Rock Identifier

Category

Granite

Browse granite specimens identified by the Rock Identifier community.

Diorite (weathered) (Intermediate plutonic igneous rock) — igneous

Diorite (weathered)

Intermediate plutonic igneous rock

igneous
Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

mineral
Milky Quartz (Crystalline Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Crystalline Silicon Dioxide (SiO2)

mineral
Clear Quartz (SiO2 (Silicon Dioxide)) — mineral

Clear Quartz

SiO2 (Silicon Dioxide)

mineral
Quartz (Smoky/Milky variety) (Silicon Dioxide (SiO2)) — mineral

Quartz (Smoky/Milky variety)

Silicon Dioxide (SiO2)

mineral
Pink Granite (Granite (Felsic Plutonic Rock)) — igneous

Pink Granite

Granite (Felsic Plutonic Rock)

igneous
Red Granite (Potassium-feldspar rich Granite) — igneous

Red Granite

Potassium-feldspar rich Granite

igneous
Pink Granite (Granite (Felsic Plutonic Rock)) — igneous

Pink Granite

Granite (Felsic Plutonic Rock)

igneous
Pink Granite (Granite (Phaneritic intrusive rock)) — igneous

Pink Granite

Granite (Phaneritic intrusive rock)

igneous
Red Granite (Granite (Felsic Plutonic Rock)) — igneous

Red Granite

Granite (Felsic Plutonic Rock)

igneous
Graphic Granite (Graphic Granite (a variety of Pegmatite)) — igneous

Graphic Granite

Graphic Granite (a variety of Pegmatite)

igneous
Potassium Feldspar (Orthoclase) (KAlSi3O8) — mineral

Potassium Feldspar (Orthoclase)

KAlSi3O8

mineral
Black Tourmaline (Schorl) (Schorl (Na(Fe^2+)3Al6(Si6O18)(BO3)3(OH)4)) — Mineral

Black Tourmaline (Schorl)

Schorl (Na(Fe^2+)3Al6(Si6O18)(BO3)3(OH)4)

Mineral
Diorite (Diorite (Intermediate intrusive igneous rock)) — igneous

Diorite

Diorite (Intermediate intrusive igneous rock)

igneous
Banded Gneiss (Gneiss (High-grade Metamorphic Rock)) — metamorphic

Banded Gneiss

Gneiss (High-grade Metamorphic Rock)

metamorphic
Diabase (also known as Dolerite) (Diabase) — igneous

Diabase (also known as Dolerite)

Diabase

igneous
Quartz (Rock Crystal) (Silicon Dioxide (SiO2)) — mineral

Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

mineral
Diorite (Polished River Pebble) (Diorite (Intermediate intrusive igneous rock)) — igneous

Diorite (Polished River Pebble)

Diorite (Intermediate intrusive igneous rock)

igneous
Granite Thin Section (Granitic rock (Phaneritic texture)) — igneous

Granite Thin Section

Granitic rock (Phaneritic texture)

igneous
Granitic Gravel Piece (Granite (Felsic Plutonic Rock / SiO2 with Al2O3, K2O, Na2O)) — igneous

Granitic Gravel Piece

Granite (Felsic Plutonic Rock / SiO2 with Al2O3, K2O, Na2O)

igneous
Diorite (Diorite (an intermediate intrusive igneous rock)) — igneous

Diorite

Diorite (an intermediate intrusive igneous rock)

igneous
Gneiss (Granitic Gneiss) (Gneiss) — metamorphic

Gneiss (Granitic Gneiss)

Gneiss

metamorphic
Diorite (Diorite (Intermediate intrusive igneous rock)) — igneous

Diorite

Diorite (Intermediate intrusive igneous rock)

igneous
Biotite Mica in Quartz (Biotite (K(Mg,Fe)3AlSi3O10(F,OH)2) in Quartz (SiO2)) — mineral

Biotite Mica in Quartz

Biotite (K(Mg,Fe)3AlSi3O10(F,OH)2) in Quartz (SiO2)

mineral
Smoky Quartz (with complementary stones in jewelry setting) (Smoky Quartz (Silicon Dioxide - SiO2)) — mineral

Smoky Quartz (with complementary stones in jewelry setting)

Smoky Quartz (Silicon Dioxide - SiO2)

mineral
Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

mineral
Diorite (Diorite (Intermediate intrusive igneous rock)) — igneous

Diorite

Diorite (Intermediate intrusive igneous rock)

igneous
Rhyolite (Rhyolite) — igneous

Rhyolite

Rhyolite

igneous
Milky Quartz (Quartz (Silicon Dioxide, SiO2)) — mineral

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

mineral
Milky Quartz (Quartz (Silicon Dioxide, SiO2)) — mineral

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

mineral
Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

mineral
Blue Lepidolite (Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)) — mineral

Blue Lepidolite

Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)

mineral
Gneiss (Gneiss (Metamorphic rock composed primarily of quartz, feldspar, and mica)) — metamorphic

Gneiss

Gneiss (Metamorphic rock composed primarily of quartz, feldspar, and mica)

metamorphic
Amazonite (Microcline (KAlSi3O8)) — mineral

Amazonite

Microcline (KAlSi3O8)

mineral
Diorite (Salt and Pepper Rock) (Diorite) — igneous

Diorite (Salt and Pepper Rock)

Diorite

igneous
Diorite (Phaneritic intermediate plutonic rock) — igneous

Diorite

Phaneritic intermediate plutonic rock

igneous
Feldspar (Potassium Feldspar (KAlSi3O8)) — mineral

Feldspar

Potassium Feldspar (KAlSi3O8)

mineral
Crushed Granite Gravel (Granite (Mainly Quartz, Feldspar, and Mica)) — igneous

Crushed Granite Gravel

Granite (Mainly Quartz, Feldspar, and Mica)

igneous
Granite (Weathered) (Phaneritic Plutonic Rock (primarily Quartz, Feldspar, and Mica)) — igneous

Granite (Weathered)

Phaneritic Plutonic Rock (primarily Quartz, Feldspar, and Mica)

igneous
Red Granite (Phaneritic Felsic Igneous Rock) — igneous

Red Granite

Phaneritic Felsic Igneous Rock

igneous
Diorite (River Pebble) (Intermediate plutonic igneous rock) — igneous

Diorite (River Pebble)

Intermediate plutonic igneous rock

igneous
Diorite (Phaneritic Intermediate Igneous Rock) — igneous

Diorite

Phaneritic Intermediate Igneous Rock

igneous