Rock Identifier

Category

Microcrystalline Quartz

Browse microcrystalline quartz specimens identified by the Rock Identifier community.

Learn about Microcrystalline Quartz in the encyclopedia

Chalcedony

Chert

Brown Jasper

Flower Jasper

Red Jasper

Feather Jasper

Royal Imperial Jasper

Scenic Jasper

Carrasite Jasper

Map Jasper

Dendritic Jasper

Sonoran Sunset Jasper

Flint / Chert with Cortex (Microcrystalline Quartz (SiO2)) — sedimentary

Flint / Chert with Cortex

Microcrystalline Quartz (SiO2)

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

Quartz (Chert/Chalcedony flake)

Silicon Dioxide (SiO2)

Quartz Pebble (Yellow Quartz / Quartzite Pebble) (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble (Yellow Quartz / Quartzite Pebble)

Silicon Dioxide (SiO2)

Red Jasper (Silicon dioxide (SiO2)) — mineral

Red Jasper

Silicon dioxide (SiO2)

Oolitic Chert (Silicon Dioxide (SiO2) with oolitic texture) — sedimentary

Oolitic Chert

Silicon Dioxide (SiO2) with oolitic texture

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

Carnelian

Silicon Dioxide (Chalcedony variety), SiO2

Agate (Silicon Dioxide (SiO2)) — mineral

Agate

Silicon Dioxide (SiO2)

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

Carnelian Agate

Silicon Dioxide (SiO2) - variety of Chalcedony

Carnelian (Carnelian (Cryptocrystalline Quartz, SiO2)) — mineral

Carnelian

Carnelian (Cryptocrystalline Quartz, SiO2)

Green Aventurine (Quartz with Fuchsite inclusions (SiO2)) — mineral

Green Aventurine

Quartz with Fuchsite inclusions (SiO2)

Tumbled yellow chalcedony (likely yellow jasper) (Microcrystalline quartz, SiO₂; chalcedony/jasper variety) — mineral

Tumbled yellow chalcedony (likely yellow jasper)

Microcrystalline quartz, SiO₂; chalcedony/jasper variety

Green Jasper with Agate Banding (Silicon Dioxide (SiO2) with impurities of ferrous silicate or chlorite) — sedimentary (chemical/biological origin)

Green Jasper with Agate Banding

Silicon Dioxide (SiO2) with impurities of ferrous silicate or chlorite

sedimentary (chemical/biological origin)

Chert Nodule (Flint) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert Nodule (Flint)

Microcrystalline Quartz (SiO2)

Blue-gray flint (chert) (Microcrystalline quartz (SiO₂), a variety of chert) — sedimentary

Blue-gray flint (chert)

Microcrystalline quartz (SiO₂), a variety of chert

Agate Geode (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — mineral

Agate Geode

Silicon Dioxide (SiO2) - Microcrystalline Quartz

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

Yellow Quartz (Chalcedony)

Silicon Dioxide (SiO2)

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

Agate (Chalcedony)

Agate (Silicon Dioxide - SiO2)

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

Jasper (Green)

Silicon Dioxide (SiO2) with impurities

Red Jasper (Silicon Dioxide (SiO2) with Hematite inclusions) — sedimentary

Red Jasper

Silicon Dioxide (SiO2) with Hematite inclusions

Tumbled chalcedony (likely agate or jasper fragment) (Microcrystalline quartz, SiO₂ (chalcedony)) — mineral

Tumbled chalcedony (likely agate or jasper fragment)

Microcrystalline quartz, SiO₂ (chalcedony)

Tumbled red jasper (Jasper, microcrystalline quartz (SiO₂) colored by iron oxides) — mineral

Tumbled red jasper

Jasper, microcrystalline quartz (SiO₂) colored by iron oxides

Yellow Jasper / Chalcedony (Silicon Dioxide (SiO2) with iron inclusions) — mineral

Yellow Jasper / Chalcedony

Silicon Dioxide (SiO2) with iron inclusions

Orange chalcedony / quartz-rich cobble (Microcrystalline quartz (SiO₂), likely iron-oxide-stained chalcedony; exact identification requires testing) — mineral

Orange chalcedony / quartz-rich cobble

Microcrystalline quartz (SiO₂), likely iron-oxide-stained chalcedony; exact identification requires testing

Tumbled red-purple quartzite or jasper (Quartz-rich quartzite/chalcedony aggregate (SiO₂), possibly iron-stained) — metamorphic

Tumbled red-purple quartzite or jasper

Quartz-rich quartzite/chalcedony aggregate (SiO₂), possibly iron-stained

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

Jasper (Chalcedony (SiO2)) — mineral

Jasper

Chalcedony (SiO2)

Polished brown jasper pebble (Jasper, microcrystalline quartz (SiO₂) with iron-oxide and clay impurities) — mineral

Polished brown jasper pebble

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

Leopard skin jasper (orbicular jasper) (Microcrystalline quartz (SiO₂), commonly with iron-oxide and other silicate inclusions) — metamorphic

Leopard skin jasper (orbicular jasper)

Microcrystalline quartz (SiO₂), commonly with iron-oxide and other silicate inclusions

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

Agate (Sliced Nodule)

Silicon Dioxide (SiO2) - Chalcedony variety

Polished yellow jasper pebble (Jasper, microcrystalline quartz (SiO₂) with iron-oxide/clay impurities) — mineral

Polished yellow jasper pebble

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

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

Polished jasper (likely brecciated or orbicular jasper)

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

Iron-rich jasper (likely brecciated or orbicular jasper) (Microcrystalline quartz (SiO₂) colored by iron oxides/hydroxides) — mineral

Iron-rich jasper (likely brecciated or orbicular jasper)

Microcrystalline quartz (SiO₂) colored by iron oxides/hydroxides

Tumbled brecciated jasper (Microcrystalline quartz (SiO₂), commonly with iron-oxide inclusions) — mineral

Tumbled brecciated jasper

Microcrystalline quartz (SiO₂), commonly with iron-oxide inclusions

Polished jasper pebble (Jasper, microcrystalline quartz (SiO₂) with iron-oxide impurities) — mineral

Polished jasper pebble

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

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

Red jasper pebble

Microcrystalline quartz (SiO₂), colored chiefly by iron oxides

Polished brown jasper pebble (Jasper, microcrystalline quartz (SiO₂), commonly with iron-oxide impurities) — mineral

Polished brown jasper pebble

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

Tumbled yellow-brown jasper (Jasper, microcrystalline quartz (SiO₂) with iron-oxide impurities) — mineral

Tumbled yellow-brown jasper

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

Possible weathered chert or flint pebble (Microcrystalline quartz (SiO₂), possibly chalcedony-rich chert) — sedimentary

Possible weathered chert or flint pebble

Microcrystalline quartz (SiO₂), possibly chalcedony-rich chert

Tumbled red jasper (Jasper, an opaque microcrystalline variety of quartz (SiO₂), commonly colored by iron oxides) — mineral

Tumbled red jasper

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

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

Tumbled yellow jasper

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

Red-and-gray jasper (likely orbicular or brecciated jasper) (Jasper, microcrystalline quartz (SiO₂) with iron-oxide pigments) — mineral

Red-and-gray jasper (likely orbicular or brecciated jasper)

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

Dalmatian Jasper (Dalmatian Stone (not a true Jasper, primarily a Perthitic Feldspar with Arfvedsonite)) — igneous

Dalmatian Jasper

Dalmatian Stone (not a true Jasper, primarily a Perthitic Feldspar with Arfvedsonite)