Granite
Granite (Alkali feldspar, Plagioclase feldspar, and Quartz)
Category
Browse carved stone specimens identified by the Rock Identifier community.
Granite
Granite (Alkali feldspar, Plagioclase feldspar, and Quartz)
Diorite
Intrusive Igneous Rock (Intermediate Composition)
Yellow Quartz (or Citrine Quartz)
Silicon Dioxide (SiO2)
Granite
Granite (composed primarily of Quartz SiO2, Feldspar (KAlSi3O8), and Mica)
Sandstone (Quartzose)
Arenite (primarily SiO2)
Unakite
Altered Granite (composed of orthoclase feldspar, green epidote, and quartz)
Granite
Granite (plutonic igneous rock)
Granite
Phaneritic plutonic rock (SiO2 range 65-75%)
Granite
Granite (composed primarily of Quartz SiO2, Potassium Feldspar KAlSi3O8, and Plagioclase)
Sandstone
Clastic sedimentary rock (Quartz arenite or arkose)
Granite
Granite (Phaneritic Quartz-Feldspar Rock)
Hematite
Iron Oxide (Fe2O3)
Jasper
Microcrystalline quartz (SiO2)
Granite
Granite (Phaneritic Quartz-Feldspar Plutonic Rock)
Red Jasper
Jasper (Silicon Dioxide, SiO2)
Diorite
Diorite (plutonic igneous rock)
Carnelian
Carnelian Agate (SiO2)
Serpentine
Serpentine Group (Mg,Fe,Ni,Al,Zn,Mn)3(Si,Al)2O5(OH)4
Strawberry Quartz
Quartz with Hematite inclusions (SiO2 + Fe2O3)
Granite
Granite (Phaneritic Igneous Rock)
Granite
Phaneritic Felsic Igneous Rock
Sandstone (Feldspathic / Arkose)
Sandstone (SiO2 with variable mineral grains)
Polished Agate (Yellow/Grey Agate Pendant)
Silicon Dioxide (SiO2)
Charnockite
Orthopyroxene-bearing granite (Charnockite)
Dalmatian Jasper (Dalmatian Stone)
Peralkaline Rock with Feldspar and Arfvedsonite
Dragon Blood Jasper
SiO2
Garnierite in Matrix
Nickel-bearing Magnesium Silicates (Garnierite)
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
Granite
Granite (Felsic Plutonic Rock, consisting primarily of Quartz, Feldspar, and Mica)
Malachite and Cuprite on Host Rock
Cu2CO3(OH)2 (Malachite) and Cu2O (Cuprite)
Sandstone
Clastic Sedimentary Rock
Greywacke Siltstone Pebble / Concretionary River Pebble
Siltstone / Argillite (Fine-grained Sedimentary Rock)
Sandstone (likely Siltstone or fine-grained Sandstone)
Sedimentary Rock (Clastic)
Sandstone (likely Ferruginous)
Sandstone (SiO2 with iron oxides)
Jasper (Ferruginous Quartz)
Silicon Dioxide (SiO2) with iron oxide inclusions
Sunstone
Plagioclase Feldspar (Na,Ca)(Si,Al)3O8
Likely weathered gray-green stone, possibly serpentinite
Serpentinite (predominantly serpentine-group minerals; identification uncertain from image)
Diorite
Intermediate plutonic igneous rock
Diorite
Plutonic Igneous Rock (Intermediate Composition)
Limestone
Calcium Carbonate (CaCO3)
Sandstone (Ferruginous)
Sandstone (SiO2 with FeO(OH) cementing)
Granite
Granitoid