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

Leopard Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Leopard Jasper

Microcrystalline Quartz (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Jasper (Silicon Dioxide (Microcrystalline Quartz, $SiO_2$)) — sedimentary

Jasper

Silicon Dioxide (Microcrystalline Quartz, $SiO_2$)

Fossil Coral (Petoskey Stone / Rugose Coral) (Hexagonaria percarinata (or similar fossilized rugose/tabulate coral)) — fossil

Fossil Coral (Petoskey Stone / Rugose Coral)

Hexagonaria percarinata (or similar fossilized rugose/tabulate coral)

Red Jasper (Silicon dioxide (Microcrystalline Quartz, $SiO_2$)) — sedimentary

Red Jasper

Silicon dioxide (Microcrystalline Quartz, $SiO_2$)

Citrine (Silicon Dioxide (Quartz variety), SiO2) — mineral

Citrine

Silicon Dioxide (Quartz variety), SiO2

Quartz Crystal (Silicon Dioxide (SiO2)) — mineral

Quartz Crystal

Silicon Dioxide (SiO2)

Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

Quartz pebble (Quartz (SiO2)) — sedimentary

Quartz pebble

Quartz (SiO2)

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

Quartz with Inclusions (Silicon Dioxide (SiO2)) — mineral

Quartz with Inclusions

Silicon Dioxide (SiO2)

Yellow Quartz (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz

Silicon Dioxide (SiO2)

Almandine Garnet (Almandine (Fe3Al2(SiO4)3)) — mineral

Almandine Garnet

Almandine (Fe3Al2(SiO4)3)

Pyrite Nodules / Weathered Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite Nodules / Weathered Pyrite

Iron Sulfide (FeS2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Jasper with Quartz Vein (Microcrystalline quartz (SiO2) with impurities) — sedimentary

Jasper with Quartz Vein

Microcrystalline quartz (SiO2) with impurities

Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

Granite (Intrusive Igneous Rock) — igneous

Granite

Intrusive Igneous Rock

Unakite (Altered Granite (Epidotized Granite)) — metamorphic

Unakite

Altered Granite (Epidotized Granite)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Quartz pebble (Silicon dioxide (SiO2)) — sedimentary

Quartz pebble

Silicon dioxide (SiO2)

Pebbles (Polymictic rock fragments) — sedimentary

Pebbles

Polymictic rock fragments

Granite (Intrusive Igneous Rock) — igneous

Granite

Intrusive Igneous Rock

Quartz Crystal (Silicon Dioxide (SiO2)) — mineral

Quartz Crystal

Silicon Dioxide (SiO2)

Quartz pebble (Silicon dioxide (SiO2)) — sedimentary

Quartz pebble

Silicon dioxide (SiO2)

Marble (Metamorphosed Limestone / Calcite or Dolomite) — metamorphic

Marble

Metamorphosed Limestone / Calcite or Dolomite

Granite Pebble (Granite) — igneous

Granite Pebble

Granite

White Quartz (Silicon Dioxide (SiO2)) — mineral

White Quartz

Silicon Dioxide (SiO2)

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

Jasper

Silicon Dioxide (SiO2) microcrystalline quartz

Granite (Felsic intrusive igneous rock) — igneous

Granite

Felsic intrusive igneous rock

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Granite (Felsic intrusive igneous rock) — igneous

Granite

Felsic intrusive igneous rock

Quartzite (Metamorphosed quartz sandstone (SiO2)) — metamorphic

Quartzite

Metamorphosed quartz sandstone (SiO2)

Basalt (Basalt) — igneous

Basalt

Basalt

Quartz Pebble (Silicon Dioxide (SiO2)) — sedimentary

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Jasper (Silicon Dioxide (Microcrystalline Quartz)) — sedimentary

Jasper

Silicon Dioxide (Microcrystalline Quartz)

Sandstone (Sedimentary Rock (Quartz arenite or arkose)) — sedimentary

Sandstone

Sedimentary Rock (Quartz arenite or arkose)

Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

Granite (Intrusive Igneous Rock (Felsic)) — igneous

Granite

Intrusive Igneous Rock (Felsic)

Granite (Felsic intrusive igneous rock) — igneous

Granite

Felsic intrusive igneous rock

Quartz with Inclusions (Silicon Dioxide (SiO2)) — mineral

Quartz with Inclusions

Silicon Dioxide (SiO2)