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

Chert / Flint Pebble (Microcrystalline quartz (SiO2)) — sedimentary

Chert / Flint Pebble

Microcrystalline quartz (SiO2)

Carnelian Bracelet (Carnelian (Cryptocrystalline Quartz, SiO2)) — gemstone

Carnelian Bracelet

Carnelian (Cryptocrystalline Quartz, SiO2)

Chert (Flint) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Flint)

Silicon Dioxide (SiO2)

Agate with Druzy Quartz (Silicon Dioxide (SiO2)) — mineral

Agate with Druzy Quartz

Silicon Dioxide (SiO2)

Chert (Black Flint) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Black Flint)

Silicon Dioxide (SiO2)

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

Red Jasper

Silicon Dioxide (SiO2) with Hematite inclusions

Agate (Silicon dioxide (SiO2)) — mineral

Agate

Silicon dioxide (SiO2)

Banded Agate (Silicon Dioxide (SiO2)) — gemstone

Banded Agate

Silicon Dioxide (SiO2)

Yellow Jasper (Silicon Dioxide (SiO2)) — sedimentary

Yellow Jasper

Silicon Dioxide (SiO2)

Riverstone Jasper (Chert variant) (Silicon Dioxide (SiO2) with impurities) — sedimentary

Riverstone Jasper (Chert variant)

Silicon Dioxide (SiO2) with impurities

Carnelian Agate (Silicon Dioxide (SiO2) with iron oxide inclusions) — mineral

Carnelian Agate

Silicon Dioxide (SiO2) with iron oxide inclusions

Yellow-brown tumbled stone, possibly jasper (Unidentified silica-rich material; possible microcrystalline quartz (jasper, SiO₂)) — mineral

Yellow-brown tumbled stone, possibly jasper

Unidentified silica-rich material; possible microcrystalline quartz (jasper, SiO₂)

Agate (SiO2) — mineral

Agate

SiO2

Yellow Quartz (Citrine / Milky Quartz) (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz (Citrine / Milky Quartz)

Silicon Dioxide (SiO2)

Blue-gray chalcedony (rough agate) (Chalcedony, microcrystalline quartz (SiO₂)) — mineral

Blue-gray chalcedony (rough agate)

Chalcedony, microcrystalline quartz (SiO₂)

Gray chalcedony (possibly agate) (Microcrystalline quartz, SiO₂) — mineral

Gray chalcedony (possibly agate)

Microcrystalline quartz, SiO₂

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

Red Jasper

Silicon Dioxide (SiO2) with Iron Oxide inclusions

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

Green Jasper

Silicon Dioxide (SiO2) with iron silicate inclusions

Jasper / Chert (Iron-stained Quartz) (SiO2 (Silicon Dioxide with Iron Oxide inclusions)) — sedimentary

Jasper / Chert (Iron-stained Quartz)

SiO2 (Silicon Dioxide with Iron Oxide inclusions)

Jasper (Silicon dioxide (SiO2)) — mineral

Jasper

Silicon dioxide (SiO2)

Banded Agate (Silicon Dioxide (SiO2)) — sedimentary

Banded Agate

Silicon Dioxide (SiO2)

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

Agate

Silicon dioxide (SiO2) - variety Chalcedony

Banded Agate (Silicon Dioxide (SiO2)) — mineral

Banded Agate

Silicon Dioxide (SiO2)

Chert (Arrowhead) (Chert (SiO2)) — sedimentary

Chert (Arrowhead)

Chert (SiO2)

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

Quartz (Chert / Agate / Chalcedony)

Silicon Dioxide (SiO2)

Banded Calcite (Calcium Carbonate (CaCO3)) — sedimentary

Banded Calcite

Calcium Carbonate (CaCO3)

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

Red jasper pebble

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

Polished leopard-skin jasper (Jasper (microcrystalline quartz, SiO₂), commonly orbicular or brecciated varieties) — sedimentary

Polished leopard-skin jasper

Jasper (microcrystalline quartz, SiO₂), commonly orbicular or brecciated varieties

Banded Calcite (Onyx Marble / Travertine) (Calcium Carbonate (CaCO3)) — sedimentary

Banded Calcite (Onyx Marble / Travertine)

Calcium Carbonate (CaCO3)

Polished orbicular jasper (likely ocean jasper) (Silicified microcrystalline quartz (SiO₂), commonly called orbicular jasper or ocean jasper) — mineral

Polished orbicular jasper (likely ocean jasper)

Silicified microcrystalline quartz (SiO₂), commonly called orbicular jasper or ocean jasper

Polished brown jasper (probable ocean jasper or iron-rich jasper) (Microcrystalline quartz/chalcedony, SiO₂, colored by iron oxides and other inclusions) — mineral

Polished brown jasper (probable ocean jasper or iron-rich jasper)

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

Iron-stained quartz-rich stone (probable jasper or chert) (Microcrystalline quartz (SiO₂), likely ferruginous jasper/chert) — sedimentary

Iron-stained quartz-rich stone (probable jasper or chert)

Microcrystalline quartz (SiO₂), likely ferruginous jasper/chert

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

Tumbled brown jasper

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

Tumbled jasper/chalcedony (Microcrystalline quartz (SiO₂), likely brecciated or iron-stained jasper) — mineral

Tumbled jasper/chalcedony

Microcrystalline quartz (SiO₂), likely brecciated or iron-stained jasper

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

Tumbled brown jasper

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

Jasper (Chert / Chalcedony) (Silicon Dioxide (SiO2) with Iron Oxide inclusions) — mineral

Jasper (Chert / Chalcedony)

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Yellow jasper (likely iron-stained chert or quartzite) (Microcrystalline quartz, SiO₂, colored by iron oxides/hydroxides) — mineral

Yellow jasper (likely iron-stained chert or quartzite)

Microcrystalline quartz, SiO₂, colored by iron oxides/hydroxides

Polished agate/jasper pebble (Microcrystalline quartz (chalcedony), SiO₂, with likely iron-oxide and clay inclusions) — mineral

Polished agate/jasper pebble

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

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

Yellow Jasper

Silicon Dioxide (SiO2) with Goethite/Iron inclusions

Jasper in Rhyolite matrix (Silicon Dioxide (SiO2) with various inclusions in Felsic Igneous matrix) — igneous

Jasper in Rhyolite matrix

Silicon Dioxide (SiO2) with various inclusions in Felsic Igneous matrix

Iron-stained chert (possibly jasper) (Microcrystalline quartz (SiO₂), colored by iron oxides) — sedimentary

Iron-stained chert (possibly jasper)

Microcrystalline quartz (SiO₂), colored by iron oxides

Tumbled brown chert or jasper (Microcrystalline quartz (SiO₂), likely iron-stained chert/jasper) — sedimentary

Tumbled brown chert or jasper

Microcrystalline quartz (SiO₂), likely iron-stained chert/jasper