Rock Identifier

Category

Igneous Or Metamorphic (Base Stone); Anthropogenic (Decoration)

Browse igneous or metamorphic (base stone); anthropogenic (decoration) specimens identified by the Rock Identifier community.

Learn about Igneous Or Metamorphic (Base Stone); Anthropogenic (Decoration) in the encyclopedia

Sard

Anthracite

Soapstone

Troctolite

Verdite

Cordierite Hornfels

Cordierite Hornfels

Migmatite

Dalmatian Jasper

Dalmatian Jasper

Jet

Lapis Lazuli

Apophyllite

Hornblende Schist

Hornblende Schist

Dalmatian Jasper (Peralkaline rhyolite with arfvedsonite inclusions) — igneous

Dalmatian Jasper

Peralkaline rhyolite with arfvedsonite inclusions

Granite (Granite (plutonic igneous rock composed mainly of quartz, K-feldspar, and plagioclase)) — igneous

Granite

Granite (plutonic igneous rock composed mainly of quartz, K-feldspar, and plagioclase)

Basalt (with Vesicles) (Mafic Volcanic Rock) — igneous

Basalt (with Vesicles)

Mafic Volcanic Rock

Basalt (Basalt) — igneous

Basalt

Basalt

Granodiorite (Granodiorite (Intermediate to Felsic Intrusive Rock)) — igneous

Granodiorite

Granodiorite (Intermediate to Felsic Intrusive Rock)

Basalt with Quartz/Plagioclase Inclusions (Mafic volcanic rock (Basaltic)) — igneous

Basalt with Quartz/Plagioclase Inclusions

Mafic volcanic rock (Basaltic)

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

Basalt

Basalt (Mafic Extrusive Igneous Rock)

Quartzite Pebble (Metamorphic Quartzite (primarily SiO2)) — metamorphic

Quartzite Pebble

Metamorphic Quartzite (primarily SiO2)

River Rock (Quartzite) (Quartzite (SiO2)) — metamorphic

River Rock (Quartzite)

Quartzite (SiO2)

Andesite River Stones (Andesite) — igneous

Andesite River Stones

Andesite

Amethyst (Quartz (Silicon Dioxide) with Iron impurities, SiO2) — mineral

Amethyst

Quartz (Silicon Dioxide) with Iron impurities, SiO2

Yellow Jasper (Silicon Dioxide (SiO2)) — sedimentary

Yellow Jasper

Silicon Dioxide (SiO2)

Feldspar-rich Quartzite (Metamorphic Quartz-Feldspar Aggregate (SiO2 + KAlSi3O8)) — metamorphic

Feldspar-rich Quartzite

Metamorphic Quartz-Feldspar Aggregate (SiO2 + KAlSi3O8)

Porphyritic Rhyolite (Rhyolite) — igneous

Porphyritic Rhyolite

Rhyolite

Basalt Pebble (Extrusive mafic igneous rock) — igneous

Basalt Pebble

Extrusive mafic igneous rock

Granite (Plutonic Igneous Rock (Granite)) — igneous

Granite

Plutonic Igneous Rock (Granite)

Granite (Felsic Intrusive Igneous Rock) — igneous

Granite

Felsic Intrusive Igneous Rock

Lavender Agate / Chalcedony Sphere (Agate (Microcrystalline Quartz) - SiO2) — mineral

Lavender Agate / Chalcedony Sphere

Agate (Microcrystalline Quartz) - SiO2

Rose Quartz (Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese) — mineral

Rose Quartz

Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese

Basalt with Iron Oxidation (Lattice/Veined) (Mafic Volcanic Rock (principally Plagioclase and Pyroxene)) — igneous

Basalt with Iron Oxidation (Lattice/Veined)

Mafic Volcanic Rock (principally Plagioclase and Pyroxene)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Serpentine Jade (New Jade/Olive Jade) (Serpentinite (a rock composed primarily of serpentine minerals) / Mg3Si2O5(OH)4 for Antigorite and Lizardite) — Mineral

Serpentine Jade (New Jade/Olive Jade)

Serpentinite (a rock composed primarily of serpentine minerals) / Mg3Si2O5(OH)4 for Antigorite and Lizardite

Basalt (Mafic extrusive igneous rock) — igneous

Basalt

Mafic extrusive igneous rock

Diorite (Phaneritic Intermediate Igneous Rock) — igneous

Diorite

Phaneritic Intermediate Igneous Rock

Obsidian (Volcanic Glass (predominantly SiO2)) — igneous

Obsidian

Volcanic Glass (predominantly SiO2)

Quartzite (Metamorphosed Quartz Sandstone (SiO2)) — metamorphic

Quartzite

Metamorphosed Quartz Sandstone (SiO2)

Quartzite with Chert inclusions (Metamorphosed Quartz-rich Rock (SiO2)) — metamorphic

Quartzite with Chert inclusions

Metamorphosed Quartz-rich Rock (SiO2)

Red Jasper (Silicon Dioxide (SiO2) with iron oxide inclusions) — mineral

Red Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

Biotite (Black Mica) (Biotite (K(Mg,Fe)3AlSi3O10(OH)2)) — mineral

Biotite (Black Mica)

Biotite (K(Mg,Fe)3AlSi3O10(OH)2)

Pumice (Pumice (Vesicular volcanic glass)) — Igneous

Pumice

Pumice (Vesicular volcanic glass)

Granite (Phaneritic plutonic rock (SiO2 + Al2O3)) — igneous

Granite

Phaneritic plutonic rock (SiO2 + Al2O3)

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

Yellow Quartz or Citrine

Silicon Dioxide (SiO2)

Vesicular basalt (likely iron-rich scoria) (Basaltic volcanic rock; chiefly plagioclase, clinopyroxene, olivine, and Fe-Ti oxides) — igneous

Vesicular basalt (likely iron-rich scoria)

Basaltic volcanic rock; chiefly plagioclase, clinopyroxene, olivine, and Fe-Ti oxides

Gabbro (or Basalt Pebble) (Mafic Intrusive/Extrusive Igneous Rock) — igneous

Gabbro (or Basalt Pebble)

Mafic Intrusive/Extrusive Igneous Rock

Diorite (Diorite (Intermediate Plutonic Rock)) — igneous

Diorite

Diorite (Intermediate Plutonic Rock)

Diorite (Diorite) — igneous

Diorite

Diorite

Basalt (Basalt) — igneous

Basalt

Basalt

Weathered basalt cobble (Basalt; fine-grained mafic volcanic rock, chiefly plagioclase and pyroxene with possible olivine and iron oxides) — igneous

Weathered basalt cobble

Basalt; fine-grained mafic volcanic rock, chiefly plagioclase and pyroxene with possible olivine and iron oxides

Granite (Intrusive Phaneritic Felsic Igneous Rock) — igneous

Granite

Intrusive Phaneritic Felsic Igneous Rock

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

Granite

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

Mica Schist (Schist (Muscovite-Quartz Schist)) — metamorphic

Mica Schist

Schist (Muscovite-Quartz Schist)

Basalt Pebble (Extrusive igneous rock) — igneous

Basalt Pebble

Extrusive igneous rock