Orthoclase Feldspar
KAlSi3O8 (Potassium Aluminum Silicate)
mineral
Category
Granite
Browse granite specimens identified by the Rock Identifier community.
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Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Iron-stained)
Silicon Dioxide (SiO2)
mineral
Biotite (Black Mica)
Biotite - K(Mg,Fe)3(AlSi3O10)(OH)2
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Milky or Smoky variety)
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Diorite (Dalmatian Stone variant)
Phaneritic Intermediate Plutonic Rock (Diorite)
igneous
Quartz (Smoky Quartz variant)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Smoky Quartz variant)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Smoky Quartz
Silicon Dioxide (SiO2) with aluminum impurities
mineral
Granite (Thin Section)
Granite (Felsic Plutonic Rock)
igneous
Granite (Dioritic variant)
Granite (Phaneritic Igneous Rock)
igneous
Gabbro
Gabbro (Mg,Fe)2Si2O6 and CaAl2Si2O8
igneous
Diorite
Diorite (Intermediate Plutonic Rock)
igneous
Labradorite
Labradorite (a calcium-enriched feldspar mineral), (Ca, Na)(Al, Si)4O8
mineral
Granodiorite
Granodiorite (Intermediate intrusive igneous rock)
igneous
Diorite
Intrusive Igneous Diorite
igneous
Diorite (Salt and Pepper Rock)
Phaneritic Plutonic Diorite (Plagioclase Feldspar + Amphibole/Biotite)
igneous
Diorite (River Cobble)
Phaneritic intermediate plutonic rock
igneous
Gabbro (River Cobble)
Gabbro (mafic intrusive rock)
igneous
Unakite Epidosite Pebble
Epidotized Granite (Epidote-Albite-Quartz)
metamorphic
Granodiorite
Granodiorite (Intermediate intrusive igneous rock)
igneous
Diorite (River Pebble)
Intermediate plutonic igneous rock
igneous
Orthoclase Feldspar
KAlSi3O8 (Potassium Aluminum Silicate)
mineral
Charnockite
Orthopyroxene-bearing granite (Charnockite)
metamorphic
Feldspar Rich Granite with Limonite Staining
K-Feldspar Granite (KAlSi3O8)
igneous
Alkali Feldspar Granite
Alkali Feldspar Granite (KAlSi3O8)
igneous
Glacial Cobble (likely Granitic or Gneissic)
Granite/Gneiss Glacial Erratic
igneous
Orthoclase Feldspar
KAlSi3O8 (Potassium aluminum silicate)
mineral
Granitoid (River Pebble)
Granite (primarily Quartz, Feldspar, and Mica)
igneous
Granitic Pegmatite
Granitic Pegmatite (principally Quartz, Potassium Feldspar, and Mica)
igneous
Potassium Feldspar
K-Feldspar (Orthoclase/Microcline) KAlSi3O8
mineral
Diorite (Salt and Pepper Rock)
Diorite
igneous
Unakite
Unakite Epidosite (Granite with epidote and orthoclase)
metamorphic