Sandstone
Arenite (SiO2 dominated sandstone)
Category
Browse carved stone specimens identified by the Rock Identifier community.
Sandstone
Arenite (SiO2 dominated sandstone)
Tiger's Eye
Pseudomorph of quartz after crocidolite (SiO2)
Carnelian Agate
Carnelian (Silicon Dioxide - SiO2)
Chalcedony
SiO2 (Silicon Dioxide)
Granite
Phaneritic Granocrystalline Igneous Rock
Carnelian (Tumbled)
SiO2 (Silicon Dioxide / Chalcedony)
Carnelian
Carnelian (Microcrystalline Quartz, SiO2)
Serpentinite
Serpentine group minerals (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
Serpentine
Antigorite/Lizardite/Chrysotile group, Mg3Si2O5(OH)4
Amazonite
Microcline (KAlSi3O8)
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Howlite
Calcium borosilicate hydroxide (Ca2B5SiO9(OH)5)
Chrysocolla (carved)
Cu2-xAlx(H2-xSi2O5)(OH)4·n(H2O)
Tree Agate
Silicon Dioxide (SiO2) with Chlorite inclusions
Snowflake Obsidian
Volcanic Glass with Cristobalite inclusions (70–75% SiO2)
Tiger's Eye
Titanium-containing Quartz (Silica: SiO2)
Travertine
Terrestrial Sedimentary Form of Calcium Carbonate (CaCO3)
Pink Granite (Potassium-rich Granite)
Phaneritic Felsic Igneous Rock (primarily SiO2, Al2O3, K2O)
Granite
Phaneritic Felsic Igneous Rock (Granite)
Red Jasper
Silicon Dioxide (SiO2)
Carnelian Agate
Carnelian (Silicon Dioxide: SiO2)
Black Veined Jasper (Spiderweb Jasper)
Silicon Dioxide (SiO2)
Unakite
Epidotized Granite
Yellow Jasper
Silicon Dioxide (SiO2) with hydrated iron oxide impurities
Diorite
Diorite
Granite
Phaneritic Igneous Rock (composed primarily of Quartz, Feldspar, and Mica)
Banded Slate Pebble
Metamorphosed Mudstone / Slate
Sodalite
Sodalite (Na8Al6Si6O24Cl2)
Yellow Jasper
Silicon Dioxide (SiO2)
Green Aventurine
SiO2 (Silicon Dioxide with inclusions of Fuchsite mica)
Kambaba Jasper (Crocodile Jasper)
Rhyolite containing Fossilized Cyanobacteria (Stromatolite)
Tiger's Eye (Golden and Blue)
Silicon Dioxide (SiO2) with fibrous inclusions of Crocidolite
Sandstone
Sedimentary Rock (Quartz Sandstone)
Granite
Felsic Plutonic Rock (primarily Quartz, Potassium Feldspar, and Plagioclase)
Malachite
Copper carbonate hydroxide [Cu2CO3(OH)2]
Granite
Intrusive Felsic Igneous Rock
Chevron Amethyst
Silicon Dioxide (SiO2)
Granite
Phaneritic plutonic rock (SiO2 rich)
Red Jasper
Silicon Dioxide (SiO2)
Carnelian
Carnelian (Microcrystalline Quartz, SiO2 with Fe2O3 impurities)
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2 with iron inclusions)
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions