Sandstone (with secondary weathering/concretion)
Arenite (composed primarily of Quartz, SiO2)
Category
Browse mineral on sedimentary rock specimens identified by the Rock Identifier community.
Sandstone (with secondary weathering/concretion)
Arenite (composed primarily of Quartz, SiO2)
Sandstone Pebble
Sedimentary Rock (Quartzose Sandstone)
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
Educational Geologic Collection
Mixed Mineral and Rock Collection (Various compositions)
Conglomerate
Clastic Sedimentary Rock
Sandstone
Arenite (Clastic Sedimentary Rock)
Sandstone Cobble with Iron Staining
Arenite with Limonite/Hematite staining
Sandstone Pebble
Sedimentary Rock (Quartz Arenite)
Sandstone with Quartz Vein
Arenite with Crystalline Silica (SiO2)
Sandstone Pebble
Sedimentary Rock (Quartzose Sandstone)
Fossil-bearing Sedimentary Rock
Sedimentum cum fossili
Gravel and Sediment Sample
Mixed clastic sediment
Quartz Crystal on Matrix
Silicon Dioxide (SiO2)
Sandstone Pebble
Quartzose Sandstone (Sedimentary Rock)
Quartz Geode
Quartz (Silicon Dioxide, SiO2) in a Geode
Sandstone with Quartz Sphere
Arenite (SiO2-rich sedimentary rock) with Quartzite/Rose Quartz sphere
Sandstone
Clastic sedimentary rock (Quartz arenite)
Sandstone
Clastic Sedimentary Rock (Quartz arenite)
Banded gneiss pebble
Gneiss, commonly quartz–feldspar–mica gneiss
River Pebble
Quartzite / Weathered Sedimentary Rock
Likely blue-gray gneiss
Gneiss, a foliated metamorphic rock; exact mineral composition cannot be confirmed from the image
Gravel
Unconsolidated rock fragments / detrital sediment
Quartz Druzy
Crystalline Silicon Dioxide (SiO2)
Sandstone Anvil / Nutting Stone
Quartzose Sandstone (Sedimentary Rock)
Sandstone (Lithic Wacke)
Clastic sedimentary rock (primarily SiO2 with rock fragments)
Quartz Geode
Silicon Dioxide (SiO2)
Limestone with Fossil Fragment
Sedimentary carbonate rock (CaCO3)
Sandstone (Ferruginous)
Arenite with Iron Oxide (Limonite/Hematite) coating
Sandstone
Sedimentary Rock (Quartz Sandstone)
Sandstone Pebble
Sandstone (Silicon dioxide-rich clastic sedimentary rock)
Mixed Rock Collection (Pebbles and Stones)
Various geological specimens
Red Sandstone
Arenite (Iron-rich)
Sandstone
Sedimentary Rock (Quartz Sandstone)
Sandstone
Sedimentary Rock (Quartz arenite)
Breciated Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Druzy Quartz on Matrix
Silicon Dioxide (SiO2)
Sandstone (Quartzose)
Arenite (primarily SiO2)
Shale with Quartz Vein
Argillaceous Shale with Silicon Dioxide Vein
Herkimer Diamond
Quartz (Silica - SiO2)
Pebble
Clast (specifically a granule or small pebble)
Quartz Geode
Silicon Dioxide (SiO2)
Sandstone
Sedimentary Rock (Quartz Sandstone)