Rock Identifier

Category

Mineral (Or Mineraloid If Microcrystalline)

Browse mineral (or mineraloid if microcrystalline) specimens identified by the Rock Identifier community.

Learn about Mineral (Or Mineraloid If Microcrystalline) in the encyclopedia

Shungite

Flower Jasper

Feather Jasper

Dendritic Jasper

Blue Jasper

Sperrylite

Brookite

Leopard Skin Jasper

Leopard Skin Jasper

Banalsite

Black Shale

Garnierite

Wulfenite

Polished brecciated jasper (likely Picasso jasper) (Brecciated microcrystalline quartz/chalcedony; mainly SiO₂ with iron- and manganese-rich matrix) — metamorphic

Polished brecciated jasper (likely Picasso jasper)

Brecciated microcrystalline quartz/chalcedony; mainly SiO₂ with iron- and manganese-rich matrix

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

Red jasper pebble

Microcrystalline quartz (chalcedony), SiO₂, colored by iron oxides

Polished agate geode slice (Microcrystalline quartz (chalcedony), SiO₂) — mineral

Polished agate geode slice

Microcrystalline quartz (chalcedony), SiO₂

Polished jasper pebble (Jasper (microcrystalline quartz, SiO₂)) — sedimentary

Polished jasper pebble

Jasper (microcrystalline quartz, SiO₂)

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

Limonite or Goethite (Ironstone) (Hydrated Iron(III) Oxide-Hydroxide (FeO(OH)·nH2O)) — mineral

Limonite or Goethite (Ironstone)

Hydrated Iron(III) Oxide-Hydroxide (FeO(OH)·nH2O)

Limonite Geode / Ironstone Concretion (Hydrated Iron Oxide (FeO(OH)·nH2O)) — sedimentary

Limonite Geode / Ironstone Concretion

Hydrated Iron Oxide (FeO(OH)·nH2O)

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

Chert (Jasper/Chalcedony mix)

Microcrystalline Quartz (SiO2)

Red Jasper with Quartz (Microcrystalline Quartz (SiO2)) — sedimentary

Red Jasper with Quartz

Microcrystalline Quartz (SiO2)

Brecciated Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Brecciated Jasper

Microcrystalline Quartz (SiO2)

Dalmatian Jasper (Dalmatian Stone (comprised of Feldspar, Quartz, and Arfvedsonite)) — igneous

Dalmatian Jasper

Dalmatian Stone (comprised of Feldspar, Quartz, and Arfvedsonite)

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

Tumbled brown jasper

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

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

Tumbled red jasper

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

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

Tumbled red jasper (probable)

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

Orange Quartz (Ferruginous Quartz) (Silicon Dioxide (SiO2) with Iron Oxide inclusions) — mineral

Orange Quartz (Ferruginous Quartz)

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Tumbled jasper (Microcrystalline quartz (SiO₂), commonly iron-rich jasper) — mineral

Tumbled jasper

Microcrystalline quartz (SiO₂), commonly iron-rich jasper

Jasper (Microcrystalline quartz (SiO2)) — sedimentary

Jasper

Microcrystalline quartz (SiO2)

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

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

Polished jasper pebble

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

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

Tumbled blue chalcedony (likely blue quartz/chalcedony) (Cryptocrystalline silica, SiO₂; likely chalcedony, possibly dyed or surface-coated) — mineral

Tumbled blue chalcedony (likely blue quartz/chalcedony)

Cryptocrystalline silica, SiO₂; likely chalcedony, possibly dyed or surface-coated

Quartz (Chert/Chalcedony variant) (Silicon dioxide (SiO2)) — mineral

Quartz (Chert/Chalcedony variant)

Silicon dioxide (SiO2)

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

Yellow Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

Carnelian (Tumbled Quartz/Chalcedony Pebble) (Silicon Dioxide (SiO2)) — mineral

Carnelian (Tumbled Quartz/Chalcedony Pebble)

Silicon Dioxide (SiO2)

Purple Chalcedony (Silicon Dioxide (SiO2)) — mineral

Purple Chalcedony

Silicon Dioxide (SiO2)

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

Tumbled chalcedony (likely moss or dendritic agate)

Microcrystalline quartz, SiO₂, with iron-oxide inclusions

Banded agate (Chalcedony, microcrystalline SiO₂) — mineral

Banded agate

Chalcedony, microcrystalline SiO₂

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

Botryoidal chalcedony (likely chert/flint nodule)

Microcrystalline quartz, SiO₂

Blue-gray chalcedony (likely blue agate) (Microcrystalline quartz, SiO₂) — mineral

Blue-gray chalcedony (likely blue agate)

Microcrystalline quartz, SiO₂

Botryoidal chalcedony (likely agate/jasper variety) (Microcrystalline quartz, SiO₂) — mineral

Botryoidal chalcedony (likely agate/jasper variety)

Microcrystalline quartz, SiO₂

Botryoidal chalcedony (possible agate or silica sinter) (Microcrystalline quartz, SiO₂) — mineral

Botryoidal chalcedony (possible agate or silica sinter)

Microcrystalline quartz, SiO₂

Polished yellow chalcedony (likely lemon agate or yellow jasper) (Microcrystalline quartz, SiO₂) — mineral

Polished yellow chalcedony (likely lemon agate or yellow jasper)

Microcrystalline quartz, SiO₂

Red Jasper Cube (SiO2 (microcrystalline quartz)) — mineral

Red Jasper Cube

SiO2 (microcrystalline quartz)

Banded Agate (Dyed / Polished) (Microcrystalline Quartz (SiO2)) — mineral

Banded Agate (Dyed / Polished)

Microcrystalline Quartz (SiO2)

Yellow Jasper (SiO2 (Microcrystalline Quartz)) — mineral

Yellow Jasper

SiO2 (Microcrystalline Quartz)

Dendritic Jasper (SiO2 (Microcrystalline Quartz)) — mineral

Dendritic Jasper

SiO2 (Microcrystalline Quartz)

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

Chalcedony (likely agate/chert fragment)

Microcrystalline quartz, SiO₂

Chalcedony (gray-white agate) (Microcrystalline quartz, SiO₂) — mineral

Chalcedony (gray-white agate)

Microcrystalline quartz, SiO₂

Chalcedony (possibly agate or common quartz) (Microcrystalline quartz, SiO₂) — mineral

Chalcedony (possibly agate or common quartz)

Microcrystalline quartz, SiO₂