Siltstone/Sandstone (possibly Wonderstone or Picture Sandstone)
Clastic Sedimentary Rock (primarily SiO2 with Iron Oxide inclusions)
Category
Browse anthropogenic material (man made sedimentary mimic) specimens identified by the Rock Identifier community.
Siltstone/Sandstone (possibly Wonderstone or Picture Sandstone)
Clastic Sedimentary Rock (primarily SiO2 with Iron Oxide inclusions)
Chert (varieties: Flint or Jasper)
Microcrystalline Quartz (SiO2)
Chert (specifically River Stone / Jasper variety)
Microcrystalline Quartz (SiO2)
Chert (Flint variety)
Microcrystalline Quartz (SiO2)
Banded Gneiss (with Quartz Vein)
Gneiss (Metamorphic rock of varying mineralogy)
Sandstone (Greywacke/Lithic Sandstone)
Arenite / Lithic Sandstone
Red Jasper
Jasper (Silicon Dioxide, SiO2)
Conglomerate
Conglomerate (Detrital sedimentary rock)
Lapis Lazuli
A metamorphic rock primarily composed of lazurite (Na,Ca)8[(S,SO4,Cl)2|(Al6Si6O24)], calcite (CaCO3), and pyrite (FeS2).
Chert (Flint)
Chert (Silicon Dioxide, SiO2)
Chert (specifically Flint or Gray Chert)
Silicon Dioxide (SiO2)
Chert (Flint)
Microcrystalline Silica (SiO2)
Chert (Flint)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Chert (often called Flint)
Chert (Microcrystalline Silicon Dioxide, SiO2)
Banded Chert / Flint
Silicon dioxide (SiO2)
Chert (variations include Flint)
Chert (Silicon Dioxide, SiO2)
Chert (specifically Blue or Grey Chert/Flint)
Microcrystalline or cryptocrystalline Quartz (SiO2)
Chert (Jasper variety)
Silicon Dioxide (SiO2)
Chert (specifically Yellow Jasper variety)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Chert (containing small fossils)
Chert (Microcrystalline Quartz, SiO2)
Quartz
Quartz (SiO2 - Silicon Dioxide)
Quartzite with Sandstone/Iron staining
Metamorphic Quartzite (SiO2)
Bauxite
Bauxite (Al2O3·2H2O)
Chert (River Pebble)
Microcrystalline Quartz (SiO2)
Chert (specifically Red Chert/Jasper nodule)
Microcrystalline Quartz (SiO2)
Chert (Brown Variety)
Microcrystalline quartz (SiO2)
Sandstone
Quartz Arenite (a type of sandstone composed of more than 90% quartz)
Chert
Silicon dioxide (SiO2)
Pyrite (Iron Pyrites)
Iron Sulfide (FeS2)
Ferruginous Sandstone
Ferruginous Clastic Sedimentary Rock
Chert (with Quartz vein/coating)
Microcrystalline Quartz (SiO2)
Chert (Nodule)
Microcrystalline Quartz (SiO2)
Chert with Iron Staining
Microcrystalline Quartz (SiO2)
Chert (specifically Flint or Jasper variant)
Silicon Dioxide (SiO2)
Petrified Wood
Silicified Wood (primarily SiO2)
Petrified Wood
Silicified Wood (SiO2)
Petrified Wood
Silicified Wood (SiO2)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Chert (Flint Nobule)
Silicon Dioxide (SiO2)
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
Quartz Mica Schist
Mica-Quartz Schist (Chemical: SiO2 + KAl2(AlSi3O10)(OH)2)
Slate
Slate (Foliated Metamorphic Rock)