Sandstone (Red)
Arenite (primarily Quartz, SiO2, with Iron Oxide cement)
Category
Browse man made material (anthro lithic product) specimens identified by the Rock Identifier community.
Sandstone (Red)
Arenite (primarily Quartz, SiO2, with Iron Oxide cement)
Kyanite
Kyanite (Al2SiO5)
Sandstone
Arenite (composed primarily of Quartz, SiO2)
Sandstone
Arenite (primarily SiO2)
Sandstone
Arenite (composed primarily of SiO2)
Sandstone (specifically Red Sandstone)
Arenite (primarily Quartz, SiO2)
Sandstone (likely Quartz Sandstone)
Arenite (SiO2 based)
Sandstone (with minor quartz and possible clay components)
Clastic Sedimentary Rock (SiO2 dominated)
Sandstone (with Iron Staining)
Clastic sedimentary rock (primarily SiO2)
Sandstone
Arenite (primarily SiO2)
Sandstone
Arenite (primarily SiO2 - Silicon Dioxide)
Sandstone (Ferruginous)
Arenite (with iron oxide cement, Fe2O3)
Milky Quartz
Silicon Dioxide (SiO2)
Sandstone
Arenite (SiO2 based)
Sandstone (Quartzose Sandstone)
Arenite (SiO2)
Limestone
Calcium Carbonate (CaCO3)
Sandstone (with Iron Staining)
Clastic sedimentary rock (primarily SiO2)
Moss Agate
Chalcedony (Silicon Dioxide - SiO2) with inclusions
Chert (Pebble)
Microcrystalline silica (SiO2)
Rhodonite (in matrix)
Rhodonite (Mn,Fe,Mg,Ca)SiO3
Sandstone
Arenite
Fluorite (Rainbow Fluorite)
Calcium Fluoride (CaF2)
Rough Diamond
Diamond (C)
Green Fluorite (Fluorite Sphere)
Calcium Fluoride (CaF2)
Diamond (or Diamond Simulant)
Carbon (C) - Native Element
Scoria (Basaltic Lava Rock)
Vesicular Basalt
Serpentine (Serpentinite)
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
Chert
Microcrystalline Quartz (SiO2)
Chert (Green variety)
Silicon Dioxide (SiO2)
Quartz (Milky Quartz pebble)
Silicon Dioxide (SiO2)
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Peridot (Olivine)
Magnesium Iron Silicate (Mg,Fe)2SiO4
Chert / Flint
Chert (varietal name for microcrystalline quartz). Chemical formula: SiO₂
Sandstone (with potential trace fossils)
Clastic sedimentary rock (primarily SiO2)
Diamond
C (Carbon)
Limonite (Iron Ore)
Limonite (Hydrated Iron Oxide, FeO(OH)·nH2O)
Vesicular Basalt (Scoria)
Extrusive Mafic Volcanic Rock (FeO-SiO2-MgO)
Oolitic Limestone
Oolitic Limestone (Calcium Carbonate, CaCO3)
Diamond
Carbon (C)
Fluorite (Purple Octahedron)
Calcium Fluoride (CaF2)
Jasper
Jasper (Silica-rich microcrystalline Quartz, SiO2 with Fe2O3 impurities)