Carnelian
Quartz (SiO2, variety carnelian)
Category
Browse carved stone specimens identified by the Rock Identifier community.
Carnelian
Quartz (SiO2, variety carnelian)
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Yellow Jasper
Silicon Dioxide (SiO2)
Sandstone
Arenite (SiO2 based)
Carnelian
SiO2 (Silicon Dioxide) with Ferric Oxide inclusions
Granite
Phaneritic plutonic igneous rock (SiO2 range 65-75%)
Granite
Phaneritic Plutonic Rock (Granite)
Red Jasper
Silicon Dioxide (SiO2) - Opaque microcrystalline quartz
White Quartz (Carved or Tumbled)
Silicon Dioxide (SiO2)
Diorite (River Cobble)
Intermediate plutonic igneous rock
Granite
Granitoid (SiO2 typically > 69%)
Red Jasper
Microcrystalline Quartz (SiO2) with iron impurities
Carnelian
Silicon Dioxide (Variety of Chalcedony, SiO2)
Pink Quartz
Silicon Dioxide (SiO2)
Banding Onyx Marble
Calcite / Travertine
Agate
SiO2 (Silicon dioxide, cryptocrystalline quartz)
Bloodstone
Heliotrope
Red Tiger's Eye
SiO2 (Silicon Dioxide with iron inclusions)
Sandstone
Quartz Arenite / Clastic Sedimentary Rock
Petrified Wood
Silicified Wood (primarily SiO2)
Onyx
Silicon Dioxide (Chalcedony), SiO2
Black Onyx
Silicon Dioxide (SiO2)
Green Aventurine
SiO2 (Quartz with Fuchsite inclusions)
Green Aventurine
Silicon Dioxide with Fuchsite (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Black Onyx
Silicon Dioxide (SiO2) with parallel banding
Sandstone
Arenite (SiO2 primarily)
Rose Quartz
Silicon dioxide (SiO2)
Sandstone (likely Quartz Sandstone)
Arenite (SiO2 based)
Diorite
Diorite (Intermediate intrusive igneous rock)
Carved nephrite jade thumb ring/seal
Nephrite jade: fibrous amphibole aggregate, chiefly tremolite–actinolite, Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂
Unakite
Unakite (Epidotized Granite)
Red Jasper
Jasper (Silicon Dioxide with Iron Oxide inclusions), SiO2 + Fe2O3
Unakite
Altered Granite (Epidotized Granite)
Red Sandstone
Clastic Sedimentary Rock
Greenstone (Greenschist)
Greenschist facies rock (containing chlorite, epidote, actinolite)
Petoskey Stone
Hexagonaria percarinata
Calligraphy Stone
Mariam Jasper (Fossiliferous Limestone composed of Hematite and Shell remains)
Tumbled serpentine (likely green calcite or aventurine alternative)
Serpentine-group minerals, commonly antigorite/lizardite; approximate formula Mg₃Si₂O₅(OH)₄
Malachite
Copper Carbonate Hydroxide, Cu2CO3(OH)2
Tumbled green stone, possibly serpentine
Likely serpentine-group rock (mainly serpentine minerals; identification uncertain from the image)
Precious Coral (Angel Skin Coral) with Jade
Calcium carbonate (CaCO3, mostly calcite) with Jadeite/Nephrite