Carnelian Agate
Silicon dioxide (SiO2) with iron impurities
Category
Browse carved stone specimens identified by the Rock Identifier community.
Carnelian Agate
Silicon dioxide (SiO2) with iron impurities
Petrified Wood
Silicified Wood (SiO2)
Opalite
Synthetic Opalite Glass / Opalized Glass
Labradorite
Labradorite, a plagioclase feldspar: approximately (Ca,Na)(Al,Si)₄O₈
Greenstone (likely chlorite-rich metamorphic rock)
Chlorite-rich greenschist; exact identification requires testing
Red Jasper
Silicon Dioxide (Microcrystalline Quartz, SiO2)
Chrysanthemum Stone
Limestone with Celestine or Andalusite inclusions
Serpentine
Serpentine group minerals (Mg3Si2O5(OH)4)
Dalmatian Stone
Dalmatian Stone (formerly called Dalmatian Jasper)
Jasper
Microcrystalline Quartz (SiO2)
Tuff
Volcanic Tuff
Opalite
Man-made synthetic glass with opalescent effects (SiO2 + metal oxides)
Sandstone
Sedimentary Rock (Quartz arenite)
Granite
Intrusive igneous rock (SiO2 rich)
Banded Pebble (Banded Argillite / Siltstone)
Laminated mudstone / argillite (predominantly SiO2 and clay minerals)
Green jade-like cabochon pendant
Possibly nephrite (fine-grained tremolite–actinolite); the photo alone cannot confirm the material
Jasper Pendant
Silicon dioxide (SiO2) with impurities
Green Aventurine
Quartz with Fuchsite inclusions (SiO2)
Red Jasper
Microcrystalline Quartz (SiO2)
Carnelian
SiO2 (variety of Chalcedony)
Unakite
Altered Granite (Epidote, Orthoclase Feldspar, and Quartz)
Green Quartz / Prasiolite
Silicon Dioxide (SiO2)
Red Jasper
SiO2 (Silicon Dioxide with Iron Oxide inclusions)
Soapstone
Steatite
Jasper
Chalcedony (Microcrystalline Quartz) - SiO2
Granite
Granite (composed mainly of Quartz, Potassium Feldspar, Plagioclase, and Biotite/Mica)
Granite
Granite (Phaneritic Igneous Rock)
Granite
Granite (composed primarily of Quartz, Feldspar, and Mica)
Granite
Granite (Phaneritic igneous rock)
Brecciated Jasper
Silicon Dioxide (SiO2) with Hematite impurities
Granite
Granite (Felsic Plutonic Rock)
Red Jasper
Silicon Dioxide with Iron Oxide inclusions (SiO2)
Granite
Granite (Felsic Plutonic Rock)
Granite
Granite (Phaneritic Igneous Rock; primarily Quartz, Alkali Feldspar, and Plagioclase)
Agate
Silicon Dioxide (Chalcedony), SiO2
Limestone
Calcium Carbonate (CaCO3)
Fluorite
Calcium Fluoride (CaF2)
Green Aventurine
Quartz variety (SiO2) with fuchsite inclusions
Granodiorite / Granite
Granodiorite (containing Quartz SiO2, Plagioclase Feldspar, and Biotite)
Granite
Granite (Phaneritic Igneous Rock)
Diorite
Diorite
K2 Stone
Azurite in Granite