions) — sedimentary

Yellow Jasper

Silicon Dioxide (SiO2) with iron inclusions

Jasper (Green) (Silicon Dioxide (SiO2) with impurities) — sedimentary

Jasper (Green)

Silicon Dioxide (SiO2) with impurities

Yellow Jasper (Chert) (Silicon Dioxide (SiO2) with iron oxide inclusions) — sedimentary

Yellow Jasper (Chert)

Silicon Dioxide (SiO2) with iron oxide inclusions

Red Jasper with Quartz and Hematite (Silicon Dioxide (SiO2) with Ferric Iron inclusions) — sedimentary

Red Jasper with Quartz and Hematite

Silicon Dioxide (SiO2) with Ferric Iron inclusions

Onyx Marble (Banded Calcite) (Calcite (Calcium Carbonate, CaCO3)) — sedimentary

Onyx Marble (Banded Calcite)

Calcite (Calcium Carbonate, CaCO3)

Jasper (Milky/Cream Variety) (Silicon Dioxide (SiO2) - variety of Chalcedony) — sedimentary (chemical/biological)

Jasper (Milky/Cream Variety)

Silicon Dioxide (SiO2) - variety of Chalcedony

sedimentary (chemical/biological)

Zebra Jasper (Jasper (variety of Quartz/Chalcedony), SiO2) — sedimentary

Zebra Jasper

Jasper (variety of Quartz/Chalcedony), SiO2

Chalcedony (Yellow/Amber variety) (Silicon Dioxide (SiO2)) — mineral

Chalcedony (Yellow/Amber variety)

Silicon Dioxide (SiO2)

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

Red Jasper (Chalcedony)

Silicon Dioxide (SiO2) with iron oxide inclusions

Pink Jasper (Silicon Dioxide (SiO2) with iron oxide inclusions) — sedimentary

Pink Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

Jasper with Chert (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — sedimentary

Jasper with Chert

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Green Jasper (Silicon Dioxide (SiO2) with iron silicate inclusions) — sedimentary

Green Jasper

Silicon Dioxide (SiO2) with iron silicate inclusions

Banded Agate (Silicon Dioxide (SiO2) - Variety of Chalcedony) — sedimentary

Banded Agate

Silicon Dioxide (SiO2) - Variety of Chalcedony

Banded Calcite (Honey Calcite / Onyx Marble) (Calcite (Calcium Carbonate, CaCO3)) — mineral

Banded Calcite (Honey Calcite / Onyx Marble)

Calcite (Calcium Carbonate, CaCO3)

Yellow Jasper (Silicon Dioxide (SiO2) with Iron Oxide inclusions) — sedimentary

Yellow Jasper

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Yellow Chalcedony (Agate or Citrine Quartz) (Silicon Dioxide (SiO2)) — mineral

Yellow Chalcedony (Agate or Citrine Quartz)

Silicon Dioxide (SiO2)

Tumbled jasper (likely ocean or picture jasper) (Microcrystalline quartz/chalcedony, SiO₂, with iron-oxide and clay inclusions) — mineral

Tumbled jasper (likely ocean or picture jasper)

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

Red jasper (Jasper, microcrystalline quartz (SiO₂) colored mainly by iron oxides) — mineral

Red jasper

Jasper, microcrystalline quartz (SiO₂) colored mainly by iron oxides

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

Dyed Agate

Silicon Dioxide (SiO2) - Chalcedony variety

Lake Superior Agate (Silicon dioxide (chalcedony variety quartz)) — sedimentary

Lake Superior Agate

Silicon dioxide (chalcedony variety quartz)

Jasper (Iron-stained Chert) (Silicon Dioxide (SiO2) with impurities of Hematite or Goethite) — sedimentary

Jasper (Iron-stained Chert)

Silicon Dioxide (SiO2) with impurities of Hematite or Goethite

Polished agate slice (Agate, a banded variety of chalcedony (microcrystalline SiO₂)) — mineral

Polished agate slice

Agate, a banded variety of chalcedony (microcrystalline SiO₂)

Yellow Jasper (Silicon Dioxide (SiO2) with goethite or limonite inclusions) — sedimentary

Yellow Jasper

Silicon Dioxide (SiO2) with goethite or limonite inclusions

Orange chalcedony or weathered quartz pebble (Microcrystalline quartz, SiO₂; possibly iron-oxide-stained chalcedony) — mineral

Orange chalcedony or weathered quartz pebble

Microcrystalline quartz, SiO₂; possibly iron-oxide-stained chalcedony

Jasper (Silicon Dioxide (SiO2)) — sedimentary

Jasper

Silicon Dioxide (SiO2)

Jasper (likely Polychrome or Mookaite variants) (Silicon Dioxide (SiO2) with iron oxide and hydroxide inclusions) — sedimentary (chemically precipitated)

Jasper (likely Polychrome or Mookaite variants)

Silicon Dioxide (SiO2) with iron oxide and hydroxide inclusions

sedimentary (chemically precipitated)

Agate (Water-Worn Pebble) (Silicon Dioxide (SiO2) - Chalcedony) — mineral

Agate (Water-Worn Pebble)

Silicon Dioxide (SiO2) - Chalcedony

Yellow Agate (Banded Chalcedony) (Silicon Dioxide (SiO2)) — sedimentary

Yellow Agate (Banded Chalcedony)

Silicon Dioxide (SiO2)

Agate (Silicon dioxide (SiO2) - variety of chalcedony) — sedimentary

Agate

Silicon dioxide (SiO2) - variety of chalcedony

Polished/tumbled brown jasper or iron-rich chert (Microcrystalline quartz (SiO₂), commonly colored by hematite/goethite) — mineral

Polished/tumbled brown jasper or iron-rich chert

Microcrystalline quartz (SiO₂), commonly colored by hematite/goethite

Polished red jasper (Jasper, microcrystalline quartz (SiO₂), colored by iron oxides and commonly mixed with chalcedony or other minerals) — mineral

Polished red jasper

Jasper, microcrystalline quartz (SiO₂), colored by iron oxides and commonly mixed with chalcedony or other minerals

Polished brecciated jasper (likely Apache tear–type iron-rich jasper) (Jasper, microcrystalline quartz (SiO₂), colored by hematite/goethite and other iron oxides) — mineral

Polished brecciated jasper (likely Apache tear–type iron-rich jasper)

Jasper, microcrystalline quartz (SiO₂), colored by hematite/goethite and other iron oxides

Tumbled brown jasper (probable) (Microcrystalline quartz/chalcedony, SiO₂, with iron-oxide inclusions) — mineral

Tumbled brown jasper (probable)

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

Tumbled reddish-brown stone, likely jasper (Jasper (microcrystalline quartz, SiO₂), possibly red jasper or jasper-rich chert) — mineral

Tumbled reddish-brown stone, likely jasper

Jasper (microcrystalline quartz, SiO₂), possibly red jasper or jasper-rich chert

Agate Geode Node (Cryptocrystalline Quartz (SiO2)) — mineral

Agate Geode Node

Cryptocrystalline Quartz (SiO2)

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

Jasper with Quartz Vein

Silicon Dioxide (SiO2)

Yellow Jasper (Chalcedony (SiO2)) — sedimentary

Yellow Jasper

Chalcedony (SiO2)

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

Quartz (Agate/Chalcedony)

Silicon Dioxide (SiO2)