Rock Identifier

Category

Sedimentary And Igneous (Mixed)

Browse sedimentary and igneous (mixed) specimens identified by the Rock Identifier community.

Obsidian (Obsidian (Volcanic Glass)) — igneous

Obsidian

Obsidian (Volcanic Glass)

Basalt Column Section (Columnar Basalt (Mafic Extrusive Igneous Rock)) — igneous

Basalt Column Section

Columnar Basalt (Mafic Extrusive Igneous Rock)

Pink Granite (River Pebble) (Felsic Intrusive Igneous Rock) — igneous

Pink Granite (River Pebble)

Felsic Intrusive Igneous Rock

Basalt (Mafic Igneous Rock (primarily Plagioclase and Pyroxene)) — igneous

Basalt

Mafic Igneous Rock (primarily Plagioclase and Pyroxene)

Granite (Granite (composed of Quartz, Alkali Feldspar, and Plagioclase)) — igneous

Granite

Granite (composed of Quartz, Alkali Feldspar, and Plagioclase)

Basalt (Extrusive mafic igneous rock) — igneous

Basalt

Extrusive mafic igneous rock

Gold Sheen Obsidian (Obsidian (volcanic glass with SiO2 + gas inclusions)) — igneous

Gold Sheen Obsidian

Obsidian (volcanic glass with SiO2 + gas inclusions)

Pink Granite (Gneissic transition) (Pink Biotite Granite) — igneous

Pink Granite (Gneissic transition)

Pink Biotite Granite

Pumice (Pumice (Vitreous volcanic rock)) — igneous

Pumice

Pumice (Vitreous volcanic rock)

Pumice (Pumice (a highly vesicular extrusive igneous rock)) — igneous

Pumice

Pumice (a highly vesicular extrusive igneous rock)

Porphyritic Basalt or Andesite (Porphyritic Basalt / Andesite) — Igneous

Porphyritic Basalt or Andesite

Porphyritic Basalt / Andesite

Stream Pebble (Basalt/Greywacke) (Mafic Igneous Rock (Fine-grained)) — igneous

Stream Pebble (Basalt/Greywacke)

Mafic Igneous Rock (Fine-grained)

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

Granite Cobble

Granite (Phaneritic Igneous Rock)

Basalt (Basalt (composition predominately plagioclase feldspar and pyroxene)) — igneous

Basalt

Basalt (composition predominately plagioclase feldspar and pyroxene)

Pumice (Pumice (Vitreous pyroclastic rock)) — igneous

Pumice

Pumice (Vitreous pyroclastic rock)

Scoria (Lava Rock) (Scoria) — igneous

Scoria (Lava Rock)

Scoria

Granite (Phaneritic Plutonic Felsic Rock) — igneous

Granite

Phaneritic Plutonic Felsic Rock

Granite (Granite (Phaneritic Igneous Rock)) — igneous

Granite

Granite (Phaneritic Igneous Rock)

Vesicular Basalt (Aphanitic Mafic Igneous Rock (with Vesicular Texture)) — igneous

Vesicular Basalt

Aphanitic Mafic Igneous Rock (with Vesicular Texture)

Basalt (Mafic volcanic rock (various silicate minerals including Pyroxene and Plagioclase)) — igneous

Basalt

Mafic volcanic rock (various silicate minerals including Pyroxene and Plagioclase)

Granite (Granite (Felsic Plutonic Rock)) — igneous

Granite

Granite (Felsic Plutonic Rock)

Granite (Granite) — igneous

Granite

Granite

Granite (Granite (Felsic Plutonic Rock)) — igneous

Granite

Granite (Felsic Plutonic Rock)

Basalt (Basalt (dominated by Plagioclase Feldspar and Pyroxene)) — igneous

Basalt

Basalt (dominated by Plagioclase Feldspar and Pyroxene)

Diorite (Salt and Pepper Rock) (Diorite) — igneous

Diorite (Salt and Pepper Rock)

Diorite

Basalt (Basalt (composition of Plagioclase feldspar and Pyroxene)) — igneous

Basalt

Basalt (composition of Plagioclase feldspar and Pyroxene)

Basalt (Basalt) — igneous

Basalt

Basalt

Granite (Granite (Phaneritic igneous rock composed of Quartz, Feldspar, and Mica)) — igneous

Granite

Granite (Phaneritic igneous rock composed of Quartz, Feldspar, and Mica)

Gabbro (Gabbro) — igneous

Gabbro

Gabbro

Granite (Felsic intrusive igneous rock) — igneous

Granite

Felsic intrusive igneous rock

Diabase (Diabase (also known as Dolerite)) — igneous

Diabase

Diabase (also known as Dolerite)

Granite (Granite (Phaneritic Quartz-Feldspar rock)) — igneous

Granite

Granite (Phaneritic Quartz-Feldspar rock)

Granite (Granite (composed primarily of Quartz SiO2, Potassium Feldspar KAlSi3O8, and Plagioclase)) — Igneous

Granite

Granite (composed primarily of Quartz SiO2, Potassium Feldspar KAlSi3O8, and Plagioclase)

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

Granite

Granite (Felsic intrusive igneous rock)

Basalt (Basalt) — igneous

Basalt

Basalt

Pegmatite (with smoky quartz and tourmaline/biotite) (Pegmatitic Granite) — igneous

Pegmatite (with smoky quartz and tourmaline/biotite)

Pegmatitic Granite

Granite (Phaneritic Igneous Rock (primarily Quartz, Feldspar, and Mica)) — igneous

Granite

Phaneritic Igneous Rock (primarily Quartz, Feldspar, and Mica)

Diorite (Intermediate plutonic igneous rock) — igneous

Diorite

Intermediate plutonic igneous rock

Granite (Granite) — igneous

Granite

Granite

Basalt (Mafic volcanic rock (primarily plagioclase feldspar and pyroxene)) — igneous

Basalt

Mafic volcanic rock (primarily plagioclase feldspar and pyroxene)

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

Basalt

Basalt (Mafic Extrusive Igneous Rock)

Scoria (Red Lava Rock) (Scoria) — igneous

Scoria (Red Lava Rock)

Scoria