Rock Identifier

Category

Igneous And Sedimentary Mixture

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

Basalt (Basalt (Mafic Extrusive)) — igneous

Basalt

Basalt (Mafic Extrusive)

Basalt (Basalt (Mafic Extrusive)) — igneous

Basalt

Basalt (Mafic Extrusive)

Peridotite (Olivine/Peridot) (Peridotite: (Mg,Fe)2SiO4 (Olivine-rich ultramafic rock)) — igneous

Peridotite (Olivine/Peridot)

Peridotite: (Mg,Fe)2SiO4 (Olivine-rich ultramafic rock)

Basalt (Basalt) — igneous

Basalt

Basalt

Granite (Granite (Silicic Plutonic Rock)) — igneous

Granite

Granite (Silicic Plutonic Rock)

Dyed Dalmatian Jasper (Dalmatian Stone) (Perthitic Feldspar with Arfvedsonite inclusions) — igneous

Dyed Dalmatian Jasper (Dalmatian Stone)

Perthitic Feldspar with Arfvedsonite inclusions

Vesicular Basalt (Scoria) (Vesicular Basalt) — igneous

Vesicular Basalt (Scoria)

Vesicular Basalt

Granite (Granite) — igneous

Granite

Granite

Granite (Granite) — igneous

Granite

Granite

Granite (Granite (Phaneritic igneous rock)) — igneous

Granite

Granite (Phaneritic igneous rock)

Granite (Alkali-feldspar Granite) (Granite (composed primarily of Quartz, K-Feldspar, and Plagioclase)) — Igneous

Granite (Alkali-feldspar Granite)

Granite (composed primarily of Quartz, K-Feldspar, and Plagioclase)

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

Pink Granite (River Pebble)

Phaneritic Felsic Igneous Rock

Tumbled Obsidian (Volcanic Glass (Silicon Dioxide)) — igneous

Tumbled Obsidian

Volcanic Glass (Silicon Dioxide)

Porphyritic Basalt (Chinese Writing Stone) (Porphyritic Basalt with Feldspar Phenocrysts) — igneous

Porphyritic Basalt (Chinese Writing Stone)

Porphyritic Basalt with Feldspar Phenocrysts

Smoky Quartz and Feldspar Pegmatite (Granitic Pegmatite (chiefly SiO2 and KAlSi3O8)) — igneous

Smoky Quartz and Feldspar Pegmatite

Granitic Pegmatite (chiefly SiO2 and KAlSi3O8)

Snowflake Obsidian (Flower Jasper variant) (Vitreous volcanic silicate with cristobalite inclusions) — igneous

Snowflake Obsidian (Flower Jasper variant)

Vitreous volcanic silicate with cristobalite inclusions

Granite (Phaneritic Felsic Igneous Rock) — igneous

Granite

Phaneritic Felsic Igneous Rock

Granodiorite (Granodiorite (intermediate intrusive igneous rock)) — igneous

Granodiorite

Granodiorite (intermediate intrusive igneous rock)

Granite (Phaneritic Felsic Igneous Rock) — igneous

Granite

Phaneritic Felsic Igneous Rock

Granite (Granite (Phaneritic Igneous Rock)) — igneous

Granite

Granite (Phaneritic Igneous Rock)

Granite (Felsic Plutonic Rock (Granite)) — igneous

Granite

Felsic Plutonic Rock (Granite)

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

Granite

Granite (Phaneritic Quartz-Feldspar Rock)

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

Granite

Granite (Felsic intrusive igneous rock)

Pink Granite (Felsic intrusive igneous rock) — igneous

Pink Granite

Felsic intrusive igneous rock

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

Granite

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

Obsidian (Obsidian (principally SiO2)) — igneous

Obsidian

Obsidian (principally SiO2)

Granite (Phaneritic Igneous Rock (Granite)) — igneous

Granite

Phaneritic Igneous Rock (Granite)

Granite (Phaneritic Acidic Igneous Rock (Granite Group)) — igneous

Granite

Phaneritic Acidic Igneous Rock (Granite Group)

Obsidian (Volcanic Glass (70-75% SiO2)) — igneous

Obsidian

Volcanic Glass (70-75% SiO2)

Obsidian (Obsidian (Volcanic Glass)) — Igneous

Obsidian

Obsidian (Volcanic Glass)

Felsic Igneous Rock (likely Rhyolite or weathered Granite) (Felsic Volcanic/Plutonic Rock) — igneous

Felsic Igneous Rock (likely Rhyolite or weathered Granite)

Felsic Volcanic/Plutonic Rock

Granite (Granite (Felsic Plutonic Rock)) — igneous

Granite

Granite (Felsic Plutonic Rock)

Granite (Granite (Felsic Plutonic Rock)) — igneous

Granite

Granite (Felsic Plutonic Rock)

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

Granite

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

Basalt with vesicles (Amygdaloidal Basalt) (Amygdaloidal Basalt (predominantly Plagioclase and Pyroxene)) — igneous

Basalt with vesicles (Amygdaloidal Basalt)

Amygdaloidal Basalt (predominantly Plagioclase and Pyroxene)

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

Granite

Granite (Mainly Quartz, Alkali Feldspar, and Plagioclase)

Apache Tear (Obsidian (Hydrated Silica / Amorphous Volcanic Glass)) — igneous

Apache Tear

Obsidian (Hydrated Silica / Amorphous Volcanic Glass)

Pegmatite with Muscovite (Granitic Pegmatite (KAl2(AlSi3O10)(OH)2)) — igneous

Pegmatite with Muscovite

Granitic Pegmatite (KAl2(AlSi3O10)(OH)2)

Granite (Granite (composed primarily of Quartz SiO2, Feldspar KAlSi3O8 – NaAlSi3O8 – CaAl2Si2O8, and Mica)) — Igneous

Granite

Granite (composed primarily of Quartz SiO2, Feldspar KAlSi3O8 – NaAlSi3O8 – CaAl2Si2O8, and Mica)

Granite (Phaneritic Igneous Rock (Granite)) — igneous

Granite

Phaneritic Igneous Rock (Granite)

Granodiorite (Phaneritic Granodiorite) — igneous

Granodiorite

Phaneritic Granodiorite

Granitic Pegmatite with Schorl Tourmaline (Granitic Pegmatite (Schorl: NaFe3Al6(BO3)3Si6O18(OH)4)) — igneous

Granitic Pegmatite with Schorl Tourmaline

Granitic Pegmatite (Schorl: NaFe3Al6(BO3)3Si6O18(OH)4)