Sandstone
Sedimentary Rock (Quartz arenite)
sedimentary
Category
Mineral Based Composite
Browse mineral based composite specimens identified by the Rock Identifier community.
Learn about Mineral Based Composite in the encyclopedia
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Sandstone
Sedimentary Rock (Quartz arenite / Lithic sandstone)
sedimentary
Shale / Mudstone
Laminated Mudrock (Siliciclastic Sedimentary Rock)
sedimentary
Sandstone
Sedimentary Rock (Quartz arenite)
sedimentary
Granite
Granite
igneous
Sandstone
Sedimentary Rock (Quartz arenite or arkose)
sedimentary
Sandstone
Quartz Arenite / Sedimentary Rock
sedimentary
Sandstone with Trace Fossils
Quartz Arenite with Bioturbation (Trace Fossils)
sedimentary
Sandstone
Sedimentary Clastic Rock (Quartz Arenite)
sedimentary
Shale or Argillite
Shale (fine-grained clastic sedimentary rock) or Argillite (low-grade metamorphic rock derived from shale)
Sedimentary or Metamorphic (low grade)
Lapis Lazuli (Low Grade)
Lazurite-rich metamorphic rock ((Na,Ca)8(AlSiO4)6(SO4,S,Cl,OH)2)
metamorphic
Granite Pebble
Granite
igneous
Sandstone
Arenite
sedimentary
Bauxite
Bauxite (Al2O3·2H2O mixed with iron oxides)
sedimentary
Sandstone
Sandstone (various mineral compositions)
Sedimentary
Shiva Lingam
Cryptocrystalline Quartz and Iron Oxide
sedimentary
Bauxite
AlOx(OH)3-2x (mixture of Gibbsite, Boehmite, and Diaspore)
sedimentary
River Pebble (Greywacke / Basalt Pebble)
Indeterminate Rounded Pebble (composed of quartz, feldspar, or mafic minerals)
sedimentary
Serpentinite
Serpentinite (composed primarily of Serpentine minerals: Mg3Si2O5(OH)4)
metamorphic
Sandstone with Bedding Planes
Arenite (Sedimentary rock composed primarily of sand-sized minerals)
sedimentary
Sandstone
Clastic Sedimentary Rock
sedimentary
Sandstone Pebble
Sedimentary Rock (Quartzose Sandstone)
sedimentary
Sandstone
Sedimentary Rock (Quartz arenite/Arkosic sandstone)
sedimentary
Red Sandstone
Sedimentary Clastic Rock (Quartz Arenite / Arkose)
sedimentary
Granite
Phaneritic intrusive igneous rock
igneous
Coquina / Shelly Sandstone
Calcareous Sandstone / Coquina
sedimentary
Sandstone (likely Quartzose Sandstone pebble)
Arenite (primarily SiO2)
sedimentary
Shale
Shale
sedimentary
Sandstone
Sedimentary Rock (Quartzose Sandstone)
sedimentary
Sandstone with Iron Weathering
Quartz Arenite / Weathered Sandstone
sedimentary
Sandstone
Sedimentary quartz arenite
sedimentary
Sandstone
Sedimentary Rock (Quartz arenite or arkose)
sedimentary
Bauxite
Bauxite (Al(OH)3, AlO(OH), AlOOH)
sedimentary
Moonstone
Adularia (Potassium Aluminum Silicate, KAlSi3O8)
mineral
Bauxite
Bauxite (Al(OH)3, AlO(OH))
sedimentary
Bauxite
Bauxite (Al2O3·nH2O)
sedimentary
Blue Apatite
Ca5(PO4)3(F,Cl,OH)
mineral
Blue Apatite
Ca5(PO4)3(F,Cl,OH)
mineral
Sandstone
Sedimentary Rock (Quartz Arenite)
sedimentary
Sandstone
Sedimentary Rock (Quartz Sandstone)
sedimentary
Sandstone
Clastic sedimentary rock (primarily quartz arenite)
sedimentary
Sandstone
Sedimentary Rock (Quartz Arenite)
sedimentary