Bauxite
Bauxite (Al2O3·nH2O)
sedimentary
Category
Mineral And Sedimentary
Browse mineral and sedimentary specimens identified by the Rock Identifier community.
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Chert (specifically Flint or Jasper variant)
Microcrystalline Quartz (SiO2)
sedimentary
Sandstone (Fossiliferous)
Clastic Sedimentary Rock (primarily SiO2)
sedimentary
Sandstone
Clastic sedimentary rock (primarily SiO2)
sedimentary
Quartz
Silicon Dioxide (SiO2)
mineral
Chert (with potential fossil inclusion)
Microcrystalline Quartz (SiO2)
sedimentary
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Sandstone (Banded)
Clastic Sedimentary Rock (primarily SiO2 with Iron Oxide staining)
sedimentary
Basalt with Caliche Crust
Aphanitic Mafic Igneous Rock with Calcium Carbonate (CaCO3) coating
igneous
Sandstone (Iron-stained)
Arenite (primarily Quartz, SiO2)
sedimentary
Sandstone
Arenite
sedimentary
Sandstone (Ferruginous)
Sandstone (clastic sedimentary rock, mainly SiO2 with iron oxide cement)
sedimentary
River Sandstone (Lithic Arenite)
Lithic Sandstone (SiO2 dominated with lithic fragments)
sedimentary
Sandstone (with Iron Staining)
Clastic sedimentary rock (primarily SiO2 with Fe2O3 staining)
sedimentary
Quartz Vein in Sedimentary Matrix
Silicon Dioxide (SiO2) with host rock
mineral
Limonite (Iron Ore)
Limonite (Hydrous ferric oxides), generic formula FeO(OH)·nH2O
mineral
Sandstone (Quartzite-rich)
Clastic sedimentary rock (primarily SiO2)
sedimentary
Sandstone (lithic wacke/arenite)
Clastic sedimentary rock (primarily SiO2)
sedimentary
Limonite (Iron Ore)
Limonite (Hydrous iron(III) oxide-hydroxide mixture, primarily FeO(OH)·nH2O)
mineral
Piddock bored rock (likely Mudstone or Shale)
Ichnofossil (Gastrochaenolites borings) in Fine-grained Sedimentary Rock
sedimentary
Chert (Jasper variation)
Chert (Silicate mineral, SiO2)
sedimentary
Jasper
Jasper (Silicate mineral, SiO2)
sedimentary
Jasper
Jasper (Silicate mineral, SiO2)
sedimentary
Red Jasper
Jasper (Silicate Mineral - SiO2)
sedimentary
Sandstone (specifically Lithic or Quartz Arenite)
Arenite (composed primarily of SiO2)
sedimentary
Sandstone
Arenite (composed primarily of SiO2)
sedimentary
Sandstone
Arenite (SiO2 based)
sedimentary
Sandstone with Algae Growth
Arenite with Chlorophyta/Lichen
sedimentary
Dalmatian Jasper
Peralkaline rhyolite with arfvedsonite inclusions
igneous
Sandstone
Clastic Sedimentary Rock (composed of SiO2 grains)
sedimentary
Sandstone
Arenite (composed primarily of SiO2)
sedimentary
Sandstone (Quartzose Sandstone)
Arenite (primarily SiO2)
sedimentary
Quartz (Milky/Rose variety)
Silicon Dioxide (SiO2)
mineral
Sandstone (Quartzose)
Arenite (primarily SiO2)
sedimentary
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Selenite (Satin Spar)
Gypsum (Calcium Sulfate Dihydrate, CaSO4·2H2O)
mineral
Sandstone (Red)
Arenite (Fe2O3 heavy)
sedimentary
Fluorite
Fluorite (Calcium Fluoride - CaF2)
mineral
Limonite with Goethite
Iron Hydroxide Mixture (FeO(OH)·nH2O)
mineral
Chert / Flint
Cryptocrystalline quartz (SiO2)
Sedimentary
Sandstone (likely Quartz Sandstone)
Arenite (SiO2 based)
sedimentary
Sandstone
Arenite
sedimentary