Quartz Sand Gravel
Silicon Dioxide (SiO2)
Category
Browse granite specimens identified by the Rock Identifier community.
Quartz Sand Gravel
Silicon Dioxide (SiO2)
Unakite
Epidotized Granite (Composed of Orthoclase Feldspar, Epidote, and Quartz)
Biotite (Black Mica)
K(Mg,Fe)3AlSi3O10(OH,F)2
Diorite
Diorite (Intermediate intrusive igneous rock)
Granite Gneiss
Gneiss (High-grade metamorphic rock)
Granite Pebble
Granitoid (comprised of Quartz, Feldspar, and Mica)
Pink Granite
Phaneritic Felsic Igneous Rock (Granite)
Granite Pebble
Granite (composed primarily of Quartz, Feldspar, and Mica/Amphibole)
Pink Granite
Phaneritic Plutonic Intrusive Rock (Granite)
Black Tourmaline
Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
Unakite
Unakite (Metasomatized Granodiorite)
Unakite
Unakite (altered granitic rock: SiO2 + Ca2(Al,Fe)3(SiO4)3(OH))
Unakite
Epidotized Granite (Fe, Ca, Al silicate + KAlSi3O8)
Gneiss
Gneiss (High-grade metamorphic rock)
Unakite
Epidotized Granite (SiO2 with Ca2(Al,Fe)3(SiO4)3(OH))
Terrazzo (Synthetic Composite Rock)
Cementitious or Epoxy Resin-bound Aggregates
Yellow Quartz Pebble
SiO2 (Silicon Dioxide)
Granite Fragment
Felsic Plutonic Rock (Granite)
Pink Granite
Phaneritic Plutonic Rock (Felsic)
Pink Granite
Phaneritic Coarse-Grained Granite
Granitoid (Common Granite)
Intrusive Igneous Granite-type Rock
Pink Granite
Phaneritic Felsic Igneous Rock (composed primarily of Orthoclase Feldspar and Quartz)
Pink Granite
Phaneritic Felsic Intrusive Igneous Rock
Pink Granite
Granite (Felsic plutonic rock)
Gabbro
Gabbro (Mafic Intrusive Igneous Rock)
Granitoid (Granite/Gneiss mix)
Phaneritic Felsic Igneous Rock
Gneiss
Gneiss (Metamorphic rock)
Granite Pebble
Granite (Phaneritic Igneous Rock)
Gabbro (Water-Worn Cobble)
Gabbro
Granite Cobble
Granitic intrusive igneous rock (Quartz, Feldspar, Mica)
Granodiorite Pebble
Granodiorite (containing Quartz, Plagioclase Feldspar, and Biotite/Amphibole)
Granite (Polished Pebble)
Phaneritic Plutonic Rock (primarily Orthoclase and Quartz)
Pink Granite
Granite (enriched in Potassium Feldspar)
Diorite (Gneissic)
Diorite
Unakite
Unakite (altered granitic rock)
Granite Pebble
Granite (Phaneritic intrusive rock)
Granite Pebble
Granite (Felsic Plutonic Rock)
Syenite
Syenite (Phaneritic Igneous Rock)
Granite Pebble
Granite (Felsic Plutonic Rock)
Granite Cobble
Granite (Phaneritic Igneous Rock)
Granite fragment
Granite (Felsic Plutonic Rock)
Granite Pebble
Felsic intrusive igneous rock