Green Aventurine
Aventurine Quartz (SiO2 + Fuchsite inclusions)
Category
Browse carved stone specimens identified by the Rock Identifier community.
Green Aventurine
Aventurine Quartz (SiO2 + Fuchsite inclusions)
Labradorite
Labradorite ((Ca, Na)(Al, Si)4O8)
Howlite
Howlite (Calcium Borosilicate Hydroxide: Ca2B5SiO9(OH)5)
Carnelian
Carnelian (Red Chalcedony), SiO2 (Silicon Dioxide with iron oxide impurities)
Sandstone (Picture Sandstone)
Arenite (primarily SiO2)
Yellow Jasper
Silicon Dioxide (SiO2) with Iron Hydroxide impurities
Chalcedony Pebble
Silicon Dioxide (SiO2)
Specular Hematite (Specularite)
Hematite (Fe2O3)
Obsidian (likely mahogany or black obsidian)
Volcanic glass; chiefly amorphous SiO₂-rich rhyolitic composition
Milky Quartz
Silicon Dioxide (SiO2)
Rose Quartz
Silicon dioxide / Quartz (SiO2)
Obsidian (Black Obsidian)
Obsidian (Volcanic Glass)
Carnelian
Carnelian (a variety of Chalcedony) - SiO2
Orange Calcite
Calcium Carbonate (CaCO3)
Gold Sheen Obsidian
Obsidian (volcanic glass with SiO2 + gas inclusions)
Black Obsidian
Volcanic Glass (Amorphous Silicon Dioxide)
Carnelian (Red Chalcedony)
Silicon Dioxide (SiO2) - variety of Chalcedony
Green Quartzite (Aventurine-like)
Quartzite (primarily SiO2 with chromium-rich mica or chlorite inclusions)
Jasper
Microcrystalline Quartz (SiO2)
Pink Rhodonite
Manganese Silicate (MnSiO3)
Nephrite Jade
Ca2(Mg, Fe)5Si8O22(OH)2 (Actinolite/Tremolite series)
Mookaite Jasper
Radiolarite (Silica, SiO2)
Nephrite Jade
Ca2(Mg, Fe)5Si8O22(OH)2 (Tremolite-Actinolite series)
Rose Quartz
SiO2 (Silicon Dioxide)
Carnelian Agate
Chalcedony (Silicon Dioxide, SiO2)
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
Fire Agate
Silicon Dioxide (SiO2) with layers of Limonite/Goethite
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
Serpentine with Quartz Vein
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4 with SiO2 veins
Sandstone
Clastic Sedimentary Rock
Libyan Desert Glass
Tektite (high-silica impact glass), SiO2
Sandstone
Clastic Sedimentary Rock (primarily SiO2)
Sandstone
Arenite (predominantly SiO2 quartz grains)
Red Jasper
Silicon dioxide (SiO2) with hematite impurities
Ocean Jasper (Orbicular Jasper)
Orbicular Rhyolite (SiO2)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Marble (Sculpted Statue)
Metamorphic Limestone (composed primarily of Calcite, CaCO3)
Carnelian
Carnelian (Cryptocrystalline Quartz, SiO2)
Satin Spar (often sold as Selenite)
Gypsum (Calcium Sulfate Dihydrate, CaSO4·2H2O)
Carnelian (Tumbled Pebble)
Quartz (Variety: Carnelian, SiO2)
Sandstone (likely Arkosic or Quartzose)
Sandstone (SiO2 dominated)
Sandstone
Arenite