Rock Identifier

Community gallery

All rocks & minerals

Every specimen the Rock Identifier community has discovered, from desert agates to deep-sea basalts.

Explore the rock & mineral encyclopedia

Acanthite

Achroite

Adinole

Adirondack Garnet

Adirondack Garnet

Adularia

Agate

Albite

Albitite

Alexandrite

Alkali Feldspar

Alkali Feldspar

Almandine Garnet

Almandine Garnet

Alnöite

Chert / Flint (Silicon Dioxide (Microcrystalline Quartz, SiO2)) — sedimentary

Chert / Flint

Silicon Dioxide (Microcrystalline Quartz, SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Agate (Silicon Dioxide (Chalcedony), SiO2) — sedimentary

Agate

Silicon Dioxide (Chalcedony), SiO2

Chert / Flint Nodule (Cryptocrystalline quartz (SiO2)) — sedimentary

Chert / Flint Nodule

Cryptocrystalline quartz (SiO2)

Agate (Silicon Dioxide (Chalcedony), SiO2) — sedimentary

Agate

Silicon Dioxide (Chalcedony), SiO2

Agate (Silicon Dioxide (Chalcedony), SiO2) — sedimentary

Agate

Silicon Dioxide (Chalcedony), SiO2

Conglomerate (Conglomerate (clastic sedimentary rock)) — sedimentary

Conglomerate

Conglomerate (clastic sedimentary rock)

Sandstone (Clastic Sedimentary Rock) — sedimentary

Sandstone

Clastic Sedimentary Rock

Rose Quartz and Pegmatite (Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese) — mineral

Rose Quartz and Pegmatite

Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese

Agate (Silicon dioxide (Chalcedony), SiO2) — sedimentary

Agate

Silicon dioxide (Chalcedony), SiO2

Green Granite / Verd Antique (Serpentinite / Metasomatized Peridotite) — metamorphic

Green Granite / Verd Antique

Serpentinite / Metasomatized Peridotite

Lazulite Quartzite (Quartzite with Lazulite (SiO2 with (Mg,Fe)Al2(PO4)2(OH)2)) — metamorphic

Lazulite Quartzite

Quartzite with Lazulite (SiO2 with (Mg,Fe)Al2(PO4)2(OH)2)

Purple Chalcedony (Silicon Dioxide (SiO2)) — mineral

Purple Chalcedony

Silicon Dioxide (SiO2)

Chalcedony (Agate/Jasper Nodule) (Silicon Dioxide (SiO2)) — sedimentary

Chalcedony (Agate/Jasper Nodule)

Silicon Dioxide (SiO2)

Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

Jasper (Silicon Dioxide (SiO2) microcrystalline quartz) — sedimentary

Jasper

Silicon Dioxide (SiO2) microcrystalline quartz

Conglomerate (Sedimentary Conglomerate) — sedimentary

Conglomerate

Sedimentary Conglomerate

Orbicular Gabbro (Orbicular Gabbro) — igneous

Orbicular Gabbro

Orbicular Gabbro

Greenstone (Metabasalt / Greenschist) — metamorphic

Greenstone

Metabasalt / Greenschist

Brecciated Jasper (Silicon Dioxide (SiO2) with mineral impurities) — sedimentary

Brecciated Jasper

Silicon Dioxide (SiO2) with mineral impurities

Agate (Silicon Dioxide (Chalcedony), SiO2) — sedimentary

Agate

Silicon Dioxide (Chalcedony), SiO2

Unakite (Altered Granite (Epidotized Granite)) — metamorphic

Unakite

Altered Granite (Epidotized Granite)

Porphyritic Basalt or Porphyritic Andesite (Porphyritic Extrusive Igneous Rock) — igneous

Porphyritic Basalt or Porphyritic Andesite

Porphyritic Extrusive Igneous Rock

Amygdaloidal Basalt (Extrusive Igneous Rock with Secondary Mineral Fillings) — igneous

Amygdaloidal Basalt

Extrusive Igneous Rock with Secondary Mineral Fillings

Granite / Diorite Xenolith or Contact (Felsic-Mafic Intrusive Igneous Rock) — igneous

Granite / Diorite Xenolith or Contact

Felsic-Mafic Intrusive Igneous Rock

Granite (Phaneritic Felsic/Intermediate Igneous Rock) — igneous

Granite

Phaneritic Felsic/Intermediate Igneous Rock

Agate (Silicon Dioxide (Chalcedony), SiO2) — sedimentary

Agate

Silicon Dioxide (Chalcedony), SiO2

Granite (Felsic intrusive igneous rock) — igneous

Granite

Felsic intrusive igneous rock

Geode (Quartz nodule / Chalcedony-lined cavity) — sedimentary

Geode

Quartz nodule / Chalcedony-lined cavity

Jasper (Silicon Dioxide (Microcrystalline Quartz, SiO2)) — sedimentary

Jasper

Silicon Dioxide (Microcrystalline Quartz, SiO2)

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

Green Aventurine

Quartz (SiO2) with fuchsite inclusions

Aventurine (Quartz (SiO2) with fuchsite inclusions) — mineral

Aventurine

Quartz (SiO2) with fuchsite inclusions

Aventurine (Quartz with fuchsite inclusions (SiO2)) — mineral

Aventurine

Quartz with fuchsite inclusions (SiO2)

White Quartz (Silicon Dioxide (SiO2)) — mineral

White Quartz

Silicon Dioxide (SiO2)

Pink Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Pink Quartz Pebble

Silicon Dioxide (SiO2)

Porphyritic Basalt or Diabase (Mafic igneous rock with porphyritic texture) — igneous

Porphyritic Basalt or Diabase

Mafic igneous rock with porphyritic texture

Agate (Silicon Dioxide (Chalcedony), SiO2) — sedimentary

Agate

Silicon Dioxide (Chalcedony), SiO2

Jasper (Quartz (SiO2)) — sedimentary

Jasper

Quartz (SiO2)

Granite (Intrusive Igneous Rock) — igneous

Granite

Intrusive Igneous Rock

Pink Zebra Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Pink Zebra Jasper

Microcrystalline Quartz (SiO2)

Rose Quartz (Silicon Dioxide (SiO2)) — mineral

Rose Quartz

Silicon Dioxide (SiO2)

Clear Quartz Crystal (Silicon Dioxide (SiO2), Quartz) — mineral

Clear Quartz Crystal

Silicon Dioxide (SiO2), Quartz