Sandstone Pebble
Arenite
Category
Browse synthetic polymer (synthetic material) specimens identified by the Rock Identifier community.
Sandstone Pebble
Arenite
Sandstone
Arenite (specifically Quartz Arenite)
Quartzite Pebble
Metamorphic Quartzite (SiO2)
Sandstone
Arenite (clastic sedimentary rock)
Quartzite Pebble
Quartzite (SiO2)
Granite
Granite (Phaneritic intrusive igneous rock)
Sandstone (Weathered)
Arenite (typically SiO2 as quartz grains)
Red Quartzite Pebble
Quartzite (SiO2)
Sandstone (likely Ferruginous)
Arenite with Iron Oxide cement
Quartzite pebble
Quartzite (primarily SiO2)
Fossiliferous Limestone
Carbonate sedimentary rock (CaCO3) with bioclasts
Peridot (Olivine)
Olivine ((Mg, Fe)2SiO4)
Sandstone
Arenite (Sandstone)
Sandstone
Arenite (composed primarily of SiO2)
Greenstone / Greenschist
Greenschist facies metamorphic rock
Sandstone
Arenite (SiO2 primarily)
Sandstone
Arenite (predominantly SiO2)
Chert Nodules
Chert (Silicon Dioxide, SiO2)
Basalt Pebble
Basalt (Mafic volcanic rock)
Amber
Succinite (C10H16O)
Quartzite
Quartzite (primarily SiO2)
Sandstone
Arenite (SiO2 principal component)
Sandstone (Red)
Arenite (primarily Quartz, SiO2, with Iron Oxide cement)
Copper-bearing Quartz (with Malachite and Iron Oxides)
Quartz (SiO2) with Malachite (Cu2CO3(OH)2) and Hematite/Limonite (Fe2O3)
Geode or Concretion
Silica-filled nodule (likely SiO2)
Sandstone/Quartzite
Sedimentary Rock (composed mainly of SiO2)
Chert
Chert (SiO2)
Chalk
Calcium Carbonate (CaCO3) - Biogenic Limestone
Gneiss (Banded Gneiss)
Gneiss
Sandstone
Arenite (composed primarily of SiO2)
Sandstone (Picture Sandstone)
Arenite (primarily SiO2)
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)3(Si, Al, Fe)2O5(OH)4
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Sandstone
Arenite (composed primarily of Quartz, SiO2)
Basalt
Basalt (Aphanitic Mafic Igneous Rock)
Pink Granite
Phaneritic Igneous Rock (high K-feldspar content)
Biotite on Matrix
Biotite (K(Mg,Fe)3AlSi3O10(F,OH)2)
Eudialyte
Na15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
Limestone
Calcium Carbonate (CaCO3)
Conglomerate
Clastic Sedimentary Conglomerate (SiO2 based clasts in matrix)
Jasper with Epidote
Silicon Dioxide (SiO2) with Calcium Aluminum Iron Sorosilicate [Ca2Al2Fe3+Si3O12(OH)]
Quartzite
Quartzite (chiefly SiO2)