Rock Identifier

Category

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 pink banded agate (Chalcedony (microcrystalline quartz, SiO₂), an agate variety) — mineral

Tumbled pink banded agate

Chalcedony (microcrystalline quartz, SiO₂), an agate variety

Dyed Blue Agate (Slab) (Agate (Variety of Chalcedony/Microcrystalline Quartz), SiO2) — mineral

Dyed Blue Agate (Slab)

Agate (Variety of Chalcedony/Microcrystalline Quartz), SiO2

Red jasper (Jasper, microcrystalline quartz (SiO₂) with iron-oxide impurities) — metamorphic

Red jasper

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

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

Polished banded agate

Agate, a banded variety of microcrystalline quartz (SiO₂; chalcedony)

Polished carnelian/chalcedony nodule (Microcrystalline quartz (SiO₂), orange-red chalcedony variety) — gemstone

Polished carnelian/chalcedony nodule

Microcrystalline quartz (SiO₂), orange-red chalcedony variety

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

Jasper with Chert

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Agate (Silicon Dioxide (SiO2) - Chalcedony variety) — mineral

Agate

Silicon Dioxide (SiO2) - Chalcedony variety

Polished carnelian (Chalcedony (microcrystalline quartz), SiO₂) — gemstone

Polished carnelian

Chalcedony (microcrystalline quartz), SiO₂

Banded agate cabochon (Microcrystalline quartz (chalcedony), SiO₂) — gemstone

Banded agate cabochon

Microcrystalline quartz (chalcedony), SiO₂

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

Yellow Chalcedony (Agate/Chert) (Cryptocrystalline Quartz (SiO2)) — mineral

Yellow Chalcedony (Agate/Chert)

Cryptocrystalline Quartz (SiO2)

Blue chalcedony cabochon (Microcrystalline quartz (SiO₂), chalcedony variety) — gemstone

Blue chalcedony cabochon

Microcrystalline quartz (SiO₂), chalcedony variety

Blue Agate Geode (Dyed) (Cryptocrystalline Quartz (SiO2)) — mineral

Blue Agate Geode (Dyed)

Cryptocrystalline Quartz (SiO2)

Chrysoprase (Chalcedony (Silicon Dioxide, SiO2)) — mineral

Chrysoprase

Chalcedony (Silicon Dioxide, SiO2)

Polished brecciated jasper (likely septarian or iron-rich jasper) (Microcrystalline quartz (chalcedony), SiO₂, with iron oxides and possibly calcite or other rock fragments) — sedimentary

Polished brecciated jasper (likely septarian or iron-rich jasper)

Microcrystalline quartz (chalcedony), SiO₂, with iron oxides and possibly calcite or other rock fragments

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

Red Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

Quartzite with Chalcedony (Metamorphosed Quartz-rich Sandstone (SiO2)) — metamorphic

Quartzite with Chalcedony

Metamorphosed Quartz-rich Sandstone (SiO2)

Amethyst geode slice (Quartz (SiO₂), purple variety amethyst; commonly a volcanic vesicle geode) — mineral

Amethyst geode slice

Quartz (SiO₂), purple variety amethyst; commonly a volcanic vesicle geode

Blue Chalcedony and Picture Jasper Beads (Blue Chalcedony (SiO2), Picture Jasper (SiO2)) — Mineral

Blue Chalcedony and Picture Jasper Beads

Blue Chalcedony (SiO2), Picture Jasper (SiO2)

Tumbled bloodstone (heliotrope), probable (Chalcedony (microcrystalline quartz, SiO₂) with iron-oxide inclusions) — mineral

Tumbled bloodstone (heliotrope), probable

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

Carnelian (orange chalcedony) (Chalcedony, microcrystalline quartz (SiO₂), iron-colored variety) — gemstone

Carnelian (orange chalcedony)

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

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

Agate (or Chalcedony)

Silicon Dioxide (SiO2)

Brown chalcedony (likely jasper or chert) (Microcrystalline quartz, SiO₂; opaque iron-oxide-rich variety) — mineral

Brown chalcedony (likely jasper or chert)

Microcrystalline quartz, SiO₂; opaque iron-oxide-rich variety

Quartz (Chert/Chalcedony variety) (Silicon Dioxide (SiO2)) — mineral

Quartz (Chert/Chalcedony variety)

Silicon Dioxide (SiO2)

Gray chalcedony (likely gray agate) bracelet (Chalcedony, microcrystalline quartz (SiO₂)) — gemstone

Gray chalcedony (likely gray agate) bracelet

Chalcedony, microcrystalline quartz (SiO₂)

Gray chalcedony (common agate/jasper fragment) (Microcrystalline quartz, SiO₂; likely chalcedony with weathered host-rock rind) — mineral

Gray chalcedony (common agate/jasper fragment)

Microcrystalline quartz, SiO₂; likely chalcedony with weathered host-rock rind

Tumbled pink chalcedony (likely pink agate/jasper) (Microcrystalline quartz, SiO₂, with iron-oxide coloring) — mineral

Tumbled pink chalcedony (likely pink agate/jasper)

Microcrystalline quartz, SiO₂, with iron-oxide coloring

Tumbled red jasper (Jasper, microcrystalline quartz (SiO₂) with iron-oxide inclusions) — mineral

Tumbled red jasper

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

Banded agate beads (Agate, a microcrystalline variety of quartz (SiO₂)) — mineral

Banded agate beads

Agate, a microcrystalline variety of quartz (SiO₂)

Chert or chalcedony nodule (Microcrystalline quartz (SiO₂), possibly weathered chert) — mineral

Chert or chalcedony nodule

Microcrystalline quartz (SiO₂), possibly weathered chert

Chert / Chalcedony (Microcrystalline Quartz (SiO2)) — sedimentary

Chert / Chalcedony

Microcrystalline Quartz (SiO2)

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

Polished jasper (likely brecciated or orbicular jasper)

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

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

Red jasper

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

Polished red jasper (Jasper, microcrystalline quartz (SiO₂) colored chiefly by hematite/iron oxides) — mineral

Polished red jasper

Jasper, microcrystalline quartz (SiO₂) colored chiefly by hematite/iron oxides

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

Red jasper

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

Polished jasper, likely ocean jasper or brecciated jasper (Microcrystalline quartz/chalcedony, SiO₂, colored by iron oxides and other inclusions) — mineral

Polished jasper, likely ocean jasper or brecciated jasper

Microcrystalline quartz/chalcedony, SiO₂, colored by iron oxides and other inclusions

Likely tumbled jasper or iron-rich chert (Microcrystalline quartz (SiO₂), potentially hematite/goethite-bearing) — mineral

Likely tumbled jasper or iron-rich chert

Microcrystalline quartz (SiO₂), potentially hematite/goethite-bearing

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

Tumbled red jasper (likely brecciated jasper)

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

Tumbled jasper (likely brecciated or common jasper) (Jasper, opaque microcrystalline quartz (SiO₂) with iron-oxide impurities) — mineral

Tumbled jasper (likely brecciated or common jasper)

Jasper, opaque microcrystalline quartz (SiO₂) with iron-oxide impurities

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

Polished brown jasper (likely brecciated or orbicular jasper)

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

Carnelian (orange-red chalcedony) (Chalcedony, microcrystalline quartz (SiO₂), iron-colored variety) — gemstone

Carnelian (orange-red chalcedony)

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

Dyed Agate (Silicon Dioxide (Chalcedony), SiO2) — gemstone

Dyed Agate

Silicon Dioxide (Chalcedony), SiO2