Sandstone (Glacial Cobble)
Arenite / Sedimentary Rock (primarily SiO2)
Category
Browse man made rock (sedimentary analogue) specimens identified by the Rock Identifier community.
Sandstone (Glacial Cobble)
Arenite / Sedimentary Rock (primarily SiO2)
Sandstone
Arenite (SiO2 variety)
Sandstone (lithic wacke/arenite)
Clastic sedimentary rock (primarily SiO2)
Sandstone
Arenite (primarily SiO2)
Limestone (Decorative Gravel)
Calcium Carbonate (CaCO3)
Sandstone (likely Quartzose)
Sandstone (Principally SiO2)
Sandstone (Ferruginous)
Arenite (primarily SiO2 with Fe2O3 staining)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Shale with Vein Infillings
Shale (a fine-grained clastic sedimentary rock). The veins could be Calcite (CaCO3), Quartz (SiO2), or other minerals.
Sandstone (likely Arkosic or Lithic Sandstone)
Clastic Sedimentary Rock (SiO2 with assorted minerals)
Quartzite and Sandstone Pebbles
Silicon dioxide (SiO2)
Sandstone Pebble
Arenite (primarily SiO2)
Sandstone (Ferruginous)
Sandstone (mainly SiO2 with Fe2O3 staining)
Sandstone (Quartzose)
Arenite (primarily SiO2)
Ironstone Concretion (Ironstone Gourd)
Limonite/Goethite Concretion (FeOO(H))
Gneiss
High-grade metamorphic rock (Gneiss)
Metal Alloy (Jewelry)
Not a naturally occurring rock or mineral; likely a metal alloy for jewelry. Possible compositions include sterling silver (92.5% silver, 7.5% copper), or other silver/gold alloys.
Sandstone
Clastic Sedimentary Rock (composed primarily of Quartz, SiO2)
Limestone (specifically Chalky Limestone)
Calcium Carbonate (CaCO3 / Calcite)
Sandstone (Quartzose Sandstone)
Arenite (primarily SiO2)
Limestone
Calcium Carbonate (CaCO3)
Conglomerate
Conglomerate (clastic sedimentary rock)
Sandstone Cobble
Clastic Sedimentary (Sandstone)
Sandstone (with Iron Staining)
Clastic sedimentary rock (primarily SiO2)
Sandstone Pebble
Arenite (primarily SiO2)
Dalmation Stone
Dalmation Jasper (Igneous microcrystalline quartz with arfvedsonite)
Sandstone (Ferruginous)
Arenite with Iron Oxide staining (Fe2O3)
Sandstone
Arenite (SiO2 based)
Sandstone
Arenite (SiO2 based)
Painted River Rock
Anthropogenic-modified Siliciclastic Sedimentary Rock
Conglomerate
Conglomerate (Clastic sedimentary rock)
Sandstone (Quartzose)
Arenite (primarily SiO2)
Sandstone (Ferruginous)
Arenite (Fe2O3 rich)
Sandstone
Arenite
Gneiss
High-grade regional metamorphic rock (Foliated)
Sandstone with Quartz Veining
Arenite with SiO2 veins
Sandstone (likely Conglomerate or Gritstone)
Arenite (SiO2 based)
Quartz Geode
Silicon Dioxide (SiO2)
Limestone
Calcium Carbonate (CaCO3)
Cockle Shell (Fossil or Recent)
Class Bivalvia, Family Cardiidae (e.g., Cerastoderma edule for common cockle)
Sandstone
Arenite (primarily SiO2)