Mineral In Igneous Rock

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

Vesicular Basalt (Scoria)

Extrusive Mafic Igneous Rock (primarily Plagioclase Feldspar and Pyroxene)

igneous

Basalt (with possible weathering or secondary mineral crust)

Basalt (Aphanitic Mafic Igneous Rock)

Igneous

Granodiorite

Granodiorite (calc-alkaline phaneritic igneous rock)

igneous

Dalmatian Stone

Dalmatian Jasper / Feldspathic Igneous Rock

igneous

Garnet Gneiss

Gneiss containing almandine-pyrope garnet

metamorphic

Amygdaloidal Basalt

Igneous

Granitic Gneiss

Gneiss (Metamorphic Rock)

metamorphic

Granite

Igneous

Black Obsidian

Obsidian (Volcanic Glass), primarily SiO2 (Silicon Dioxide)

igneous

Granite

Granite (Felsic intrusive igneous rock)

igneous

Smoky Quartz Cluster

Smoky Quartz (Silicon Dioxide - SiO2)

mineral

Smoky Quartz

Silicon Dioxide (SiO2)

mineral

Smoky Quartz

Silicon Dioxide (SiO2)

mineral

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

mineral

Granitic Pegmatite

Granite Pegmatite (coarse-grained intrusive igneous rock)

igneous

Blue Apatite

Apatite group (Ca5(PO4)3(F,Cl,OH))

mineral

Granite

Phaneritic Felsic Igneous Rock

igneous

Basalt

Basalt (Aphanitic Mafic Igneous Rock)

igneous

Granite Pebble

Granite (Phaneritic intrusive igneous rock)

igneous

Amygdaloidal Basalt

igneous

Granite

Granite (Phaneritic intrusive igneous rock)

Igneous

Clear Quartz (Rock Crystal)

Quartz (Silicon Dioxide, SiO2)

mineral

Diorite with Xenolith

Intermediate Plutonic Igneous Rock (Diorite)

igneous

Lapis Lazuli

Na8(Al6Si6O24)S2 (Lazurite is the primary constituent mineral)

metamorphic

Gneiss

Gneiss (High-grade Metamorphic Rock)

metamorphic

Basalt with vesicles (Amygdaloidal Basalt)

Amygdaloidal Basalt (predominantly Plagioclase and Pyroxene)

igneous

River Rocks (Basalt and Sedimentary Stones)

Mafic Igneous Rock (Basalt) and Clastic Sedimentary Rock

igneous and sedimentary

Amygdaloidal Basalt

Amygdaloidal Basalt containing Zeolite or Quartz (SiO2/Silicates)

igneous

Pebble (likely a type of sandstone or quartzite pebble)

Clastic Sediment (specifically, a rudite-sized clast). If the pebble is composed of a specific rock type, its scientific name would be that rock type (e.g., 'Quartzite pebble', 'Granite pebble', 'Chert pebble'). Given its appearance, it is likely a metamorphic quartzite pebble or a hard sandstone pebble.

Sedimentary rock