N/A - Man-made object (Jewelry Chain)
Antiqued or Oxidized Metal Chain (often Steel or Brass)
Category
Browse sedimentary (man made conglomerate) specimens identified by the Rock Identifier community.
N/A - Man-made object (Jewelry Chain)
Antiqued or Oxidized Metal Chain (often Steel or Brass)
Man-made Jewelry Charm (Enameled Metal)
Not a natural mineral; composed of base metal alloy (likely zinc or brass) and epoxy resin/enamel.
Cullet Glass (Man-made Glass Slag)
Amorphous Silica (SiO2) with chemical additives
Sandstone
Arenite
Flint
SiO2 (Cryptocrystalline Quartz)
Sedimentary Breccia
Breccia (Clastic Sedimentary Rock)
Quartz Pebble (Water-worn Quartzite)
Silicon Dioxide (SiO2)
Limpets Shell / Fossil Specimen
Patellogastropoda (Class)
Chert (White Chert/Flint)
Microcrystalline Quartz (SiO2)
Sandstone
Arenite (composed primarily of SiO2)
Chert (Flint)
Silicon Dioxide (SiO2)
Sandstone (Quartzose)
Arenite (primarily SiO2)
Sandstone (Water-worn Cobble)
Arenite (SiO2 with CaCO3 or Fe2O3 cement)
Diamond (in a gold ring)
Diamond (pure carbon, C)
Man-made Green Quartz (Lab-grown or Treated)
Silicon Dioxide (SiO2) with artificial coloration
Gypsum (Satin Spar / Alabaster variety)
Calcium Sulfate Dihydrate (CaSO4·2H2O)
Quartz pebble
Silicon dioxide (SiO2)
Sandstone
Arenite (SiO2 based)
Sandstone
Arenite
Sandstone
Arenite (mostly SiO2)
Sandstone
Arenite (SiO2 primarily)
Sandstone (Quartzose)
Arenite (primarily SiO2)
Chert (varietal: Flint/Jasper)
Silicon Dioxide (SiO2)
Coquina
Bioclastic Limestone (composed primarily of CaCO3)
Fossilized Coral (Coquina/Limestone)
Cnidaria Anthozoa (Fossilized)
Sandstone
Arenite (SiO2 based clastic rock)
Belemnoit (Fossil)
Belemnoidea (Order), Rostrum / Guard
Chert
Microcrystalline Quartz (SiO2)
Chert (Flint)
Silicon Dioxide (SiO2)
Diamond
Carbon (C)
Quartz
Silicon Dioxide (SiO₂)
Chert (Flint / Quartz Nodule)
Microcrystalline Quartz (SiO2)
Limestone Pebble
Sedimentary Calcium Carbonate (CaCO3)
Sandstone (with potential Arkose/Lithic characteristics)
Arenite (Sedimentary rock composed of sand-sized grains)
Sandstone (lithic wacke/conglomerate mix)
Clastic Sedimentary Rock (SiO2 with lithic fragments)
Sandstone
Arenite (composed primarily of SiO2)
Sandstone (Ferruginous)
Arenite (SiO2 with Fe2O3 inclusions)
Sandstone
Arenite (composed primarily of SiO2)
Fossil Coral
Scleractinia (Stony Coral) fossil
Sandstone (likely Quartzose)
Clastic sedimentary rock (SiO2 primary)
Red Jasper (Quartzite conglomerate)
Silicon dioxide (SiO2) with Iron inclusions
Chert (Flint / Jasper)
Silicon Dioxide (SiO2)