Sandstone
Sedimentary Rock (Quartz Sandstone)
sedimentary
Category
Synthetic Material (Not A Rock Or Mineral)
Browse synthetic material (not a rock or mineral) specimens identified by the Rock Identifier community.
Learn about Synthetic Material (Not A Rock Or Mineral) in the encyclopedia
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Jasper and Quartz Breccia
Silicified Breccia (SiO2)
sedimentary
Sandstone (Ferruginous)
Arenite (SiO2 with iron oxide impurities)
sedimentary
Silicon
Element Si
mineral
Sandstone (Quartz-rich)
Arenite
sedimentary
Sandstone (Calcareous)
Clastic sedimentary rock (primarily SiO2 with CaCO3 cement)
sedimentary
Sandstone
Sandstone (SiO2 dominant, with minor feldspar and clay minerals)
sedimentary
Emerald
Beryl (Be₃Al₂Si₆Oထ₈) with Chromium/Vanadium impurities
gemstone
Sandstone (specifically Banded Sandstone)
Clastic sedimentary rock (primarily SiO2)
sedimentary
Sandstone Pebble (River Rock)
Arenite (primarily SiO2)
sedimentary
Quartz Vein in Hematitic Siltstone
Hydrothermal Quartz (SiO2) in Ferriferous Matrix
metamorphic
Sandstone
Sedimentary Rock (Quartzose Sandstone)
sedimentary
Banded Jasper
Silicate Mineral (Microcrystalline Quartz / SiO2)
sedimentary
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Limonite (Iron Ore)
FeO(OH)·nH2O
mineral
Sandstone
Clastic sedimentary rock composed mainly of quartz sand
sedimentary
Fossilized Shell
Invertebrate fossil (Bivalvia or Brachiopoda)
fossil
Tumbled banded metamorphic stone
Likely banded gneiss or migmatitic gneiss; exact identification requires testing
metamorphic
Sandstone
Arenite (Sandstone)
sedimentary
Sandstone
Arenite (Sedimentary rock composed of sand-sized grains)
sedimentary
Clear Quartz / Diamond (untested)
Silicon Dioxide (SiO2) or Carbon (C)
mineral
Likely weathered mica schist fragment
Mica schist, chiefly muscovite/biotite mica with quartz and feldspar
metamorphic
Sandstone
Quartz Arenite / Sedimentary Rock
sedimentary
Likely basalt with a pale mineral-filled vesicle
Vesicular basalt, probably containing calcite or zeolite (uncertain from image)
igneous
Sandstone
Arenite (primarily SiO2)
sedimentary
Botryoidal chalcedony (possibly agate/geode material)
Microcrystalline quartz, SiO₂; commonly chalcedony with quartz-lined cavities and iron-oxide staining
mineral
Sandstone
Quartz Arenite / Clastic Sedimentary Rock
sedimentary
Colorless Gemstone (possibly Diamond or Cubic Zirconia)
C (Diamond) or ZrO2 (Cubic Zirconia)
gemstone
Sandstone (likely River-tumbled Picture Sandstone)
Arenite (predominantly SiO2 with iron oxide impurities)
sedimentary
Basalt (Greenstone/Water-worn Pebble)
Basalt (containing Chlorite/Epidote)
igneous
Quartz
Silicon Dioxide (SiO2)
mineral
Sandstone
Arenite
sedimentary
Sandstone (Micaceous)
Clastic Sedimentary Rock - Micaceous Litharenite (SiO2 principal)
sedimentary
Opalite
Man-made opalescent glass (SiO2 + metal oxides)
mineral (synthetic)
Sandstone
Clastic Sedimentary Rock
sedimentary
Granite
Felsic intrusive igneous rock
igneous
Pebble / Rounded Rock
Lithic fragment / Water-worn rock
sedimentary
Blue Apatite
Calcium phosphate mineral, Ca5(PO4)3(F,Cl,OH)
mineral
Cubic Zirconia
Zirconium Dioxide (ZrO2)
mineral
Emerald
Beryl (Be3Al2(SiO3)6)
gemstone
Sandstone
Sandstone (SiO2 predominant)
sedimentary
Quartz pebble
Silicon dioxide (SiO2)
sedimentary