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

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

Agate

Silicon Dioxide (SiO2) - variety of Chalcedony

Botryoidal chalcedony (likely chert/flint nodule) (Microcrystalline quartz, SiO₂) — mineral

Botryoidal chalcedony (likely chert/flint nodule)

Microcrystalline quartz, SiO₂

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

Red Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

Jasper / Quartz Pebble (Silicon Dioxide (SiO2)) — sedimentary

Jasper / Quartz Pebble

Silicon Dioxide (SiO2)

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

Polished red jasper

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

Polished red-and-cream jasper (Jasper, microcrystalline quartz (SiO₂), colored mainly by iron oxides) — mineral

Polished red-and-cream jasper

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

Dalmatian jasper (Quartz-bearing alkali feldspar syenite/porphyritic igneous rock, commonly marketed as Dalmatian jasper) — igneous

Dalmatian jasper

Quartz-bearing alkali feldspar syenite/porphyritic igneous rock, commonly marketed as Dalmatian jasper

Polished brecciated jasper (Jasper, microcrystalline quartz (SiO₂), with iron-oxide and pale silica-rich fragments) — mineral

Polished brecciated jasper

Jasper, microcrystalline quartz (SiO₂), with iron-oxide and pale silica-rich fragments

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

Red jasper pebble

Microcrystalline quartz (SiO₂), colored by iron oxides

Polished brecciated jasper (Jasper (microcrystalline quartz, SiO₂), likely brecciated and iron-stained) — metamorphic

Polished brecciated jasper

Jasper (microcrystalline quartz, SiO₂), likely brecciated and iron-stained

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

Tumbled red jasper

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

Rounded brown chert or jasper pebble (Microcrystalline quartz (SiO₂), likely ferruginous chert/jasper) — sedimentary

Rounded brown chert or jasper pebble

Microcrystalline quartz (SiO₂), likely ferruginous chert/jasper

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

Red-orange jasper pebble

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

Tumbled jasper or iron-rich chert (Microcrystalline quartz (SiO₂), likely with iron-oxide inclusions) — mineral

Tumbled jasper or iron-rich chert

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

Iron-rich chert or jasper (Microcrystalline quartz (SiO₂), variably stained by iron oxides/hydroxides) — sedimentary

Iron-rich chert or jasper

Microcrystalline quartz (SiO₂), variably stained by iron oxides/hydroxides

Polished red jasper (likely brecciated or opaque chalcedony) (Jasper, microcrystalline quartz (SiO₂), commonly colored by iron oxides) — mineral

Polished red jasper (likely brecciated or opaque chalcedony)

Jasper, microcrystalline 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

Yellow jasper or iron-stained chert (Microcrystalline quartz (SiO₂), commonly colored by iron oxides) — sedimentary

Yellow jasper or iron-stained chert

Microcrystalline quartz (SiO₂), commonly colored by 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

Banded jasper (likely mookaite or brecciated jasper) (Microcrystalline quartz/chalcedony (SiO₂) with iron-oxide and clay inclusions) — mineral

Banded jasper (likely mookaite or brecciated jasper)

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

White flint or chert flake (Microcrystalline quartz (SiO₂), likely chert/flint) — sedimentary

White flint or chert flake

Microcrystalline quartz (SiO₂), likely chert/flint

Weathered jasper-rich ironstone (Brecciated jasper/chert with iron oxides and hydroxides (SiO₂ with hematite, goethite, and limonite)) — sedimentary

Weathered jasper-rich ironstone

Brecciated jasper/chert with iron oxides and hydroxides (SiO₂ with hematite, goethite, and limonite)

Polished/tumbled jasper or chert pebble (Microcrystalline quartz (SiO₂), likely ferruginous jasper/chert) — mineral

Polished/tumbled jasper or chert pebble

Microcrystalline quartz (SiO₂), likely ferruginous jasper/chert

Dalmatian jasper (Orbicular rhyolite, commonly sold as Dalmatian jasper; mainly quartz, feldspar, and altered mafic minerals) — igneous

Dalmatian jasper

Orbicular rhyolite, commonly sold as Dalmatian jasper; mainly quartz, feldspar, and altered mafic minerals

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

Tumbled jasper pebble

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

Chert (Flint variety) (Silicon dioxide (SiO2)) — sedimentary

Chert (Flint variety)

Silicon dioxide (SiO2)

Brown Chalcedony (Agate/Jasper blend) (Silicon dioxide (SiO2)) — sedimentary

Brown Chalcedony (Agate/Jasper blend)

Silicon dioxide (SiO2)

Amethyst Geode (Quartz (SiO2, variety Amethyst)) — mineral

Amethyst Geode

Quartz (SiO2, variety Amethyst)

Chalcedony with Druzy Quartz Geode (Silicon Dioxide (SiO2)) — mineral

Chalcedony with Druzy Quartz Geode

Silicon Dioxide (SiO2)

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

Red Jasper

Jasper (Silicon Dioxide with Iron Oxide inclusions, SiO2)

Chalcedony (likely agate/chert fragment) (Microcrystalline quartz, SiO₂) — mineral

Chalcedony (likely agate/chert fragment)

Microcrystalline quartz, SiO₂

Polished brecciated jasper (Jasper, microcrystalline quartz (SiO₂), commonly iron-oxide and clay-rich) — metamorphic

Polished brecciated jasper

Jasper, microcrystalline quartz (SiO₂), commonly iron-oxide and clay-rich

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

Red jasper

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

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

Red jasper

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

Polished jasper or iron-stained chert (Microcrystalline quartz (SiO₂), commonly chalcedony with iron-oxide staining) — mineral

Polished jasper or iron-stained chert

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

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

Tumbled jasper or chert

Microcrystalline quartz (SiO₂), likely jasper/chalcedony

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

Polished yellow jasper

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

Chalcedony or chert pebble with iron-oxide staining (Microcrystalline quartz (SiO₂), possibly a weathered chert or flint nodule) — sedimentary

Chalcedony or chert pebble with iron-oxide staining

Microcrystalline quartz (SiO₂), possibly a weathered chert or flint nodule

Tumbled brecciated jasper (Microcrystalline quartz (SiO₂) with iron-oxide and other mineral inclusions) — gemstone

Tumbled brecciated jasper

Microcrystalline quartz (SiO₂) with iron-oxide and other mineral inclusions

Dendritic Chalcedony (Moss Agate / Aquaprase) (Silicon Dioxide (SiO2) with iron/manganese oxide inclusions) — gemstone

Dendritic Chalcedony (Moss Agate / Aquaprase)

Silicon Dioxide (SiO2) with iron/manganese oxide inclusions

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

Chalcedony (Agate / Quartz Pebble)

Silicon Dioxide (SiO2)

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

Red jasper

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