Siltstone Pebble
Siltstone (composed of siliciclastic grains)
Category
Browse synthetic polymer (synthetic material) specimens identified by the Rock Identifier community.
Siltstone Pebble
Siltstone (composed of siliciclastic grains)
Sandstone
Arenite (SiO2 principal)
Sandstone (Ferruginous)
Arenite with Iron Oxide cement
Sandstone
Arenite (Siliclastic sedimentary rock)
Sandstone (Quartzose Sandstone)
Clastic Sedimentary Rock (composed mostly of SiO2)
Pink Rhyolite
Rhyolite (High-silica volcanic rock)
Milky Quartz Pebble
Silicon Dioxide (SiO2)
Light Green Quartzite
Metamorphosed Quartz Sandstone (SiO2 with chlorite or mica inclusions)
Sandstone (Red)
Arenite (primarily SiO2 with Fe2O3)
Sandstone
Arenite
Sandstone
Arenite (SiO2 primarily)
Sunstone (Aventurine Feldspar)
(Ca,Na)((Al,Si)2Si2O8) with inclusions of Cu or Fe2O3
Sandstone (Quartzose)
Arenite (primarily SiO2)
Sandstone
Arenite (SiO2 based typically)
Granite Pebble (Salt and Pepper Granite)
Phaneritic Felsic Igneous Rock (primarily Quartz, Feldspar, and Biotite/Amphibole)
Sandstone
Arenite (SiO2 primarily)
Sandstone (Quartzose)
Arenite (primarily SiO2)
Coquina / Fossiliferous Limestone
Bioclastic Limestone (CaCO3)
Sandstone (Quartzose Sandstone)
Sandstone (SiO2 with various trace minerals)
Red Sandstone
Arenite (composed primarily of Quartz and Iron Oxide)
Olivine (Peridot)
Magnesium Iron Silicate (Mg, Fe)2SiO4
Sandstone (Quartzose Sandstone)
Clastic sedimentary rock (SiO2 major component)
Sandstone
Arenite (SiO2 based)
Quartzite pebble
Metamorphic rock (mainly SiO2)
Sunstone
Oligoclase or Andesine (Feldspar Group), (Ca,Na)((Al,Si)4O8)
Sandstone (Ferruginous)
Ferruginous Sandstone (SiO2 with Fe2O3)
Sandstone
Arenite (composed primarily of SiO2)
Puddingstone
Conglomerate
Quartzite Pebble
Quartzite (mostly SiO2)
Orange Quartz with Epidote
Silicon Dioxide (SiO2) with Calcium Aluminum Iron Silicate hydroxide (Ca2(Al2,Fe)(SiO4)(Si2O7)O(OH))
Jasper
Silicon dioxide (SiO2) with impurities
Sandstone
Arenite (SiO2 based)
Crazy Lace Agate
Microcrystalline Quartz (SiO2)
Sandstone (Calcareous or Ferruginous)
Clastic sedimentary rock (SiO2 with CaCO3 or Fe2O3 cement)
Limestone
Calcareous sedimentary rock (primarily Calcium Carbonate, CaCO3)
Sandstone
Arenite (typically SiO2 + others)
Quartzite
Quartzite (predominantly SiO2)
Quartzite
Quartzite (primarily SiO2)
Sandstone (Quartzose)
Arenite (primarily SiO2)
River Pebble (Quartz-rich)
Silicon Dioxide (SiO2) with various inclusions
Sandstone
Arenite (composed primarily of SiO2)
Sandstone (Greywacke/Lithic Sandstone)
Clastic Sedimentary Rock (Lithic Sandstone)