Note: Item is not a geological specimen
Homo sapiens (Dermal Appendage: Pilus)
Category
Browse non geological specimens identified by the Rock Identifier community.
Note: Item is not a geological specimen
Homo sapiens (Dermal Appendage: Pilus)
Man-made Jewelry (Metal and Glass/Plastic)
Synthetic Alloy and Amorphous Solid (SiO2/Polymer)
Small fossilized tooth, possibly a shark tooth
Indeterminate fossil tooth; species cannot be identified from this image
Painted River Rock
Polished fluvial clast with acrylic/synthetic pigment coating
Note on Image Identification: Textile
N/A (Anthropogenic material)
Tumbled olive-green stone, possibly serpentine or nephrite jade
Undetermined; likely serpentine (Mg₃Si₂O₅(OH)₄) or nephrite, a tremolite–actinolite amphibole aggregate
Orange-yellow mineral fragment (possibly sulfur)
Unidentified; color suggests native sulfur (S), but the image is insufficient for confident identification
Barite (Desert Diamond)
Barite (Barium Sulfate, BaSO4)
Turquoise bead necklace
Turquoise, CuAl₆(PO₄)₄(OH)₈·4H₂O; likely stabilized or imitation beads cannot be ruled out from the image
Fossilized coral (possible)
Indeterminate fossil; the image does not show enough diagnostic detail to identify a taxon
Possible smooth beach pebble (identity uncertain)
Unidentified fine-grained siliceous pebble; possibly chert or quartzite
Unidentified gray rock fragment
Indeterminate from image; possibly quartz- or feldspar-rich silicate material
One Pound Coin (UK)
Nickel-Brass Alloy (Cu-Zn-Ni)
Carved amethyst fluorite (likely)
Amethyst, purple variety of quartz (SiO₂), possibly with fluorite (CaF₂)
Borosilicate Glass (Manufactured)
SiO2 + B2O3 (Silicon dioxide and Boron trioxide)
Unidentified metallic mineral or metal-like specimen
Indeterminate from image; possibly galena (PbS) or a metallic sulfide
Man-made Ceramic / Clay Figurine
Aluminosilicate Ceramic (Processed Clay)
Carved yellow stone butterfly
Undetermined; possibly carved soapstone (talc-rich rock) or another soft ornamental stone
Note: This is a Man-Made Object (Costume/Prop Patch)
Synthetic fiber and pigments (Cellulose/Plastic-based composite)
Red/pink tumbled mineral fragment
Indeterminate; possibly dyed quartz, ruby/corundum, or red glass-like chalcedony
N/A - Image is non-geological
Acrylonitrile Butadiene Styrene (ABS) or Polypropylene (PP)
Build-A-Bear Plush (Non-Geological)
Polyester fibers (C10H8O4)n and Synthetic Polymers
Quartz pebble or seed/crumb
SiO2 (if quartz)
Dark mafic rock, possibly basalt
Likely basalt; precise identification is uncertain from the image
Everest
Canis lupus familiaris (Siberian Husky)
Quartz Geode with Calcite
Silicon Dioxide (SiO2) and Calcium Carbonate (CaCO3)
Blue sapphire
Corundum (Al₂O₃), blue variety colored mainly by iron and titanium
Black polished stone beads, likely black onyx or agate
Likely chalcedony (microcrystalline quartz, SiO₂); exact material cannot be confirmed from the image
N/A - Non-Geological Item
Quartz-rich rock, possibly milky quartz
Quartz (SiO₂); exact specimen identification is uncertain from the photograph
Weathered dark mineral/rock fragment
Indeterminate; possibly iron-rich basalt, slag, or a sulfide-bearing mineral
Small weathered mineral/rock fragment
Indeterminate; possibly quartz-bearing feldspathic rock or calcite-rich specimen
Likely small metallic meteorite fragments
Unclassified iron or stony-iron meteorite; mineralogy cannot be confirmed from the image
Rounded brown river pebble
Indeterminate lithic fragment; possibly weathered sandstone, mudstone, or basalt
Quartz Geode / Druzy Quartz
Silicon Dioxide (SiO2)
Possible fossil tooth or bone fragment
Indeterminate fossilized vertebrate material; species cannot be identified reliably from this image
Weathered mica-rich schist
Muscovite/biotite schist, likely quartz-bearing
Unknown white fragment
Unknown
Synthetic Costume Accessory (Non-Geological)
Polyester and Acrylic Fiber (Anthropogenic polymer)
Slag (Industrial Byproduct)
Ferrous/Non-ferrous Silicate
Shale (with Iron Staining)
Argillaceous mudstone / Shale
Grass (Organic Matter/Soil)
Poaceae (family of monocotyledonous flowering plants)