Titanium Aura Quartz
Titanium-coated Silicon Dioxide (SiO2)
Category
Browse sedimentary (man made conglomerate) specimens identified by the Rock Identifier community.
Titanium Aura Quartz
Titanium-coated Silicon Dioxide (SiO2)
Titanium Coated Aura Quartz (Apple Aura Quartz)
Silicon Dioxide (SiO2) with Metallic Vapor Deposition Coating
Jade (likely Nephrite Jade based on appearance)
Nephrite (a variety of actinolite, Ca2(Mg,Fe)5Si8O22(OH)2)
Cullet Glass (Industrial Slag Glass)
Amorphous Silica (SiO2) with metallic oxide impurities
Obsidian
Obsidian (volcanic glass)
Glazed Ceramic Tile
Fused Silicate-Clay composite
Basalt
Basalt
Granite
Granite (a common rock name, not a single mineral species, composed primarily of quartz, feldspar, and mica/amphibole)
Smoky Quartz
Smoky Quartz (SiO2)
Veined Pebble (likely a Quartz-Veined Pebble)
Pebble with Mineral Vein (e.g., Quartz Vein in a Chert/Mudstone Pebble)
White Jade (Nephrite)
Nephrite, Ca2(Mg,Fe)5Si8O22(OH)2
Lapis Lazuli
Lapis Lazuli (a rock type, not a single mineral, composed primarily of lazurite, calcite, and pyrite)
Rose Quartz (likely carved)
Rose Quartz (SiO2)
Rose Quartz Carving
Quartum roseum (Variety of Quartz, SiO2)
Sandstone or Siltstone
Arenite (if sandstone)
Sandstone
Arenite (primarily SiO2)
Garnet Beads
Garnet Group (complex nesosilicates, e.g., Almandine Fe3Al2(SiO4)3)
Gold
Aurum (Au)
Jade (Nephrite or Jadeite)
Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2) or Jadeite (Na(Al,Fe3+)Si2O6)
Shale or Slaty Mudstone
Argillaceous sedimentary rock
Chert Breccia
Brecciated Chert (Microcrystalline Silica)
Shale (Ferruginous)
Laminated Mudrock (Siliciclastic Sedimentary Rock)
Shale
Shale (Consolidated fine-grained clay/silt)
Gold (Elemental Metal)
Gold (Au)
Sandstone (Quartz-rich)
Arenite (SiO2)
Lapis Lazuli
A metamorphic rock primarily composed of lazurite (Na,Ca)8[(S,SO4,Cl)2|(Al6Si6O24)], calcite (CaCO3), and pyrite (FeS2).
Sandstone
Arenite (primarily composed of SiO2)
Brown Sandstone
Arenite (primarily Quartz and Feldspar, with Iron Oxide cement)
Sandstone (Quartz Sandstone)
Arenite (primarily SiO2)
Sandstone (Ferruginous)
Arenite (Fe-oxide cemented)
Sandstone (Ferruginous)
Clastic Sedimentary Rock (SiO2 with Fe2O3/FeOOH cement)
Shale (Beach-worn)
Laminated Pelite (primarily clay minerals and quartz)
Shale
Fissile mudstone (rich in clay minerals and quartz)
Pebble (likely Quartz or Chert)
SiO₂ (Silicon Dioxide) - referring to the likely main mineral composition, Quartz. If it's chert, the scientific name remains SiO₂ with a microcrystalline structure.
Sandstone (Picture Sandstone)
Arenite (primarily SiO2)
Sandstone
Arenite (primarily SiO2)
Mudstone
Lutylite (group of fine-grained sedimentary rocks)
Sandstone (Quartzite-rich)
Clastic sedimentary rock (SiO2 primary)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Sandstone
Arenite
Ferruginous Sandstone
Arenite with Iron-Oxide cement (Fe2O3 · nH2O)
Shale
Lutaceous sedimentary rock