Mahogany Obsidian
Volcanic Glass (SiO2 with Fe/Mg oxides)
igneous
Category
Carved Stone
Browse carved stone specimens identified by the Rock Identifier community.
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Milky Quartz (Carved Star Beads)
Silicon Dioxide (SiO2)
mineral
Polished Hematite Tower
Hematite (Fe2O3)
mineral
Black Onyx
Chalcedony (Silicon Dioxide - SiO2)
mineral
Yellow Jasper
Chalcedony (SiO2 with iron oxide inclusions)
sedimentary
Hematite
Iron(III) oxide (Fe2O3)
mineral
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
gemstone
Green Jasper
Silicon Dioxide (SiO2) with iron silicate inclusions
sedimentary
Jasper (Brown Iron-Rich Variety)
Silicon Dioxide (SiO2) with Fe2O3 (Iron Oxide/Crystalline Quartz)
sedimentary
Serpentine
Antigorite/Lizardite (Mg,Fe)3Si2O5(OH)4
metamorphic
Yellow Jasper
Silicon Dioxide (SiO2) with Goethite or Limonite inclusions
sedimentary
Snowflake Obsidian
Volcanic Glass with Cristobalite inclusions (SiO2)
igneous
Rose Quartz
Silicon Dioxide (SiO2)
mineral
Bloodstone
Chalcedony (cryptocrystalline quartz)
Mineral/Semiprecious Stone
Unakite
Unakite (Epidotized Granite)
metamorphic
Red Sandstone
Arenite (with Iron Oxide / Hematite cementation)
sedimentary
Nephrite Jade
Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2)
metamorphic
Kambaba Jasper (Crocodile Jasper)
Stromatolite (Fossilized Algae within Microcrystalline Quartz), SiO2
sedimentary
Pink Granite
Granite (Phaneritic Felsic Igneous Rock)
igneous
Sandstone
Clastic Sedimentary Rock (composed mostly of quartz and/or feldspar)
sedimentary
Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Red Jasper (Skull Carving)
Jasper (Silicon Dioxide, SiO2 plus Iron Oxide inclusions)
sedimentary
Green Aventurine
Quartz (SiO2) containing Fuchsite (K(Al,Cr)2(AlSi3O10)(OH)2)
metamorphic
Red Sandstone
Arenite (Iron-rich Sandstone)
sedimentary
Dragon Blood Jasper (Lizard Stone/Septarian Chalcedony)
Epidote with Black Hornblende and White Quartz mixture
metamorphic
Diorite (or Gabbro/Greenschist pebble)
Diorite (Plagioclase Feldspar with Hornblende/Biotite)
igneous
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
metamorphic
Basalt
Basalt (Aphanitic Mafic Volcanic Rock)
igneous
Diorite
Phaneritic Intermediate Plutonic Rock (Diorite)
igneous
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Dalmatian Jasper
Peralkaline Quartz-Feldspar Rock with Arfvedsonite
igneous
Carnelian
SiO2 (Silicon Dioxide - Chalcedony variant)
gemstone
Obsidian
Obsidian (Volcanic Glass, SiO2 + impurity)
igneous
Carnelian
Silicon dioxide (SiO2)
mineral
Banded Calcite (Tumbled)
Calcium Carbonate (CaCO3)
Mineral
Peach Moonstone
Potassium Aluminum Silicate, KAlSi3O8
mineral
Green Aventurine
Silicon Dioxide with Fuchsite inclusions (SiO2 + K(Al,Cr)2(AlSi3O10)(OH)2)
metamorphic
Serpentine (Serpentinite)
Serpentinite (complex of minerals including Antigorite, Lizardite, and Chrysotile); (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4
metamorphic
Yellow Jasper
Silicon Dioxide (SiO2) with Goethite or Iron Oxide inclusions
sedimentary
Clear Quartz (Tumbled)
Silicon Dioxide (SiO2)
mineral
Sodalite
Sodalite (Na8Al6Si6O24Cl2)
mineral
Sandstone (Water-worn pebble)
Sedimentary Rock (Quartz arenite)
sedimentary