Serpentine (Serpentinite egg)
Serpentinite / Antigorite-Lizardite rock (Mg3Si2O5(OH)4)
Category
Browse carved stone specimens identified by the Rock Identifier community.
Serpentine (Serpentinite egg)
Serpentinite / Antigorite-Lizardite rock (Mg3Si2O5(OH)4)
Sandstone (likely Quartzose)
Arenite (primarily SiO2)
Granodiorite with Quartz Veining
Granodiorite (containing Plagioclase Feldspar, Quartz, and Biotite/Hornblende) with Quartz (SiO2) veins
Dyed Howlite (often sold as Turquenite)
Calcium Borosilicate Hydroxide (Ca2B5SiO9(OH)5)
Red Jasper
Silicon Dioxide with Iron Oxide impurities (SiO2 + Fe2O3)
Dark quartz point (possibly smoky quartz)
Quartz, SiO₂; the dark color may indicate smoky quartz, but the image is insufficient to confirm
Chiastolite (Andalusite)
Al2SiO5
Granodiorite
Granodiorite (containing Plagioclase, Quartz, and K-feldspar)
Carved quartz (likely rose quartz and green aventurine/quartz)
Quartz, silicon dioxide (SiO₂); green material may be aventurine quartz or serpentine
Granite
Phaneritic plutonic rock (primarily Quartz, Feldspar, and Mica)
Serpentine
Serpentine group ((Mg,Fe,Ni,Al,Zn,Mn)3(Si,Al)2O5(OH)4)
Granite
Granite
Ruby in Zoisite
Anyolite (composite of Corundum and Zoisite)
Red Sandstone
Arenite (with Iron Oxide)
Jet
Lignite (Precursor organic rock)
Chrysocolla (Carved Egg)
Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O (often intergrown with quartz, malachite, or chalcedony)
Red Jasper
SiO2, Chalcedony with iron inclusions
Unakite pebble
Unakite; epidote–feldspar (pink orthoclase) granitoid
Diorite
Plutonic Igneous Rock (Intermediate Composition)
Chevron Amethyst
Quartz (Silicon Dioxide, SiO2)
Agate
Silica (Chalcedony), SiO2
Green Onyx
Banding calcite (CaCO3)
Clear Quartz
Silicon Dioxide (SiO2)
Rhodochrosite
Manganese Carbonate (MnCO3)
Adventurine (Green Quartz)
Silicon Dioxide (SiO2) with Fuchsite inclusions
Sandstone
Clastic Sedimentary Rock
Serpentine (Serpentinite / Lizardite)
Serpentine-group mineral / Serpentinite (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4
Chert with Desert Varnish
Cryptocrystalline Quartz (SiO2) with Manganese/Iron oxide coating
Yellow Jasper
Jasper (SiO2) with iron hydroxide inclusions
Amazonite
Microcline Feldspar (KAlSi3O8)
Carnelian
Silicon Dioxide (Variety of Chalcedony, SiO2)
Stromatolite
Biogenic sedimentary rock / Calcium carbonate
Strawberry Quartz (Aventurine Quartz)
Silicon dioxide with hematite/goethite inclusions (SiO2)
Carnelian (Chalcedony Pebble)
Silicon Dioxide (SiO2 with iron impurities)
Agate (Beads and Pebble)
Banded Chalcedony (SiO2)
Carnelian
Silicon dioxide (Chalcedony variety, SiO2)
Green Aventurine
Quartz with Fuchsite inclusions (SiO2)
Quartzite Pebble
Metamorphic Quartzite
Yellow Aventurine
Quartz with inclusion minerals (SiO2)
Carved red jasper bead (likely ceramic imitation)
Jasper, microcrystalline quartz (SiO₂); exact material uncertain from the image
Granite
Granite (Alkali feldspar, Plagioclase feldspar, and Quartz)
Unakite Mushroom Carving
Altered Granite (Epidote, Pink Orthoclase Feldspar, and Quartz)