Rock Identifier

Category

Mineral On Igneous Rock

Browse mineral on igneous rock specimens identified by the Rock Identifier community.

Basalt (Basalt) — igneous

Basalt

Basalt

igneous
Red Sandstone (Sandstone (principally Quartz with Iron Oxide coating)) — sedimentary

Red Sandstone

Sandstone (principally Quartz with Iron Oxide coating)

sedimentary
Quartz (Clear Quartz/Rock Crystal) (Silicon Dioxide (SiO2)) — mineral

Quartz (Clear Quartz/Rock Crystal)

Silicon Dioxide (SiO2)

mineral
Magnetite (Small Granule) (Magnetite (Fe3O4)) — mineral

Magnetite (Small Granule)

Magnetite (Fe3O4)

mineral
Granite Cobble (Felsic intrusive igneous rock (composition: SiO₂ with KAlSi₃O₈, NaAlSi₃O₈, and CaAl₂Si₂O₈)) — igneous

Granite Cobble

Felsic intrusive igneous rock (composition: SiO₂ with KAlSi₃O₈, NaAlSi₃O₈, and CaAl₂Si₂O₈)

igneous
Ruby in Zoisite (Ruby (Corundum, Al2O3) in Zoisite (Calcium aluminum silicate hydroxide, Ca2Al3(SiO4)3(OH)) with some Hornblende) — Metamorphic Rock (specifically a rock composed of minerals)

Ruby in Zoisite

Ruby (Corundum, Al2O3) in Zoisite (Calcium aluminum silicate hydroxide, Ca2Al3(SiO4)3(OH)) with some Hornblende

Metamorphic Rock (specifically a rock composed of minerals)
Quartz (Quartz (Silicon Dioxide - SiO2)) — Mineral

Quartz

Quartz (Silicon Dioxide - SiO2)

Mineral
Lepidolite in Quartz (Lithium-bearing Ore) (Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2) and Quartz (SiO2)) — igneous/mineral

Lepidolite in Quartz (Lithium-bearing Ore)

Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2) and Quartz (SiO2)

igneous/mineral
Granite Glacial Erratic (Granite (Phaneritic Quartz-Feldspar Plutonic Rock)) — igneous

Granite Glacial Erratic

Granite (Phaneritic Quartz-Feldspar Plutonic Rock)

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

Obsidian

Volcanic Glass (Primary composition: SiO2 - Silicon Dioxide)

igneous
Prehnite (Prehnite, Ca2Al2Si3O10(OH)2) — Mineral

Prehnite

Prehnite, Ca2Al2Si3O10(OH)2

Mineral
Basalt (Mafic Volcanic Rock (composed of Plagioclase Feldspar and Pyroxene)) — igneous

Basalt

Mafic Volcanic Rock (composed of Plagioclase Feldspar and Pyroxene)

igneous
Unable to identify - Image contains non-geological items — N/A

Unable to identify - Image contains non-geological items

N/A
Basalt Pebble (Basalt) — igneous

Basalt Pebble

Basalt

igneous
Lapis Lazuli (Lapis Lazuli (a rock composed primarily of Lazurite (Na,Ca)₈[(S,Cl,SO₄,OH)₂|(Al₆Si₆O₂₄)], with varying amounts of Calcite, Pyrite, and Sodalite.)) — Mineral

Lapis Lazuli

Lapis Lazuli (a rock composed primarily of Lazurite (Na,Ca)₈[(S,Cl,SO₄,OH)₂|(Al₆Si₆O₂₄)], with varying amounts of Calcite, Pyrite, and Sodalite.)

Mineral
Basalt with Caliche (Extrusive Mafic Igneous Rock with Secondary Carbonate Crust) — igneous

Basalt with Caliche

Extrusive Mafic Igneous Rock with Secondary Carbonate Crust

igneous
Epidote in Quartz (Quartz with Epidote inclusions (SiO2 with Ca2(Al,Fe)3(SiO4)3(OH) inclusions)) — Mineral

Epidote in Quartz

Quartz with Epidote inclusions (SiO2 with Ca2(Al,Fe)3(SiO4)3(OH) inclusions)

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

Granite

Granite (Phaneritic Quartz-Feldspar Rock)

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

Basalt

Basalt (Mafic volcanic rock)

igneous
Vesicular Basalt (River Rock) (Afanitic Vesicular Basalt) — igneous

Vesicular Basalt (River Rock)

