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Mineral, Variety Of Chalcedony (Microcrystalline Quartz)

Browse mineral, variety of chalcedony (microcrystalline quartz) specimens identified by the Rock Identifier community.

Learn about Mineral, Variety Of Chalcedony (Microcrystalline Quartz) in the encyclopedia

Chalcedony

Blue Chalcedony

Blue Chalcedony

Smoky Quartz

Lithium Quartz

Dumortierite Quartz

Dumortierite Quartz

Morion Quartz

Rose Quartz

Milky Quartz

Snow Quartz

Garden Quartz

Blue Quartz

Phantom Quartz

Tumbled carnelian (likely) (Orange-red chalcedony, microcrystalline quartz (SiO₂)) — mineral

Tumbled carnelian (likely)

Orange-red chalcedony, microcrystalline quartz (SiO₂)

Jasper (Silicon dioxide (Quartz variety), SiO2) — sedimentary

Jasper

Silicon dioxide (Quartz variety), SiO2

Tumbled ocean jasper (orbicular jasper), likely brecciated variety (Jasper: microcrystalline quartz (SiO₂) with iron-oxide staining and other silicate inclusions) — metamorphic

Tumbled ocean jasper (orbicular jasper), likely brecciated variety

Jasper: microcrystalline quartz (SiO₂) with iron-oxide staining and other silicate inclusions

Tumbled orange chalcedony (probable carnelian) (Cryptocrystalline quartz, SiO₂; reddish-orange variety commonly called carnelian) — gemstone

Tumbled orange chalcedony (probable carnelian)

Cryptocrystalline quartz, SiO₂; reddish-orange variety commonly called carnelian

Tumbled purple chalcedony or amethyst (Microcrystalline quartz (SiO₂), possibly amethyst variety) — mineral

Tumbled purple chalcedony or amethyst

Microcrystalline quartz (SiO₂), possibly amethyst variety

Onyx (beads) (SiO2 (Cryptocrystalline Quartz)) — Mineral

Onyx (beads)

SiO2 (Cryptocrystalline Quartz)

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

Carnelian

Silicon Dioxide (Chalcedony variety), SiO2

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

Tumbled carnelian/chalcedony

Microcrystalline quartz (SiO₂), likely iron-stained chalcedony

Tumbled carnelian/chalcedony (Chalcedony (microcrystalline quartz), SiO₂; reddish color from iron oxides) — mineral

Tumbled carnelian/chalcedony

Chalcedony (microcrystalline quartz), SiO₂; reddish color from iron oxides

Tumbled banded agate (likely chalcedony) (Banded microcrystalline quartz, SiO₂; chalcedony variety) — mineral

Tumbled banded agate (likely chalcedony)

Banded microcrystalline quartz, SiO₂; chalcedony variety

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

Polished carnelian (likely brecciated agate) heart (Microcrystalline quartz, SiO₂; chalcedony with iron-oxide coloration) — gemstone

Polished carnelian (likely brecciated agate) heart

Microcrystalline quartz, SiO₂; chalcedony with iron-oxide coloration

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

Jasper with Quartz inclusions

Silicon Dioxide (SiO2)

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

Tumbled agate or chalcedony pebble

Microcrystalline quartz (SiO₂), likely agate/chalcedony

Jasper Pebble (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper Pebble

Microcrystalline Quartz (SiO2)

Tumbled agate/chalcedony pebble (Microcrystalline quartz (SiO₂), likely brown/banded agate or jasper) — mineral

Tumbled agate/chalcedony pebble

Microcrystalline quartz (SiO₂), likely brown/banded agate or jasper

Polished agate slab (likely moss or plume agate) (Microcrystalline quartz, SiO₂; chalcedony with possible iron-oxide inclusions) — mineral

Polished agate slab (likely moss or plume agate)

Microcrystalline quartz, SiO₂; chalcedony with possible iron-oxide inclusions

Tumbled jasper, likely picture jasper or brecciated jasper (Microcrystalline quartz (SiO₂), chiefly chalcedony with iron-oxide pigments) — mineral

Tumbled jasper, likely picture jasper or brecciated jasper

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

Polished banded jasper (likely picture jasper) (Microcrystalline quartz, chiefly SiO₂; jasper with iron-oxide staining) — sedimentary

Polished banded jasper (likely picture jasper)

Microcrystalline quartz, chiefly SiO₂; jasper with iron-oxide staining

Tumbled jasper (likely brecciated or orbicular jasper) (Microcrystalline quartz/chalcedony, SiO₂, with iron-oxide inclusions) — mineral

Tumbled jasper (likely brecciated or orbicular jasper)

