Rock Identifier

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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

Granite (Intrusive Igneous Rock) — igneous

Granite

Intrusive Igneous Rock

Granite (Intrusive Igneous Rock) — igneous

Granite

Intrusive Igneous Rock

Pumice (Pumice (Volcanic Rock / Glass Froth)) — igneous

Pumice

Pumice (Volcanic Rock / Glass Froth)

Rhodonite ((Mn,Fe,Mg,Ca)SiO3) — mineral

Rhodonite

(Mn,Fe,Mg,Ca)SiO3

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

Rose Quartz

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

Rose Quartz (Silicon Dioxide (SiO2)) — mineral

Rose Quartz

Silicon Dioxide (SiO2)

Lapis Lazuli (Lapis Lazuli (Rock composed primarily of lazurite, calcite, and pyrite)) — metamorphic

Lapis Lazuli

Lapis Lazuli (Rock composed primarily of lazurite, calcite, and pyrite)

Dragon Blood Jasper (Microcrystalline Quartz (Chalcedony) with Epidote and Piemontite) — sedimentary

Dragon Blood Jasper

Microcrystalline Quartz (Chalcedony) with Epidote and Piemontite

Chrysanthemum Stone (Limestone with Celestite or Andalusite inclusions) — sedimentary

Chrysanthemum Stone

Limestone with Celestite or Andalusite inclusions

Moss Agate (SiO2 (Cryptocrystalline Quartz)) — gemstone

Moss Agate

SiO2 (Cryptocrystalline Quartz)

Conglomerate (Polymictic Conglomerate) — sedimentary

Conglomerate

Polymictic Conglomerate

Green Fluorite (Calcium Fluoride (CaF2)) — mineral

Green Fluorite

Calcium Fluoride (CaF2)

Blue Calcite (Calcite (Calcium Carbonate, CaCO3)) — mineral

Blue Calcite

Calcite (Calcium Carbonate, CaCO3)

Quartz with Celadonite Inclusion (Silicon Dioxide (SiO2) with green clay mineral inclusions) — mineral

Quartz with Celadonite Inclusion

Silicon Dioxide (SiO2) with green clay mineral inclusions

Blue Calcite (Calcium Carbonate (CaCO3)) — mineral

Blue Calcite

Calcium Carbonate (CaCO3)

Quartz Veined Quartzite or Sandstone (Quartzite with Quartz Veins (SiO2)) — sedimentary

Quartz Veined Quartzite or Sandstone

Quartzite with Quartz Veins (SiO2)

Granite (Felsic intrusive igneous rock) — igneous

Granite

Felsic intrusive igneous rock

Fluorite (Calcium Fluoride (CaF2)) — mineral

Fluorite

Calcium Fluoride (CaF2)

Quartz-Veined Gneiss or Metamorphic Rock with Quartz Veins (Quartz-veined metamorphic rock (Silicate mineral assemblage)) — metamorphic

Quartz-Veined Gneiss or Metamorphic Rock with Quartz Veins

Quartz-veined metamorphic rock (Silicate mineral assemblage)

Quartz-veined Metamorphic Rock (Quartz-veined Schist or Gneiss) — metamorphic

Quartz-veined Metamorphic Rock

Quartz-veined Schist or Gneiss

Quartzite Pebble (Metamorphosed Quartz Sandstone (SiO2)) — metamorphic

Quartzite Pebble

Metamorphosed Quartz Sandstone (SiO2)

Porphyritic Basalt or Porphyritic Andesite (Porphyritic volcanic rock) — igneous

Porphyritic Basalt or Porphyritic Andesite

Porphyritic volcanic rock

Banded Gneiss (Gneiss) — metamorphic

Banded Gneiss

Gneiss

Red Quartzite (Quartzite (SiO2)) — metamorphic

Red Quartzite

Quartzite (SiO2)

Conglomerate (Greenstone/Pebble Conglomerate) (Polymictic Conglomerate) — sedimentary

Conglomerate (Greenstone/Pebble Conglomerate)

Polymictic Conglomerate

Granite Pegmatite (Pegmatite (Fulgite / Felsic Intrusive Rock)) — igneous

Granite Pegmatite

Pegmatite (Fulgite / Felsic Intrusive Rock)

Quartzite with Epidote Vein (Metamorphosed Quartz Sandstone with Hydrothermal Vein) — metamorphic

Quartzite with Epidote Vein

Metamorphosed Quartz Sandstone with Hydrothermal Vein

Moonstone (Orthoclase feldspar, (K,Na)AlSi3O8) — gemstone

Moonstone

Orthoclase feldspar, (K,Na)AlSi3O8

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

Porphyritic Basalt or Porphyritic Andesite

Porphyritic Igneous Rock

Red Jasper (Microcrystalline Quartz (Chalcedony), SiO2) — sedimentary

Red Jasper

Microcrystalline Quartz (Chalcedony), SiO2

Bumblebee Jasper (Fibrous Calcite and Orpiment/Realgar/Pyrite mix) — gemstone

Bumblebee Jasper

Fibrous Calcite and Orpiment/Realgar/Pyrite mix

Dalmatian Jasper (Microcrystalline Quartz with Arfvedsonite and Tourmaline inclusions) — igneous

Dalmatian Jasper

Microcrystalline Quartz with Arfvedsonite and Tourmaline inclusions

Carnelian (Silicon Dioxide, variety of chalcedony (SiO2)) — gemstone

Carnelian

Silicon Dioxide, variety of chalcedony (SiO2)

Black Onyx (Chalcedony (SiO2)) — gemstone

Black Onyx

Chalcedony (SiO2)

Black Onyx (Chalcedony (SiO2)) — gemstone

Black Onyx

Chalcedony (SiO2)

Quartzite (Quartzite (Metamorphic Quartz Sandstone)) — metamorphic

Quartzite

Quartzite (Metamorphic Quartz Sandstone)

Porphyritic Basalt (Porphyritic Extrusive Igneous Rock) — igneous

Porphyritic Basalt

Porphyritic Extrusive Igneous Rock

Labradorite (Plagioclase Feldspar (Na,Ca)(Al,Si)4O8) — mineral

Labradorite

Plagioclase Feldspar (Na,Ca)(Al,Si)4O8

Jasper (Silicon Dioxide (Microcrystalline Quartz / Chalcedony)) — sedimentary

Jasper

Silicon Dioxide (Microcrystalline Quartz / Chalcedony)

Lapis Lazuli (Complex silicate rock containing lazurite, calcite, and pyrite) — gemstone

Lapis Lazuli

Complex silicate rock containing lazurite, calcite, and pyrite

Fossiliferous Limestone (Biogenic Sedimentary Rock (primarily CaCO3)) — sedimentary

Fossiliferous Limestone

Biogenic Sedimentary Rock (primarily CaCO3)

Porphyritic Igneous Rock / Porphyry (Porphyry (Plagioclase/Quartz phenocrysts in a finer-grained groundmass)) — igneous

Porphyritic Igneous Rock / Porphyry

Porphyry (Plagioclase/Quartz phenocrysts in a finer-grained groundmass)