Afanitic Vesicular Basalt

igneous
Obsidian (Volcanic Glass (SiO2)) — igneous

Obsidian

Volcanic Glass (SiO2)

igneous
Quartz Vein in Sedimentary Matrix (Silicon Dioxide (SiO2) with host rock) — mineral

Quartz Vein in Sedimentary Matrix

Silicon Dioxide (SiO2) with host rock

mineral
Quartz (Float/Abraded) (Quartz (SiO₂)) — Mineral

Quartz (Float/Abraded)

Quartz (SiO₂)

Mineral
Magnetite / Hematite mix (Iron Ore) (Fe3O4 (Magnetite) / Fe2O3 (Hematite)) — mineral

Magnetite / Hematite mix (Iron Ore)

Fe3O4 (Magnetite) / Fe2O3 (Hematite)

mineral
Quartz (Quartz (Silicon Dioxide, SiO2)) — Mineral

Quartz

Quartz (Silicon Dioxide, SiO2)

Mineral
Clear Quartz (Rock Crystal) (Silicon Dioxide (SiO2)) — mineral

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

mineral
Vesicular Basalt (Scoria) (Mafic extrusive igneous rock (primarily Plagioclase Feldspar and Pyroxene)) — igneous

Vesicular Basalt (Scoria)

Mafic extrusive igneous rock (primarily Plagioclase Feldspar and Pyroxene)

igneous
Diorite (Dalmatian Stone variant) (Phaneritic Plutonic Igneous Rock (Medium to Fine-grained Diorite)) — igneous

Diorite (Dalmatian Stone variant)

Phaneritic Plutonic Igneous Rock (Medium to Fine-grained Diorite)

igneous
Granite Pebble (Pink Granite) (Phaneritic Igneous Rock (primarily Quartz, Potassium Feldspar, and Plagioclase)) — igneous

Granite Pebble (Pink Granite)

Phaneritic Igneous Rock (primarily Quartz, Potassium Feldspar, and Plagioclase)

igneous
Gneiss (Gneiss (Metamorphic rock of variable composition, typically SiO2 rich)) — metamorphic

Gneiss

Gneiss (Metamorphic rock of variable composition, typically SiO2 rich)

metamorphic
Bumblebee Jasper (Fossiliferous Volcanic Rock (composed of Calcium Carbonate, Manganese Oxides, and Arsenic Sulfides)) — igneous

Bumblebee Jasper

Fossiliferous Volcanic Rock (composed of Calcium Carbonate, Manganese Oxides, and Arsenic Sulfides)

igneous
Basalt (Mafic Volcanic Rock (composed of plagioclase, pyroxene, and olivine)) — Igneous

Basalt

Mafic Volcanic Rock (composed of plagioclase, pyroxene, and olivine)

Igneous
Granitic Pegmatite (Coarse-grained Granite (KAlSi3O8 + SiO2)) — igneous

Granitic Pegmatite

Coarse-grained Granite (KAlSi3O8 + SiO2)

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

Mahogany Obsidian

Volcanic Glass with Hematite/Magnetite inclusions

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

Vesicular Basalt

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

igneous
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)

igneous
Granite (Granite (Mainly Quartz: SiO2, Feldspar: KAlSi3O8 – NaAlSi3O8 – CaAl2Si2O8, and Mica)) — igneous

Granite

Granite (Mainly Quartz: SiO2, Feldspar: KAlSi3O8 – NaAlSi3O8 – CaAl2Si2O8, and Mica)

igneous
Basalt (Basalt) — igneous

Basalt

Basalt

igneous
Feldspar Granodiorite (Granodiorite (Na,Ca)(Si,Al)4O8) — igneous

Feldspar Granodiorite

Granodiorite (Na,Ca)(Si,Al)4O8

igneous
Basalt (Basalt (Mafic Extrusive)) — igneous

Basalt

Basalt (Mafic Extrusive)

igneous
Scoria (Basaltic Lava Rock) (Vesicular Basalt) — igneous

Scoria (Basaltic Lava Rock)

Vesicular Basalt

igneous
Granite (Phaneritic plutonic rock (approx. 20-60% quartz, 35-90% feldspar)) — igneous

Granite

Phaneritic plutonic rock (approx. 20-60% quartz, 35-90% feldspar)

igneous