Granite

Granite with Biotite and Quartz

Phaneritic Felsic Igneous Rock (composed of SiO2, KAlSi3O8, and K(Mg,Fe)3AlSi3O10(OH)2)

Granodiorite

Granodiorite (Quartz + Plagioclase + Alkali Feldspar + Biotite/Hornblende)

Granodiorite

Granodiorite (Phaneritic intrusive igneous rock containing Plagioclase, Quartz, and Biotite/Amphibole)

Orthoclase Feldspar

Orthoclase (KAlSi3O8)

Granite (Thin Section)

Granite (Felsic Plutonic Rock)

Feldspar Rich Granite with Limonite Staining

K-Feldspar Granite (KAlSi3O8)

Granite (Dioritic variant)

Granite (Phaneritic Igneous Rock)

Glacial Cobble (likely Granitic or Gneissic)

Granite/Gneiss Glacial Erratic

Diorite (Salt and Pepper Rock)

Diorite

Biotite (Black Mica)

Biotite - K(Mg,Fe)3(AlSi3O10)(OH)2

Quartz (Milky or Smoky variety)

Silicon Dioxide (SiO2)

Quartz

Silicon Dioxide (SiO2)

Quartz (Smoky Quartz variant)

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Quartz (Smoky Quartz variant)

Silicon Dioxide (SiO2)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Orbicular Granite

Orbicular Granidiorite / Plutonic Igneous Rock

Granodiorite

Granodiorite (intermediate intrusive igneous rock)

Granite Cobble

Granite (Phaneritic Quartz-Feldspar specimen)

Granite with Epidote

Granite, containing quartz, feldspar, and epidote

Granite Pebble

Granite (Phaneritic intrusive igneous rock)

Pink Granite

Granite (Phaneritic intrusive igneous rock)

Pink Granite

Phaneritic Plutonic Felsic Rock (Granite)

Graphic Granite

Graphic Granite (Quartz/Feldspar intergrowth)

Granite (with alteration)

Granite (Felsic intrusive igneous rock)

Granite Pebble

Granite (Phaneritic intrusive igneous rock)

Granite Cobble

Felsic Intrusive Igneous Rock (Granite)

Granite Gneiss

Gneiss (derived from granitic protolith)

Pink Granite

Phaneritic Felsic Igneous Rock (Granite)

Pink Granite

Phaneritic Felsic Igneous Rock (Rich in K-Feldspar)

Red Granite

Phaneritic Felsic Intrusive Igneous Rock (primarily K-feldspar, Quartz, and Biotite)

Decomposed Granite

Grano-diorite/Granite-residuum (SiO2 primary)

Pink Granite

Phaneritic Felsic Intrusive Igneous Rock (composed of Quartz, Alkali Feldspar, and Plagioclase)

Granite Pebble

Granite (Phaneritic intrusive igneous rock comprising Quartz, Feldspar, and Mica)

Pink Granite

Phaneritic Felsic Igneous Rock (Rich in K-Feldspar)

Pink Granite

Phaneritic Felsic Igneous Rock (Rich in K-Feldspar)

Pink Granite

Phaneritic Felsic Intrusive Igneous Rock

Granite (Weathered)

Phaneritic Felsic Igneous Rock

Granite Cobble

Phaneritic Felsic Igneous Rock

Granite Gneiss

Gneiss (High-grade regional metamorphic rock)

Pink Granite

Granite (Phaneritic igneous rock composed mainly of quartz, alkali feldspar, and plagioclase)

Pink Granite

Phaneritic Felsic Igneous Rock (composed primarily of K-Feldspar, Quartz, and Plagioclase)