Rock Identifier

Category

Igneous (Anthropogenic)

Browse igneous (anthropogenic) specimens identified by the Rock Identifier community.

Learn about Igneous (Anthropogenic) in the encyclopedia

Carbonatite

Lamproite

Troctolite

Basalt

Gabbro

Kimberlite

Diorite

Norite

Pyroxenite

Migmatite

Granite

Dalmatian Jasper

Dalmatian Jasper

Banded Gneiss (Gneiss) — metamorphic

Banded Gneiss

Gneiss

Feldspar (Feldspar (Orthoclase/Microcline)) — mineral

Feldspar

Feldspar (Orthoclase/Microcline)

Pyrite Nodules / Weathered Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite Nodules / Weathered Pyrite

Iron Sulfide (FeS2)

Blue Apatite (Ca5(PO4)3(F,Cl,OH)) — mineral

Blue Apatite

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

Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

Chalcopyrite (Copper Iron Sulfide (CuFeS2)) — mineral

Chalcopyrite

Copper Iron Sulfide (CuFeS2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Granite with Quartz Vein (Granite) — Igneous

Granite with Quartz Vein

Granite

Granite or Pegmatite in host rock (Granitoid / Felsic Intrusive Rock) — Igneous

Granite or Pegmatite in host rock

Granitoid / Felsic Intrusive Rock

Aventurine (likely Green Aventurine) (Silicon Dioxide (SiO2) with mineral inclusions) — Mineral/Mineraloid within a rock matrix

Aventurine (likely Green Aventurine)

Silicon Dioxide (SiO2) with mineral inclusions

Mineral/Mineraloid within a rock matrix

Granite (Granite) — igneous

Granite

Granite

Quartz in Host Rock (Silicon Dioxide (SiO2) in Rhyolite or Granite matrix) — igneous

Quartz in Host Rock

Silicon Dioxide (SiO2) in Rhyolite or Granite matrix

Sodalite (Sodalite (Na8(Al6Si6O24)Cl2)) — mineral

Sodalite

Sodalite (Na8(Al6Si6O24)Cl2)

Granite (Granite (Phaneritic igneous rock)) — igneous

Granite

Granite (Phaneritic igneous rock)

Granite Pebble (Phaneritic Felsic Igneous Rock) — igneous

Granite Pebble

Phaneritic Felsic Igneous Rock

Biotite or Phlogopite Mica (K(Mg,Fe)3(AlSi3O10)(F,OH)2) — mineral

Biotite or Phlogopite Mica

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

Dalmatian Stone (Peralkaline rhyolite) — igneous

Dalmatian Stone

Peralkaline rhyolite

Rounded gray granitoid pebble (Granite or granodiorite; chiefly quartz, feldspar, and mica/hornblende) — igneous

Rounded gray granitoid pebble

Granite or granodiorite; chiefly quartz, feldspar, and mica/hornblende

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

Granite

Granite (Felsic intrusive igneous rock)

Granite (Granite (Mainly Quartz, Feldspar, and Mica/Amphibole)) — igneous

Granite

Granite (Mainly Quartz, Feldspar, and Mica/Amphibole)

Granite (Granite) — igneous

Granite

Granite

Porphyritic Rhyolite (Birdseye Rhyolite) (Rhyolite (Porphyritic texture)) — igneous

Porphyritic Rhyolite (Birdseye Rhyolite)

Rhyolite (Porphyritic texture)

Dalmatian Jasper (Feldspar porphyry (Microcline and Quartz with Arfvedsonite spots)) — igneous

Dalmatian Jasper

Feldspar porphyry (Microcline and Quartz with Arfvedsonite spots)

Granite (Intrusive igneous felsic rock) — igneous

Granite

Intrusive igneous felsic rock

Dalmatian Stone (often called Dalmatian Jasper) (Peralkaline Feldsphathic Igneous Rock) — igneous

Dalmatian Stone (often called Dalmatian Jasper)

