Rock Identifier

Category

Sedimentary And Igneous (Mixed)

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

Obsidian (Volcanic Glass (Amorphous SiO2)) — igneous

Obsidian

Volcanic Glass (Amorphous SiO2)

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

Granite with Mafic Inclusions

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

Diorite (Diorite (an intrusive igneous rock)) — igneous

Diorite

Diorite (an intrusive igneous rock)

Granite (Granite (composition: Quartz, Feldspar, Mica)) — igneous

Granite

Granite (composition: Quartz, Feldspar, Mica)

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

Granite

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

Mahogany Obsidian (Obsidian (Volcanic Glass) with Hematite/Magnetite inclusions) — igneous

Mahogany Obsidian

Obsidian (Volcanic Glass) with Hematite/Magnetite inclusions

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

Obsidian

Obsidian (Amorphous Volcanic Glass, SiO2)

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

Granite

Granite (Mainly Quartz, Alkali Feldspar, and Plagioclase)

Obsidian (Obsidian (Volcanic Glass)) — igneous

Obsidian

Obsidian (Volcanic Glass)

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

Obsidian

Volcanic Glass (SiO2 + impurities)

K2 Jasper (K2 Granite) (Azurite in Granite (K(Mg,Fe)3AlSi3O10(OH,F)2 + Cu3(CO3)2(OH)2)) — igneous

K2 Jasper (K2 Granite)

Azurite in Granite (K(Mg,Fe)3AlSi3O10(OH,F)2 + Cu3(CO3)2(OH)2)

Basalt (River Stone/Pebble) (Basalt (Extrusive Igneous Rock)) — igneous

Basalt (River Stone/Pebble)

Basalt (Extrusive Igneous Rock)

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

Diorite

Diorite (Intermediate intrusive igneous rock)

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

Diabase

Diabase (also known as Dolerite)

Diorite (Polished Tumble) (Diorite (Intermediate intrusive igneous rock)) — Igneous

Diorite (Polished Tumble)

Diorite (Intermediate intrusive igneous rock)

Labradorite (Larvikite variety) (Plagioclase Feldspar (Na,Ca)(Al,Si)4O8 with Monzonite/Syenite matrix) — igneous

Labradorite (Larvikite variety)

Plagioclase Feldspar (Na,Ca)(Al,Si)4O8 with Monzonite/Syenite matrix

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

Basalt

Basalt (composition predominately Plagioclase feldspar and Pyroxene)

Granatic Pegmatite (Pegmatitic Granite) — igneous

Granatic Pegmatite

Pegmatitic Granite

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

Pumice

Pumice (a highly vesicular volcanic rock)

Pumice (Pumice (Vesicular volcanic glass)) — igneous

Pumice

Pumice (Vesicular volcanic glass)

Scoria (Lava Rock) (Scoria (Vesicular Basaltic Glass/Rock)) — igneous

Scoria (Lava Rock)

Scoria (Vesicular Basaltic Glass/Rock)

Indigo Gabbro (Gabbro (Mafic Intrusive Rock)) — igneous

Indigo Gabbro

Gabbro (Mafic Intrusive Rock)

Granite (Granite) — igneous

Granite

Granite

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

Pumice

Pumice (a highly vesicular, silicic volcanic rock)

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

Scoria (Lava Rock)

Extrusive Igneous Scoria (Vesicular Basalt)

Ocean Jasper (Orbicular Jasper) (Orbicular Rhyolite (SiO2)) — igneous

Ocean Jasper (Orbicular Jasper)

Orbicular Rhyolite (SiO2)

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

Pumice

Pumice (a highly vesicular felsic volcanic rock)

Pink Granite (Phaneritic intrusive felsic igneous rock) — igneous

Pink Granite

Phaneritic intrusive felsic igneous rock

Pumice (Pumice (volcanic glass froth)) — igneous

Pumice

Pumice (volcanic glass froth)

Rhyolite (Rhyolite (Extrusive Igneous Rock)) — igneous

Rhyolite

Rhyolite (Extrusive Igneous Rock)

Scoria (Vesicular Basalt / Scoria (Mafic volcanic rock)) — igneous

Scoria

Vesicular Basalt / Scoria (Mafic volcanic rock)

Obsidian (Volcanic Glass (SiO2 + minor impurities)) — igneous

Obsidian

Volcanic Glass (SiO2 + minor impurities)

Mahogany Obsidian (Volcanic glass (SiO2 with Hematite or Magnetite inclusions)) — igneous

Mahogany Obsidian

Volcanic glass (SiO2 with Hematite or Magnetite inclusions)

Obsidian (Obsidian (principally SiO2 + MgO, Fe3O4)) — igneous

Obsidian

Obsidian (principally SiO2 + MgO, Fe3O4)

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

Obsidian

Obsidian (Volcanic Glass), primarily SiO2

Quartz Vein Rock (Quartz (Silicon Dioxide, SiO2)) — igneous

Quartz Vein Rock

Quartz (Silicon Dioxide, SiO2)

Obsidian (Volcanic Glass (Primary composition: SiO2 - Silicon Dioxide)) — igneous

Obsidian

Volcanic Glass (Primary composition: SiO2 - Silicon Dioxide)

Pumice (Pumice (Vesicular Rhyolite/Andesite)) — igneous

Pumice

Pumice (Vesicular Rhyolite/Andesite)

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

Granite Pebble (River Rock)

Phaneritic Felsic Igneous Rock

Pumice (Vesicular volcanic glass) — igneous

Pumice

Vesicular volcanic glass

Pumice (Pumice (volcanic glass with vesicular texture)) — igneous

Pumice

Pumice (volcanic glass with vesicular texture)

Peridotite (Peridotite (Ultramafic Rock)) — igneous

Peridotite

Peridotite (Ultramafic Rock)