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

Shale or Siltstone (Fine-grained siliciclastic sedimentary rock) — sedimentary

Shale or Siltstone

Fine-grained siliciclastic sedimentary rock

Banded Jasper (Silicon Dioxide with Iron Oxide impurities (SiO2)) — sedimentary

Banded Jasper

Silicon Dioxide with Iron Oxide impurities (SiO2)

Limonite (Iron Ore) (Hydrated ferric oxide mixture (FeO(OH)·nH2O)) — sedimentary

Limonite (Iron Ore)

Hydrated ferric oxide mixture (FeO(OH)·nH2O)

Tumbled jasper (likely ocean or picture jasper) (Microcrystalline quartz/chalcedony (SiO₂) with iron-oxide and other mineral impurities) — mineral

Tumbled jasper (likely ocean or picture jasper)

Microcrystalline quartz/chalcedony (SiO₂) with iron-oxide and other mineral impurities

Turquoise in Matrix (Hydrated phosphate of copper and aluminium: CuAl6(PO4)4(OH)8·4H2O) — mineral

Turquoise in Matrix

Hydrated phosphate of copper and aluminium: CuAl6(PO4)4(OH)8·4H2O

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

Chert (Chalcedony/Agate)

Microcrystalline Quartz (SiO2)

Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Chert

Microcrystalline Quartz (SiO2)

Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Chert

Microcrystalline Quartz (SiO2)

Green Jasper Pebble (Microcrystalline Quartz (Chalcedony), SiO2) — sedimentary

Green Jasper Pebble

Microcrystalline Quartz (Chalcedony), SiO2

Quartzite Pebble (Metamorphic Quartz-rich Rock (SiO2)) — metamorphic

Quartzite Pebble

Metamorphic Quartz-rich Rock (SiO2)

Polished yellow-brown jasper (Jasper, a microcrystalline variety of quartz (SiO₂), commonly containing iron-oxide impurities) — mineral

Polished yellow-brown jasper

Jasper, a microcrystalline variety of quartz (SiO₂), commonly containing iron-oxide impurities

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

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

Limonite and Goethite on Gossan (FeO(OH)·nH2O) — mineral

Limonite and Goethite on Gossan

FeO(OH)·nH2O

Limonite (Iron Ore) (Limonite (FeO(OH)·nH2O)) — mineral

Limonite (Iron Ore)

Limonite (FeO(OH)·nH2O)

Red jasper (likely polished/tumbled) (Jasper, microcrystalline quartz (SiO₂) colored by iron oxides) — mineral

Red jasper (likely polished/tumbled)

Jasper, microcrystalline quartz (SiO₂) colored by iron oxides

Tumbled red jasper (likely dyed) (Jasper, microcrystalline quartz/chalcedony (SiO₂), colored by iron oxides; possibly dyed) — mineral

Tumbled red jasper (likely dyed)

Jasper, microcrystalline quartz/chalcedony (SiO₂), colored by iron oxides; possibly dyed

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

Tumbled jasper (likely orbicular or brecciated jasper)

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

Agate (Silicon Dioxide / Cryptocrystalline Quartz (SiO2)) — mineral

Agate

Silicon Dioxide / Cryptocrystalline Quartz (SiO2)

Jasper (Silicon Dioxide (SiO2)) — sedimentary

Jasper

Silicon Dioxide (SiO2)

Jasper (Silicon dioxide (SiO2) with iron impurities) — sedimentary

Jasper

Silicon dioxide (SiO2) with iron impurities

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

Tumbled agate or chalcedony

Microcrystalline quartz, SiO₂

Chalcedony (Carnelian / Agate pebble) (Microcrystalline Quartz (SiO2)) — mineral

Chalcedony (Carnelian / Agate pebble)

Microcrystalline Quartz (SiO2)

Jasper (Microcrystalline Quartz (SiO2)) — mineral

Jasper

Microcrystalline Quartz (SiO2)

Tumbled chalcedony (likely pale agate or quartz) (Chalcedony, microcrystalline SiO₂) — mineral

Tumbled chalcedony (likely pale agate or quartz)

Chalcedony, microcrystalline SiO₂

Tumbled chalcedony (likely moss or plume variety) (Microcrystalline quartz, SiO₂) — mineral

Tumbled chalcedony (likely moss or plume variety)

Microcrystalline quartz, SiO₂

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

Chalcedony (probably agate or common quartz)

Microcrystalline quartz, SiO₂

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

Tumbled chalcedony (likely common quartz/jasper)

Microcrystalline quartz, SiO₂

Blue chalcedony (probable) (Microcrystalline quartz, SiO₂) — mineral

Blue chalcedony (probable)

Microcrystalline quartz, SiO₂

Chalcedony (likely yellow agate or jasper fragment) (Microcrystalline quartz, SiO₂) — mineral

Chalcedony (likely yellow agate or jasper fragment)

Microcrystalline quartz, SiO₂

Chalcedony (Agate/Common Opal blend) (Microcrystalline Quartz (SiO2)) — mineral

Chalcedony (Agate/Common Opal blend)

Microcrystalline Quartz (SiO2)

Jasper (Microcrystalline Quartz (SiO2)) — mineral

Jasper

Microcrystalline Quartz (SiO2)

Jasper (Microcrystalline Quartz (SiO2)) — mineral

Jasper

Microcrystalline Quartz (SiO2)

Jasper (Microcrystalline Quartz (SiO2)) — mineral

Jasper

Microcrystalline Quartz (SiO2)

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

Chalcedony (likely agate or chert)

Microcrystalline quartz, SiO₂

Botryoidal Chalcedony with Iron Staining (Microcrystalline Quartz (SiO2)) — mineral

Botryoidal Chalcedony with Iron Staining

Microcrystalline Quartz (SiO2)

Chalcedony (Yellow/Honey variety) (Microcrystalline Quartz (SiO2)) — mineral

Chalcedony (Yellow/Honey variety)

Microcrystalline Quartz (SiO2)

Chalcedony (likely common gray chalcedony) (Microcrystalline quartz, SiO₂) — mineral

Chalcedony (likely common gray chalcedony)

Microcrystalline quartz, SiO₂

Green Jasper / Bloodstone (SiO2 (Microcrystalline Quartz)) — mineral

Green Jasper / Bloodstone

SiO2 (Microcrystalline Quartz)

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

Chalcedony (likely agate/chert variety)

Microcrystalline quartz, SiO₂

Yellow chalcedony (likely heat-treated or resin-coated) (Microcrystalline quartz, SiO₂) — mineral

Yellow chalcedony (likely heat-treated or resin-coated)

Microcrystalline quartz, SiO₂

Blue Chalcedony (Microcrystalline Quartz (SiO2)) — mineral

Blue Chalcedony

Microcrystalline Quartz (SiO2)