Sandstone
Arenite (primarily SiO2)
sedimentary
Category
Man Made Rock Like Material
Browse man made rock like material specimens identified by the Rock Identifier community.
Laterite
Laterite (Ferricrete)
sedimentary
Ocean Jasper
Orbicular Jasper (Silicon Dioxide with impurities), SiO2
mineral
Granitoid (Granitic Rock)
Granitoid (Quartzo-feldspathic plutonic rock)
igneous
Sandstone with Tafoni Weathering
Arenite (SiO2 based)
sedimentary
Sandstone (specifically Lithic or Quartz Arenite)
Arenite (composed primarily of SiO2)
sedimentary
Sandstone
Arenite (primarily SiO2)
sedimentary
Banded Sandstone (Wonderstone)
Sandstone with Liesegang Rings (SiO2 with Iron Oxides)
sedimentary
Synthetic Wolf Plush (Non-mineral)
Canis lupus similis (Prop material: Polyester & Synthetic fibers)
Synthetic material/Textile
Sandstone (likely Ferruginous)
Arenite (SiO2 based with Fe2O3/FeO(OH) cement)
sedimentary
Diorite (River Pebble)
Intermediate plutonic igneous rock
igneous
Slate
Slate (Foliated Metamorphic Rock)
metamorphic
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Chert (often called Flint in various colors)
Silicon Dioxide (SiO2)
sedimentary
Chert / Flint
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Chert (often called Flint in dark varieties)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Chert (Jasper variety)
Silicon Dioxide (SiO2)
sedimentary
Chert (containing Quartz)
Microcrystalline Silica (SiO2)
sedimentary
Granite Cobble
Phaneritic Felsic Igneous Rock
igneous
Banded Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Chert / Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Orthoclase Feldspar
Orthoclase (KAlSi3O8)
mineral
Sandstone (Water-worn Cobble)
Arenite (variable composition, primarily SiO2)
sedimentary
Serpentinite
Serpentinite (composed primarily of serpentine-group minerals like antigorite, chrysotile, and lizardite; chemical formula varies but generally Mg3Si2O5(OH)4)
Metamorphic Rock
Chert / Flint Nodules in Sandstone
Microcrystalline Quartz (SiO2) within Clastic Sedimentary Rock
sedimentary
Fossilized Bone Fragment
Permineralized Vertebrate Fossil (Hydroxyapatite replaced by Minerals)
sedimentary
Red Sandstone
Clastic Terrigenous Sedimentary Rock (primarily SiO2 with Fe2O3 coating)
sedimentary
Coral Fossil (Petrified Coral)
Scleractinia (Order) - Calcified Fossil Skeleton (CaCO3)
sedimentary
Diorite
Diorite (Intermediate intrusive igneous rock)
igneous
Jasper (Red Jasper)
Silicon Dioxide (SiO₂)
sedimentary
Siltstone or Mudstone
Argillaceous sedimentary rock
sedimentary
Sandstone (Iron-stained)
Clastic sedimentary rock (SiO2 with Fe2O3 staining)
sedimentary
Granite
Phaneritic intrusive igneous rock (consisting mainly of Quartz, Alkali Feldspar, and Plagioclase)
igneous
Quartzite
Quartzite (primarily SiO2)
metamorphic
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Sandstone (Quartzose Sandstone)
Clastic Sedimentary Rock (primarily SiO2)
sedimentary
Sandstone (with Liesegang rings or Oxidation)
Arenite (primarily Quartz SiO2 with Iron Oxide Fe2O3 staining)
sedimentary
Coquina
Biogenic Limestone (CaCO3)
sedimentary
Granodiorite (containing Biotite and Quartz)
Granodiorite (Plagioclase-rich phaneritic intrusive rock)
igneous
Mica Schist
Mica Schist (primarily Muscovite and Biotite KAl2(AlSi3O10)(OH)2)
metamorphic
Petrified Wood
Silicified Wood (primarily SiO2)
sedimentary
Sandstone
Arenite
sedimentary