Granite Boulder
Intrusive Igneous Rock
Category
Browse mineral in igneous rock specimens identified by the Rock Identifier community.
Granite Boulder
Intrusive Igneous Rock
Granite
Intrusive igneous rock
Granite
Intrusive igneous rock (Felsic)
Leopard Skin Jasper
Orbicular Jasper (Silicon Dioxide, SiO2)
Granite Pebble
Intrusive Igneous Rock
Granite
Intrusive Igneous Rock
Granite River Rock
Intrusive igneous rock (composed mainly of quartz, alkali feldspar, and plagioclase)
Granite
Felsic intrusive igneous rock
Clear Quartz
SiO2 (Silicon Dioxide)
Granite
Intrusive Igneous Rock
Granite
Intrusive Igneous Rock
Granite
Intrusive Igneous Rock
Granite
Intrusive Igneous Rock
Granite
Plutonic Igneous Rock
Chalcopyrite
Copper Iron Sulfide (CuFeS2)
Granite (weathered cobble)
Granite; chiefly quartz, feldspar, and mica/amphibole
Granite Pebble
Intrusive Igneous Rock
Granite
Intrusive Igneous Rock
Basalt
Extrusive Igneous Rock
Porphyritic Andesite/Basalt or Diorite River Rock
Porphyritic Igneous Rock
Quartz
Silicon dioxide (SiO2)
Likely granite pebble
Granite, a quartz–feldspar–mica intrusive igneous rock
Granite Pebble
Intrusive Igneous Rock
Granite
Intrusive Igneous Rock
Granite
Intrusive Igneous Rock
Granite
Intrusive Igneous Rock
Granite
Intrusive Igneous Rock
Granite
Intrusive Igneous Rock
Granite with Pyrite or Mica
Phaneritic intrusive igneous rock
Granite
Intrusive igneous rock
Granite
Intrusive Igneous Rock
Granite
Intrusive Igneous Rock
Granite
Intrusive Igneous Rock
Granite
Intrusive Igneous Rock
Granite
Intrusive Igneous Rock
Granite
Intrusive Igneous Rock
Granite Pebble
Intrusive Igneous Rock
White Topaz
Aluminum Silicate Fluoride Hydroxide; Al2SiO4(F,OH)2
Quartz-rich granite (likely leucocratic granite)
Granite, composed mainly of quartz and feldspar with minor dark minerals
Magnetite (Lodestone variety)
Magnetite (Fe3O4)
Granite and Porphyry Pebbles
Intrusive Igneous Rock
Granite
Phaneritic Igneous Rock