Granite
Phaneritic plutonic igneous rock (SiO2 range 65-75%)
Category
Browse igneous rock specimens identified by the Rock Identifier community.
Granite
Phaneritic plutonic igneous rock (SiO2 range 65-75%)
Granitic Pegmatite
Coarse-grained Igneous Rock (Granitic composition: KAlSi3O8, SiO2)
Peridotite
Ultramafic intrusive igneous rock (composition: (Mg, Fe)2SiO4)
Granite
Phaneritic Igneous Rock (primarily SiO2, Al2O3, K2O, Na2O)
Granite
Granite (a plutonic igneous rock composed of quartz, feldspar, and mica)
Granite with Mafic Inclusions
Granite (Phaneritic igneous rock composed of Quartz, Feldspar, and Mica)
Granite
Phaneritic Intrusive Igneous Rock (composed of Quartz, Feldspar, and Mica)
Basalt with Chert/Obsidian blade
Aphanitic Mafic Igneous Rock (Basalt) with Microcrystalline Silica (Chert)
Granite
Phaneritic intrusive igneous rock (approx. 70 percent SiO2)
Pink Granite (Potassium-rich Granite)
Phaneritic Felsic Igneous Rock (primarily SiO2, Al2O3, K2O)
Basalt with Caliche Crust
Aphanitic Mafic Igneous Rock with Calcium Carbonate (CaCO3) coating
Basalt with Sulfide/Pyrite inclusion
Aphanitic Mafic Igneous Rock (likely Basalt) with Pyrite (FeS2)
Granite
Granite (a broadly defined plutonic igneous rock, often more specifically classified as quartz monzonite or granodiorite based on precise mineral percentages)
Slag (Industrial Byproduct)
Artificial silicate/iron byproduct
Sodalite
Sodalite (Na4Al3Si3O12Cl)
Granitoid (Granite/Diorite)
Phaneritic Igneous Rock (primarily Quartz, Feldspar, and Mica/Amphiboles)
Granite
Granite (Phaneritic intrusive igneous rock; primarily SiO2 and Al2O3)
Pegmatite (likely Granitic Pegmatite)
Pegmatite (a coarse-grained igneous rock, often with granitic composition)
Granite
Phaneritic Intrusive Igneous Rock (primarily Quartz, Feldspar, and Mica)
Granite
Phaneritic intrusive igneous rock (Composition: Quartz, Feldspar, Mica)
Pink Granite
Phaneritic Plutonic Igneous Rock (high K-feldspar content)
Granite
Phaneritic plutonic igneous rock (SiO2 range 65-75%)
Granite
Phaneritic Igneous Rock (composed mostly of Quartz, Feldspar, and Mica)
Granite (Granitic Pegmatite/Porphyry)
Felsic intrusive igneous rock (Quartz, Feldspar, Mica composition)
Pink Granite
Phaneritic Acidic Igneous Rock (primarily SiO2, Al2O3, K2O)
Granite
Granite (Phaneritic igneous rock consisting of Quartz, Feldspar, and Mica)
Granite
Phaneritic Igneous Rock (primarily Quartz, Potassium Feldspar, and Plagioclase)
Granite (Alkali-feldspar rich)
Phaneritic Felsic Igneous Rock (Major components: KAlSi3O8, SiO2)
Granite (Dioritic variant)
Phaneritic Felsic Igneous Rock (primarily Quartz, Feldspar, and Mica)
Granite
Phaneritic Felsic Igneous Rock (primarily Quartz, Feldspar, and Mica)
Granite (Pink Orthoclase variety)
Phaneritic intrusive igneous rock (Quartz, Orthoclase, Plagioclase, and Mica)
Granite Pebble
Phaneritic Felsic Igneous Rock (primarily SiO2, KAlSi3O8, NaAlSi3O8)
Granite
Phaneritic Felsic Igneous Rock (composed of quartz, feldspar, and mica)
Granite
Phaneritic Igneous Rock (composed primarily of Quartz, Feldspar, and Mica)
Granite
Phaneritic Intrusive Igneous Rock (composed of Quartz, Feldspar, and Mica)
Granite
Phaneritic intrusive igneous rock (composition: Quartz, Feldspar, Mica)
Granite
Phaneritic Plutonic Igneous Rock (composed of Quartz, Feldspar, and Mica)
Pink Rhyolite
Rhyolite (High-silica volcanic rock)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Granite
Felsic Intrusive Igneous Rock (SiO2, Al2O3, K2O, Na2O)
Granite
Phaneritic plutonic igneous rock (Alkali feldspar, Quartz, Plagioclase)
River Pebble (Gabbro or Basalt)
Mafic Igneous Rock (composed primarily of Pyroxene and Plagioclase Feldspar)