Quartz (Milky or Cloudy)
Silicon Dioxide (SiO2)
Category
Browse granite specimens identified by the Rock Identifier community.
Quartz (Milky or Cloudy)
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Citrine
Citrine (Silicon Dioxide - SiO2)
Quartz pebble
Silicon dioxide (SiO2)
Feldspar (specifically Orthoclase)
Potassium Aluminum Silicate (KAlSi3O8)
Milky Quartz
Silicon Dioxide (SiO2)
Pink Granite
Phaneritic Igneous Rock (high K-feldspar content)
Pink Granite
Granite (Phaneritic Acidic Igneous)
Orthoclase Feldspar (Sunstone variety)
KAlSi3O8 (Potassium Aluminum Silicate)
Unakite (Epidotized Granite)
Unakite; primarily composed of Epidote (Ca2(Al,Fe)3(SiO4)3(OH)), Orthoclase (KAlSi3O8), and Quartz (SiO2)
Milky Quartz Pebble
Silicon Dioxide (SiO2)
Amazonite
Amazonite (KAlSi3O8)
Diorite
Diorite (Intermediate intrusive igneous rock)
Milky Quartz
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Diorite
Intermediate plutonic igneous rock
Gneiss
Gneiss (High-grade metamorphic rock)
Granite Gneiss or Granitoid River Rock
Granitoid / Gneiss
Lepidolite
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2
Yellow Quartz
Silicon Dioxide (SiO2)
Aquamarine
Beryl (Be3Al2Si6O18 with iron impurities)
Smoky Quartz
Silicon Dioxide (SiO2)
Diorite (Polished River Stone)
Intrusive Igneous Diorite
Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Orthoclase Feldspar
Potassium Aluminum Silicate (KAlSi3O8)
Feldspar (Orthoclase)
Orthoclase (KAlSi3O8)
Orthoclase Feldspar
Potassium aluminum silicate (KAlSi3O8)
Granite (Weathered)
Phaneritic Plutonic Rock (primarily Quartz, Feldspar, and Mica)
Pink Granite
Intrusive Igneous Rock (Granitic)
Pink Granite
Phaneritic Igneous Rock (Quartz-Feldspar dominant)
Pink Granite
Phaneritic Felsic Igneous Rock (Granite)
Pink Granite
Granite (Felsic Plutonic Rock)
Pink Granite
Phaneritic Plutonic Felsic Rock (K-Feldspar Granite)
Granite Pebble
Granite (Felsic Plutonic Rock)
Beryl (likely Aquamarine) in matrix
Be3Al2(SiO3)6 (Beryllium Aluminum Silicate)
Pink Feldspar
Potassium Feldspar (KAlSi3O8)
Diorite
Diorite (Plagioclase feldspar and Hornblende/Biotite)
Diorite (Porphyritic)
Porphyritic Diorite
Pink Granite
Felsic Plutonic Rock (primarily Quartz, Potassium Feldspar, and Plagioclase)
Pink Granite
Phaneritic Felsic Igneous Plutonic Rock
Granite (weathered)
Felsic Intrusive Igneous Rock (composed of Quartz, Alkali Feldspar, and Plagioclase)
Pink Granite
Granite (Phaneritic Acidic Igneous Rock)