Rock Identifier

Category

Mineral In Igneous Rock

Browse mineral in igneous rock specimens identified by the Rock Identifier community.

Granite (Granite (phaneritic felsic intrusive rock)) — igneous

Granite

Granite (phaneritic felsic intrusive rock)

igneous
Snowflake Obsidian (Obsidian with Cristobalite inclusions (70–75% SiO2)) — igneous

Snowflake Obsidian

Obsidian with Cristobalite inclusions (70–75% SiO2)

igneous
Obsidian (Volcanic Glass (70-75% SiO2)) — igneous

Obsidian

Volcanic Glass (70-75% SiO2)

igneous
Snowflake Obsidian (Volcanic glass with Phenocrysts (SiO2 with Cristobalite inclusions)) — igneous

Snowflake Obsidian

Volcanic glass with Phenocrysts (SiO2 with Cristobalite inclusions)

igneous
Green Aventurine (likely) (Silicon dioxide (SiO2) with fuchsitemica inclusions) — Mineral (specifically a variety of Quartz)

Green Aventurine (likely)

Silicon dioxide (SiO2) with fuchsitemica inclusions

Mineral (specifically a variety of Quartz)
Quartz (Smoky/Milky variety) (Silicon Dioxide (SiO2)) — mineral

Quartz (Smoky/Milky variety)

Silicon Dioxide (SiO2)

mineral
Bauxite (Bauxite (Mixture of Hydrous Aluminum Oxides)) — sedimentary

Bauxite

Bauxite (Mixture of Hydrous Aluminum Oxides)

sedimentary
Pumice (Pumicite (Volcanic glass with vesicular texture)) — igneous

Pumice

Pumicite (Volcanic glass with vesicular texture)

igneous
Pumice (Pumiceous rhyolite) — igneous

Pumice

Pumiceous rhyolite

igneous
Scoria (Scoria (Vesicular Basalt)) — igneous

Scoria

Scoria (Vesicular Basalt)

igneous
Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

mineral
Yellow Quartz (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz

Silicon Dioxide (SiO2)

mineral
Quartz (Silicon Dioxide (SiO2)) — Mineral

Quartz

Silicon Dioxide (SiO2)

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

Milky Quartz

Silicon Dioxide (SiO2)

mineral
Hypersthene ((Mg,Fe)SiO3 - Enstatite-Ferrosilite series) — mineral

Hypersthene

(Mg,Fe)SiO3 - Enstatite-Ferrosilite series

mineral
Fossilized Dinosaur Skull (Tyrannosaurus rex) (Tyrannosaurus rex (permineralized fossil), rich in Hydroxylapatite/Silica) — sedimentary

Fossilized Dinosaur Skull (Tyrannosaurus rex)

Tyrannosaurus rex (permineralized fossil), rich in Hydroxylapatite/Silica

sedimentary
Pyrite (Pyrite (FeS2)) — Mineral

Pyrite

Pyrite (FeS2)

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

Quartz Pebble

Silicon Dioxide (SiO2)

mineral
Quartz Geode (Silicon Dioxide (SiO2)) — mineral

Quartz Geode

Silicon Dioxide (SiO2)

mineral
Basalt (Basalt (Mafic volcanic rock)) — igneous

Basalt

Basalt (Mafic volcanic rock)

igneous
Olivine Peridotite (Peridotite (comprising Olivine (Mg,Fe)2SiO4 and Pyroxene)) — igneous

Olivine Peridotite

Peridotite (comprising Olivine (Mg,Fe)2SiO4 and Pyroxene)

igneous
Granite (Granite (Mainly Quartz, Alkali Feldspar, and Plagioclase)) — igneous

Granite

Granite (Mainly Quartz, Alkali Feldspar, and Plagioclase)

igneous
Basalt (Vesicular) (Basalt (mostly plagioclase, pyroxene, and olivine)) — igneous

Basalt (Vesicular)

Basalt (mostly plagioclase, pyroxene, and olivine)

igneous
Andesite (Andesite (Intermediate Volcanic Rock)) — igneous

Andesite

Andesite (Intermediate Volcanic Rock)

igneous
Scoria (Lava Rock) (Extrusive Igneous Scoria (Vesicular Basalt)) — igneous

Scoria (Lava Rock)

Extrusive Igneous Scoria (Vesicular Basalt)

igneous
Basalt (Basalt (Mafic Extrusive)) — igneous

Basalt

Basalt (Mafic Extrusive)

igneous
Basalt (Basalt) — igneous

Basalt

Basalt

igneous
Andesite (Andesite (Intermediate Volcanic Rock)) — igneous

Andesite

Andesite (Intermediate Volcanic Rock)

igneous
Basalt (Water-worn pebble) (Basalt (Aphanitic mafic volcanic rock)) — igneous

Basalt (Water-worn pebble)

Basalt (Aphanitic mafic volcanic rock)

igneous
Basalt River Pebble (Aphanitic Mafic Basalt) — igneous

Basalt River Pebble

Aphanitic Mafic Basalt

igneous
Basalt (Basalt (comprising plagioclase, pyroxene, and olivine)) — igneous

Basalt

Basalt (comprising plagioclase, pyroxene, and olivine)

igneous
Quartz (Silicon Dioxide (SiO2)) — Mineral

Quartz

Silicon Dioxide (SiO2)

Mineral
Quartz with Iron Stains (Quartz (SiO2) with iron oxide/hydroxide staining) — Mineral

Quartz with Iron Stains

Quartz (SiO2) with iron oxide/hydroxide staining

Mineral
Slickenside (Tectonic Fault Scarp Surface) — metamorphic

Slickenside

Tectonic Fault Scarp Surface

metamorphic
Quartz Vein in Host Rock (Hydrothermal Quartz (SiO2) in Slates/Schists) — metamorphic

Quartz Vein in Host Rock

Hydrothermal Quartz (SiO2) in Slates/Schists

metamorphic
Banded Sandstone (Arenite with Liesegang banding (primarily SiO2 with FeO(OH) impurities)) — sedimentary

Banded Sandstone

Arenite with Liesegang banding (primarily SiO2 with FeO(OH) impurities)

sedimentary
Septarian Nodule (Septarian Concretion (CaCO3 with Siderite/Limonite streaks)) — sedimentary

Septarian Nodule

Septarian Concretion (CaCO3 with Siderite/Limonite streaks)

sedimentary
Sodalite (Sodalite - Na8(Al6Si6O24)Cl2) — mineral

Sodalite

Sodalite - Na8(Al6Si6O24)Cl2

mineral
Sandstone (Arenite (SiO2 principal)) — sedimentary

Sandstone

Arenite (SiO2 principal)

sedimentary
Granite Pebble (Granite (composed mainly of Quartz, Feldspar, and Mica)) — igneous

Granite Pebble

Granite (composed mainly of Quartz, Feldspar, and Mica)

igneous
Granite Water-Worn Pebble (Granite (composed primarily of Quartz, Feldspar, and Mica)) — igneous

Granite Water-Worn Pebble

Granite (composed primarily of Quartz, Feldspar, and Mica)

igneous
Pink Granite (Granite (Alkali Feldspar Granite)) — igneous

Pink Granite

Granite (Alkali Feldspar Granite)

igneous