Rock Identifier

Category

Igneous And Sedimentary Mixture

Browse igneous and sedimentary mixture specimens identified by the Rock Identifier community.

Obsidian (Obsidian (Volcanic Glass, SiO2 + oxide impurities)) — igneous

Obsidian

Obsidian (Volcanic Glass, SiO2 + oxide impurities)

Diorite (Diorite) — igneous

Diorite

Diorite

Obsidian (Amorphous Volcanic Glass (primarily SiO2)) — igneous

Obsidian

Amorphous Volcanic Glass (primarily SiO2)

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

Basalt

Mafic volcanic rock (primarily plagioclase feldspar and pyroxene)

Granite (Granite) — igneous

Granite

Granite

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

Diabase (also known as Dolerite)

Diabase

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

Basalt

Basalt (Aphanitic Mafic Igneous Rock)

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

Basalt

Basalt (Aphanitic Mafic Volcanic Rock)

Pumice (Pumicite) — igneous

Pumice

Pumicite

Graphic Granite (Pegmatitic Granite (Quartz and Microcline KAlSi3O8)) — igneous

Graphic Granite

Pegmatitic Granite (Quartz and Microcline KAlSi3O8)

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

Diorite

Diorite (Intermediate intrusive igneous rock)

Granite (Phaneritic Plutonic Igneous Rock (Rich in SiO2)) — igneous

Granite

Phaneritic Plutonic Igneous Rock (Rich in SiO2)

Granodiorite (containing Biotite and Quartz) (Granodiorite (Plagioclase-rich phaneritic intrusive rock)) — igneous

Granodiorite (containing Biotite and Quartz)

Granodiorite (Plagioclase-rich phaneritic intrusive rock)

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

Pumice

Pumice (a highly vesicular volcanic rock)

Basalt (Mafic volcanic rock (formula varies by mineral content: Ca-plagioclase, Pyroxene, Olivine)) — igneous

Basalt

Mafic volcanic rock (formula varies by mineral content: Ca-plagioclase, Pyroxene, Olivine)

Granite (specifically Brown Granite Countertop) (Phaneritic Felsic Igneous Rock (Granite-Gabbro series)) — igneous

Granite (specifically Brown Granite Countertop)

Phaneritic Felsic Igneous Rock (Granite-Gabbro series)

Granite (Phaneritic Felsic Intrusive Rock) — igneous

Granite

Phaneritic Felsic Intrusive Rock

Diorite (Diorite) — igneous

Diorite

Diorite

Pumice (Vesicular volcanic glass) — igneous

Pumice

Vesicular volcanic glass

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

Basalt

Basalt (Aphanitic Mafic Igneous Rock)

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

Granite

Phaneritic Igneous Rock (composed of Quartz, Feldspar, and Mica)

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

Basalt with Weathered Rind

Basalt (Aphanitic Mafic Igneous Rock)

Granodiorite Pebble (Granodiorite) — igneous

Granodiorite Pebble

Granodiorite

Granite (Phaneritic Igneous Rock (composed primarily of Quartz, Alkali Feldspar, and Plagioclase)) — igneous

Granite

Phaneritic Igneous Rock (composed primarily of Quartz, Alkali Feldspar, and Plagioclase)

Basalt (Basalt (Aphanitic extrusive igneous rock)) — igneous

Basalt

Basalt (Aphanitic extrusive igneous rock)

Pumice (Vesicular volcanic glass (primarily Alumino-silicates)) — igneous

Pumice

Vesicular volcanic glass (primarily Alumino-silicates)

Granite Pebble (Granite (Phaneritic Quartz-Feldspar Rock)) — igneous

Granite Pebble

Granite (Phaneritic Quartz-Feldspar Rock)

Basalt with Porphyritic Texture (Porphyritic Basalt) — igneous

Basalt with Porphyritic Texture

Porphyritic Basalt

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

Basalt

Mafic Igneous Rock (primarily Plagioclase and Pyroxene)

Basalt (Mafic volcanic rock, primarily composed of Plagioclase, Pyroxene, and Olivine) — Igneous

Basalt

Mafic volcanic rock, primarily composed of Plagioclase, Pyroxene, and Olivine

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

Granite

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

Granite (Granite (Phaneritic Igneous Rock)) — igneous

Granite

Granite (Phaneritic Igneous Rock)

Basalt (Basalt (containing mainly Plagioclase feldspar and Pyroxene)) — igneous

Basalt

Basalt (containing mainly Plagioclase feldspar and Pyroxene)

Basalt River Pebble (Mafic volcanic rock (Basalt)) — igneous

Basalt River Pebble

Mafic volcanic rock (Basalt)

Basalt (Extrusive Mafic Igneous Rock (composed primarily of Plagioclase, Pyroxene, and Olivine)) — igneous

Basalt

Extrusive Mafic Igneous Rock (composed primarily of Plagioclase, Pyroxene, and Olivine)

Granite (Phaneritic Plutonic Felsic Rock (SiO2, KAlSi3O8, NaAlSi3O8, CaAl2Si2O8)) — igneous

Granite

Phaneritic Plutonic Felsic Rock (SiO2, KAlSi3O8, NaAlSi3O8, CaAl2Si2O8)

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

Basalt Pebble

Basalt (Extrusive Mafic Igneous)

Scoria (Lava Rock) (Vesicular Basalt / Scoria) — Igneous

Scoria (Lava Rock)

Vesicular Basalt / Scoria

Pink Granite (Granite (Phaneritic Quartz-Feldspar Rock)) — igneous

Pink Granite

Granite (Phaneritic Quartz-Feldspar Rock)

Pink Granite (Granite (Alkali-feldspar granite)) — igneous

Pink Granite

Granite (Alkali-feldspar granite)

Red Granite (Felsic Plutonic Rock (Granite)) — igneous

Red Granite

Felsic Plutonic Rock (Granite)

Scoria (Lava Rock) (Scoria (extrusive volcanic rock)) — igneous

Scoria (Lava Rock)

Scoria (extrusive volcanic rock)