Rock Identifier

Category

Igneous

Browse igneous specimens identified by the Rock Identifier community.

Amethyst (Rough) (Silicon Dioxide with iron impurities (SiO2)) — mineral

Amethyst (Rough)

Silicon Dioxide with iron impurities (SiO2)

Moonstone with Black Tourmaline (Orthoclase (KAlSi3O8) with Schorl inclusions) — mineral

Moonstone with Black Tourmaline

Orthoclase (KAlSi3O8) with Schorl inclusions

Biotite Mica (Biotite (K(Mg,Fe)3AlSi3O10(OH,F)2)) — mineral

Biotite Mica

Biotite (K(Mg,Fe)3AlSi3O10(OH,F)2)

Morganite (Pink Beryl) (Beryllium aluminum silicate Be3Al2(SiO3)6) — mineral

Morganite (Pink Beryl)

Beryllium aluminum silicate Be3Al2(SiO3)6

Orthoclase Feldspar (KAlSi3O8 (Potassium Aluminum Silicate)) — mineral

Orthoclase Feldspar

KAlSi3O8 (Potassium Aluminum Silicate)

Purple Lepidolite with Quartz (Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)) — mineral

Purple Lepidolite with Quartz

Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)

Gneiss (Gneiss (High-grade metamorphic rock)) — metamorphic

Gneiss

Gneiss (High-grade metamorphic rock)

Pyrite (Fool's Gold) Cube (Iron Sulfide (FeS2)) — mineral

Pyrite (Fool's Gold) Cube

Iron Sulfide (FeS2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

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

Quartz (Citrine or Iron-Stained) (Silicon Dioxide (SiO2)) — mineral

Quartz (Citrine or Iron-Stained)

Silicon Dioxide (SiO2)

Pyrite (Fool's Gold) (Iron Sulfide (FeS2)) — mineral

Pyrite (Fool's Gold)

Iron Sulfide (FeS2)

Lavender Quartz (appearing as beads) and Druzy Quartz (Silicon Dioxide (SiO2)) — mineral

Lavender Quartz (appearing as beads) and Druzy Quartz

Silicon Dioxide (SiO2)

Sodalite (Sodalite [Na8(Al6Si6O24)Cl2]) — mineral

Sodalite

Sodalite [Na8(Al6Si6O24)Cl2]

Rose Quartz (Silicon dioxide (SiO2) with trace titanium, manganese, or iron) — mineral

Rose Quartz

Silicon dioxide (SiO2) with trace titanium, manganese, or iron

Jasper in Basalt Matrix (Silicon Dioxide (SiO2) with impurities; Chalcedony) — sedimentary (secondary mineral) within igneous

Jasper in Basalt Matrix

Silicon Dioxide (SiO2) with impurities; Chalcedony

sedimentary (secondary mineral) within igneous

Milky Quartz (Quartz (Silicon Dioxide, SiO2)) — mineral

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Milky Quartz (Quartz (Silicon Dioxide, SiO2)) — mineral

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Granite (Granite (a felsic intrusive igneous rock composed primarily of quartz, feldspar, and mica)) — igneous

Granite

Granite (a felsic intrusive igneous rock composed primarily of quartz, feldspar, and mica)

Granite Cobble/Pebble (Granite) — Igneous

Granite Cobble/Pebble

Granite

Milky Quartz (Quartz (Silicon Dioxide, SiO2)) — mineral

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Granite River Pebble (Phaneritic Felsic Igneous Rock (Granite)) — igneous

Granite River Pebble

Phaneritic Felsic Igneous Rock (Granite)

Basalt (Basalt (Mafic Extrusive Igneous Rock)) — igneous

Basalt

Basalt (Mafic Extrusive Igneous Rock)

Pink Granite (Phaneritic Felsic Igneous Plutonic Rock) — igneous

Pink Granite

Phaneritic Felsic Igneous Plutonic Rock

Pink Granite (Phaneritic intrusive igneous rock (Felsic)) — igneous

Pink Granite

Phaneritic intrusive igneous rock (Felsic)

Diorite (Diorite (Intermediate intrusive igneous rock)) — igneous

Diorite

Diorite (Intermediate intrusive igneous rock)

Diorite (Diorite (intermediate intrusive igneous rock)) — igneous

Diorite

Diorite (intermediate intrusive igneous rock)

Granite (Granite (Phaneritic Acidic Igneous Rock)) — igneous

Granite

Granite (Phaneritic Acidic Igneous Rock)

Granite (Phaneritic Felsic Igneous Rock (Granite)) — igneous

Granite

Phaneritic Felsic Igneous Rock (Granite)

Basalt (with possible weathering or secondary mineral crust) (Basalt (Aphanitic Mafic Igneous Rock)) — Igneous

Basalt (with possible weathering or secondary mineral crust)

Basalt (Aphanitic Mafic Igneous Rock)

Pink Granite (Crystalline Granite) (Igneous Intrusive Rock (Felsic Plutonic)) — igneous

Pink Granite (Crystalline Granite)

Igneous Intrusive Rock (Felsic Plutonic)

Diorite (River Rock/Cobble) (Intermediate Plutonic Igneous Rock (Diorite)) — igneous

Diorite (River Rock/Cobble)

Intermediate Plutonic Igneous Rock (Diorite)

Granite (Intrusive Phaneritic Felsic Igneous Rock) — igneous

Granite

Intrusive Phaneritic Felsic Igneous Rock

Granite (Granite (Phaneritic intrusive igneous rock)) — Igneous

Granite

Granite (Phaneritic intrusive igneous rock)

Basalt with Quartz Vein (Mafic Igneous Rock (SiO2 filling)) — igneous

Basalt with Quartz Vein

Mafic Igneous Rock (SiO2 filling)

Diorite (Diorite (Intermediate intrusive igneous rock)) — igneous

Diorite

Diorite (Intermediate intrusive igneous rock)

Basalt (with possible mineral veining) (Basalt (Aphanitic Mafic Igneous Rock)) — Igneous

Basalt (with possible mineral veining)

Basalt (Aphanitic Mafic Igneous Rock)

Vesicular Basalt with Amygdaloidal Infill (Basalt (Mafic Extrusive Igneous Rock)) — igneous

Vesicular Basalt with Amygdaloidal Infill

Basalt (Mafic Extrusive Igneous Rock)

Basalt (Basalt (Aphanitic Mafic Igneous Rock)) — igneous

Basalt

Basalt (Aphanitic Mafic Igneous Rock)

Basalt with Weathered Rind (Basalt (Aphanitic Mafic Igneous Rock)) — igneous

Basalt with Weathered Rind

Basalt (Aphanitic Mafic Igneous Rock)

Granodiorite (Granodiorite (Intermediate intrusive igneous rock)) — igneous

Granodiorite

Granodiorite (Intermediate intrusive igneous rock)

Venetian Gold Granite (Phaneritic Felsic Igneous Rock (Granite)) — igneous

Venetian Gold Granite

Phaneritic Felsic Igneous Rock (Granite)