Peralkaline Feldsphathic Igneous Rock

Small dark, speckled stone (likely granite or diorite) (Likely fine-grained granitoid; exact identification is uncertain from the small, blurry view) — igneous

Small dark, speckled stone (likely granite or diorite)

Likely fine-grained granitoid; exact identification is uncertain from the small, blurry view

Rounded granite cobble (Granite, a coarse-grained felsic intrusive igneous rock composed chiefly of quartz, feldspar, and mica) — igneous

Rounded granite cobble

Granite, a coarse-grained felsic intrusive igneous rock composed chiefly of quartz, feldspar, and mica

Mixed river stones; foreground likely sandstone (Quartz-rich sandstone, with associated rounded quartzite/chert and other cobbles) — sedimentary

Mixed river stones; foreground likely sandstone

Quartz-rich sandstone, with associated rounded quartzite/chert and other cobbles

Granite Pebble (Granite) — igneous

Granite Pebble

Granite

Granitoid (Common Granite/Gneiss) (Granitoid (primarily Quartz [SiO2], Feldspar [KAlSi3O8], and Mica)) — igneous

Granitoid (Common Granite/Gneiss)

Granitoid (primarily Quartz [SiO2], Feldspar [KAlSi3O8], and Mica)

Weathered quartz-rich rock, possibly granite or pegmatite fragment (Uncertain; likely quartz–feldspar aggregate, potentially granitic pegmatite) — igneous

Weathered quartz-rich rock, possibly granite or pegmatite fragment

Uncertain; likely quartz–feldspar aggregate, potentially granitic pegmatite

Granite with Epidote (Granite, containing quartz, feldspar, and epidote) — Igneous

Granite with Epidote

Granite, containing quartz, feldspar, and epidote

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

Granite

Granite (Phaneritic Quartz-Feldspar Plutonic Rock)

Milky Quartz in Epidote Host Rock (Crystalline Silicon Dioxide (SiO2) with Epidote Ca2(Al,Fe)3(SiO4)3(OH)) — mineral

Milky Quartz in Epidote Host Rock

Crystalline Silicon Dioxide (SiO2) with Epidote Ca2(Al,Fe)3(SiO4)3(OH)

Granite (Phaneritic plutonic felsic rock (primarily Quartz, Feldspar, and Mica)) — igneous

Granite

Phaneritic plutonic felsic rock (primarily Quartz, Feldspar, and Mica)

Dalmation Stone (Peralkaline Rock (mixed silicate minerals)) — igneous

Dalmation Stone

Peralkaline Rock (mixed silicate minerals)

Dalmation Stone (often called Dalmatian Jasper) (Peralkaline Rock (Microgranite/Aplite), SiO2 with inclusions of Arfvedsonite) — igneous

Dalmation Stone (often called Dalmatian Jasper)

Peralkaline Rock (Microgranite/Aplite), SiO2 with inclusions of Arfvedsonite

Conglomerate with Quartz Inclusions (Conglomerate (clastic sedimentary rock) with internal Quartz (SiO2)) — sedimentary

Conglomerate with Quartz Inclusions

Conglomerate (clastic sedimentary rock) with internal Quartz (SiO2)

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

Granite fragment

Granite (Felsic Plutonic Rock)

Granite (Granite (composed primarily of Quartz, Potassium Feldspar, Plagioclase Feldspar, and Biotite/Mica)) — igneous

Granite

Granite (composed primarily of Quartz, Potassium Feldspar, Plagioclase Feldspar, and Biotite/Mica)

Granite and Igneous Mix (Phaneritic Felsic to Mafic Intrusive Rocks) — igneous

Granite and Igneous Mix

Phaneritic Felsic to Mafic Intrusive Rocks

Terracotta (Man-made ceramic brick fragment) (Baked clay / High-iron ceramic (Silicate-based ceramic)) — Anthropogenic material (Man-made sedimentary mimic)

Terracotta (Man-made ceramic brick fragment)

Baked clay / High-iron ceramic (Silicate-based ceramic)

Anthropogenic material (Man-made sedimentary mimic)