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

Agate Bookend / Quartz Geode (Silicon Dioxide (SiO2)) — mineral

Agate Bookend / Quartz Geode

Silicon Dioxide (SiO2)

Red jasper (Microcrystalline quartz (SiO₂), commonly colored by iron oxides) — mineral

Red jasper

Microcrystalline quartz (SiO₂), commonly colored by iron oxides

Tumbled jasper or chert (Microcrystalline quartz (SiO₂), likely jasper/chalcedony) — mineral

Tumbled jasper or chert

Microcrystalline quartz (SiO₂), likely jasper/chalcedony

Red jasper (likely polished/tumbled) (Microcrystalline quartz/chalcedony, SiO₂, colored mainly by iron oxides) — mineral

Red jasper (likely polished/tumbled)

Microcrystalline quartz/chalcedony, SiO₂, colored mainly by iron oxides

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

Red jasper pebble

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

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

Polished banded agate

Agate, a banded variety of chalcedony (microcrystalline SiO₂)

Agate (Chalcedony Variation) (Silicon Dioxide (SiO2)) — mineral

Agate (Chalcedony Variation)

Silicon Dioxide (SiO2)

Chert (likely chalcedony-rich flint) (Microcrystalline quartz, SiO₂ (quartz/chalcedony)) — sedimentary

Chert (likely chalcedony-rich flint)

Microcrystalline quartz, SiO₂ (quartz/chalcedony)

Carnelian (orange chalcedony), possibly fire agate (Microcrystalline quartz, SiO₂ (chalcedony variety)) — gemstone

Carnelian (orange chalcedony), possibly fire agate

Microcrystalline quartz, SiO₂ (chalcedony variety)

Tumbled chalcedony or agate (Microcrystalline quartz (SiO₂), likely chalcedony with iron-oxide staining) — mineral

Tumbled chalcedony or agate

Microcrystalline quartz (SiO₂), likely chalcedony with iron-oxide staining

Tumbled blue chalcedony or pale aquamarine-like quartz (Chalcedony (microcrystalline SiO₂), possibly blue quartz; visual identification is uncertain) — mineral

Tumbled blue chalcedony or pale aquamarine-like quartz

Chalcedony (microcrystalline SiO₂), possibly blue quartz; visual identification is uncertain

Polished yellow-orange stone pendant, possibly carnelian or yellow chalcedony (Chalcedony, microcrystalline quartz (SiO₂); identification from the photo is uncertain) — gemstone

Polished yellow-orange stone pendant, possibly carnelian or yellow chalcedony

Chalcedony, microcrystalline quartz (SiO₂); identification from the photo is uncertain

Polished red jasper (likely brecciated or orbicular jasper) (Jasper, microcrystalline quartz (SiO₂) with iron-oxide inclusions) — mineral

Polished red jasper (likely brecciated or orbicular jasper)

Jasper, microcrystalline quartz (SiO₂) with iron-oxide inclusions

Jasper (likely red/brown jasper pebble) (Microcrystalline quartz (SiO₂), an opaque variety of chalcedony; exact identification is uncertain from the photo) — sedimentary

Jasper (likely red/brown jasper pebble)

Microcrystalline quartz (SiO₂), an opaque variety of chalcedony; exact identification is uncertain from the photo

Jasper or Chalcedony (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper or Chalcedony

Microcrystalline Quartz (SiO2)

Tumbled amber-colored chalcedony (likely carnelian) (Quartz, microcrystalline SiO₂; orange variety commonly called carnelian) — mineral

Tumbled amber-colored chalcedony (likely carnelian)

Quartz, microcrystalline SiO₂; orange variety commonly called carnelian

Tumbled banded blue agate (Chalcedony (microcrystalline quartz, SiO₂), variety agate) — mineral

Tumbled banded blue agate

Chalcedony (microcrystalline quartz, SiO₂), variety agate

Carnelian (Carnelian (Chalcedony / Quartz variety, SiO2)) — mineral

Carnelian

Carnelian (Chalcedony / Quartz variety, SiO2)

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

Red jasper

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

Polished red jasper pebble (Jasper, microcrystalline quartz (SiO₂) colored mainly by hematite/goethite) — metamorphic

Polished red jasper pebble

Jasper, microcrystalline quartz (SiO₂) colored mainly by hematite/goethite

Tumbled blue chalcedony/agate (likely glassy silica material) (Microcrystalline quartz, SiO₂; possibly blue chalcedony or dyed agate) — mineral

Tumbled blue chalcedony/agate (likely glassy silica material)

Microcrystalline quartz, SiO₂; possibly blue chalcedony or dyed agate

Black Onyx (Silicon Dioxide (SiO2)) — mineral

Black Onyx

Silicon Dioxide (SiO2)