Granite
Granite (Silicic Plutonic Rock)
Category
Browse carved stone specimens identified by the Rock Identifier community.
Granite
Granite (Silicic Plutonic Rock)
Red Jasper
Silicon Dioxide (SiO2)
Granite
Phaneritic Felsic Igneous Rock
Sandstone (likely Quartzose Sandstone)
Arenite (SiO2 principal composition)
Chert (Arrowheads)
Microcrystalline Quartz (SiO2)
Diorite with Quartz Veins
Diorite
Pink Granite
Phaneritic Plutonic Felsic Rock (Granite)
Sandstone (Ferruginous)
Arenite (primarily SiO2 with iron oxide Fe2O3 cement)
Sandstone
Sedimentary Rock (Quartzose Sandstone)
Polished Yellow Jaspar
Chalcedony / Quartz (SiO2 with Iron Oxides)
Opalite
Synthetic glass / Opalized glass
Unakite
Altered Granite (composed of orthoclase feldspar, epidote, and quartz)
Jasper
Microcrystalline Quartz (SiO2)
Red Aventurine
Quartz containing Hematite or Goethite (SiO2)
Opalite
Man-made opalescent glass
Anthracite Coal
Anthracite
Anyolite (Ruby in Zoisite)
Metamorphic rock composed primarily of green Zoisite (Ca2Al3(Si2O7)(SiO4)O(OH)), red Ruby (Al2O3:Cr), and black Tschermakite
Rhodonite
Inosilicate (Manganese Iron Magnesium Calcium Silicate, (Mn,Fe,Mg,Ca)SiO3)
Unakite
Granite composed of pink orthoclase feldspar, green epidote, and colorless quartz
Greenschist / Serpentinite
Metamorphic rock rich in chlorite/actinolite/serpentine
Moss Agate
Silicon Dioxide (SiO2) with inclusions
Sandstone
Clastic sedimentary rock (primarily SiO2)
Granite
Granite (Mainly Quartz SiO2 and Feldspar KAlSi3O8)
Blue Goldstone
Man-made glass with cobalt and metal flecks
Adventurine (Green Quartz)
Silicon Dioxide (SiO2) with Fuchsite inclusions
Diorite
Diorite
Yellow Jasper
Jasper (SiO2) with iron hydroxide inclusions
Oolitic Limestone
Oolite (Sedimentary Calcium Carbonate)
Granite
Phaneritic plutonic igneous rock (Sialic)
Sandstone
Clastic Sedimentary Rock
Red Jasper
Silicon Dioxide (SiO2) - Opaque microcrystalline quartz
Sandstone
SiO2 (predominantly quartz sand)
Quartzite
Metamorphic Quartzite (SiO2)
Diorite
Diorite
Granite
Phaneritic Felsic Igneous Rock (primarily Quartz, Feldspar, and Mica)
Sandstone (Quartz-rich)
Arenite (SiO2)
Sandstone
Arenite
Diorite
Phaneritic Intrusive Igneous Rock (Intermediate Composition)
Sandstone
Arenite
Pink Granite
Granite (Phaneritic igneous rock)
Red Sandstone
Arenite (with Iron Oxide)
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)3Si2O5(OH)4