Granite
Granite (Phaneritic igneous rock)
Category
Browse mineral on igneous rock specimens identified by the Rock Identifier community.
Granite
Granite (Phaneritic igneous rock)
Granite (weathered, possibly porphyritic)
Granite; primarily quartz (SiO₂), feldspars, and mica/amphibole
Granite
Intrusive Igneous Rock (Felsic)
Granite
Intrusive Igneous Rock (Felsic)
Granite
Felsic intrusive igneous rock
Banded Gneiss Pebble
Gneiss (Metamorphic Rock)
Granite
Felsic intrusive igneous rock
Pink Granite
Phaneritic Felsic Igneous Rock
Granite
Phaneritic Plutonic Felsic Rock
Fluorite with Quartz coating
Calcium Fluoride (CaF2) with Silicon Dioxide (SiO2)
Granite Pebble with Quartz Vein
Granite (Plutonic Igneous Rock) with Quartz (SiO2)
Diorite (Spotted)
Diorite (Intrusive igneous rock)
Granite Pebble
Granite (Plutonic Igneous Rock)
Diorite (River Cobble)
Intermediate plutonic igneous rock
Granite
Phaneritic Felsic Igneous Rock
Dalmatian Stone
Dalmatian Jasper (Aplite rock composition)
Basalt
Aphanitic Mafic Igneous Rock
Granite Pebble
Phaneritic Felsic Igneous Rock
Basalt
Aphanitic Mafic Igneous Rock
Granite
Phaneritic Igneous Rock (Granite)
Granite Pebble
Granite (Phaneritic Igneous Rock)
Gabbro (likely with Pyrite/Sulfide mineralization)
Mafic Intrusive Igneous Rock
Granite
Intrusive Igneous Rock (composed primarily of quartz, alkali feldspar, and plagioclase)
Granite
Phaneritic Igneous Rock (Granite)
Granite (Weathered)
Phaneritic Felsic Igneous Rock
Granite
Phaneritic Igneous Rock (Granite)
Speckled feldspar-rich pebble
Likely leucocratic granite or granitic pegmatite, chiefly potassium feldspar with dark biotite or amphibole
Serpentine (Serpentinite)
Serpentinite / (Mg,Fe)3Si2O5(OH)4
Smooth river pebble, likely quartz-rich sandstone or quartzite
Probable quartz arenite (sandstone) or quartzite; mainly SiO₂ with minor iron-bearing minerals
Rounded gray river pebble, likely basalt or andesite
Fine-grained mafic to intermediate volcanic rock; commonly basalt (plagioclase ± pyroxene/olivine)
Quartz Pebble
Silicon Dioxide (SiO2)
Granite
Phaneritic Felsic Igneous Rock
Quartz Druze on Matrix
Silicon Dioxide (SiO2)
Dalmatian Stone
Dalmatian Jasper (Aplitic Rock)
Granite (Pebble)
Intrusive Felsic Igneous Rock
Basalt Pebble
Aphanitic Mafic Igneous Rock
Granite
Phaneritic Felsic Igneous Rock
Granite or Porphyritic Igneous Rock (weathered)
Granitoid
Granite Pebble
Granite (Plutonic Igneous Rock)
Granite (Pink/Red Granite)
Felsic Plutonic Igneous Rock
Granite
Felsic intrusive igneous rock
Granite
Felsic intrusive igneous rock