Sandstone
Clastic sedimentary rock
Category
Browse sedimentary mineral specimens identified by the Rock Identifier community.
Sandstone
Clastic sedimentary rock
Sandstone (Tumbled / Rounded)
Sedimentary Rock (Quartz arenite)
Shale
Shale (Consolidated fine-grained clay/silt)
Conglomerate Pebble (with Chert / Quartz)
Sedimentary Conglomerate / Breccia Pebble
Conglomerate
Lithified, poorly sorted gravel; composition is uncertain from the image
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
Quartz-veined Sandstone Pebble
Quartzose Sandstone with Quartz Veinlets
Sandstone
Arenite (SiO2 principal)
Chalcedony (Botryoidal)
Silicon Dioxide (SiO2)
Clear Quartz
SiO2 (Silicon Dioxide)
Hematite
Iron(III) oxide (Fe2O3)
Banded gneiss
Gneiss, chiefly quartz–feldspar–mica
Sandstone
Clastic Sedimentary Rock
Sandstone
Clastic Sedimentary Rock
Sandstone Concretion
Sedimentary Concretion (Quartz sand bound by mineral cement)
Sandstone
Clastic Sedimentary Rock
Sandstone
Arenite (SiO2 based)
Sandstone
Sandstone ( преимущественно SiO2 )
Chert / Quartz Pebble
Silicon Dioxide (SiO2)
Tumbled milky quartz
Quartz (silicon dioxide, SiO₂)
Quartz-veined Sandstone
Quartzite-veined Arenite / SiO2 and quartz sand
Apatite
Calcium phosphate fluoride/chloride, Ca5(PO4)3(F,Cl,OH)
Red Sandstone Pebble
Sedimentary Quartz Arenite / Arkose
Sandstone (Quartzose)
Arenite (primarily SiO2)
Chalcopyrite
Copper Iron Sulfide (CuFeS2)
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
Jasper
Silicon dioxide (Microcrystalline Quartz, SiO2)
Blue Apatite
Apatite (Ca5(PO4)3(F,Cl,OH))
Satin Spar (Selenite variant)
Gypsum (Calcium Sulfate Dihydrate, CaSO4·2H2O)
Shale
Argillite / Shaly Mudstone
Pyrite
Iron Sulfide (FeS2)
Sandstone (likely Arkosic or Lithic)
Clastic Sedimentary Rock (SiO2 with accessory minerals)
Dendritic sandstone
Sandstone with Manganese Oxide dendrites
Limonite (Iron Ore)
Limonite (FeO(OH)·nH2O)
Turquoise
Turquoise, CuAl6(PO4)4(OH)8·4H2O
Quartz Geode Fragment
Silicon Dioxide (SiO2)
Conglomerate
Conglomerate (a clastic sedimentary rock)
Sandstone (Ferruginous)
Arenite with Iron-Oxide Cement
Sandstone (Quartzite-rich)
Clastic sedimentary rock (SiO2 primary)
Fossil shell
Likely a fossilized marine bivalve shell; exact taxon is indeterminate from the image.
Sandstone Concretion
Clastic sedimentary rock (primarily Quartz SiO2 with mineral cement)
Small pale stone, possibly quartz or limestone
Indeterminate from image; likely quartz (SiO₂) or calcite-rich limestone (CaCO₃)