Smoky Quartz (with possible Feldspar inclusions)
Silicon Dioxide (SiO2)
Category
Browse granite specimens identified by the Rock Identifier community.
Smoky Quartz (with possible Feldspar inclusions)
Silicon Dioxide (SiO2)
Smoky Quartz
Smoky Quartz (Silicon Dioxide - SiO2)
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
Quartz (Milky/Smoky variety)
Silicon Dioxide (SiO2)
Amazonite
KAlSi3O8 (Potassium Aluminum Silicate)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of Titanium, Iron, or Manganese
Orthoclase Feldspar
Orthoclase (KAlSi3O8)
Granodiorite
Granodiorite (Intermediate intrusive igneous rock)
Diorite
Diorite
Biotite Mica
Biotite (K(Mg,Fe)3AlSi3O10(F,OH)2)
Amazonite
K(AlSi3O8) - Potassium Aluminum Silicate (color due to lead)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Quartz (Milky/Common variety)
Silicon Dioxide (SiO2)
Basalt (River Pebble)
Basalt
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Quartz (Milky/Clear)
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Mica (Biotite and Muscovite) in Matrix
Potassium aluminum silicate with iron/magnesium (KAl2(AlSi3O10)(F,OH)2 / K(Mg,Fe)3AlSi3O10(F,OH)2)
Quartz
Silicon Dioxide (SiO2)
Quartz (Grain/Fragment)
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Quartz / Rock Crystal
Silicon Dioxide (SiO2)
Quartz with Iron Staining
Silicon Dioxide (SiO2)
Blue Apatite
Apatite (Ca5(PO4)3(F,Cl,OH))
Amethyst
Silicon Dioxide (SiO2) with iron impurities
Muscovite Mica (Granitic Pegmatite)
Muscovite - KAl2(AlSi3O10)(OH)2
Milky or Greenish Quartz Pebble
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Diorite
Phaneritic Intrusive Igneous Rock (Intermediate Composition)
Diorite
Diorite (Intermediate Plutonic Rock)
Diorite
Phaneritic Intermediate Plutonic Rock (Diorite)
Potassium Feldspar
Orthoclase (KAlSi3O8)
Diorite
Diorite (Intermediate intrusive igneous rock)
Granitic Gneiss
Gneiss (Metamorphic Rock)
Unakite Epidote Conglomerate
Epidotized granitic conglomerate
River Rock (Granitic Gneiss)
Foliated Granitic Gneiss
Unakite
Unakite (Altered Granite consisting of Orthoclase KAlSi3O8, Epidote Ca2(Al,Fe)3(SiO4)3(OH), and Quartz SiO2)
Gneiss
Gneiss
Pink Granite (Water-worn Cobble)
Phaneritic Felsic Intrusive Igneous Rock
Pink Granite (Fragment)
Pink Granite (dominated by Potassium Feldspar: KAlSi3O8)
Granite (River-worn Cobble)
Phaneritic Felsic Igneous Rock (primarily Quartz, Potassium Feldspar, and Plagioclase)