Note: Item is not a geological specimen
Homo sapiens (Dermal Appendage: Pilus)
Organic / Biological
Category
Non Geological
Browse non geological specimens identified by the Rock Identifier community.
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Man-made Jewelry (Metal and Glass/Plastic)
Synthetic Alloy and Amorphous Solid (SiO2/Polymer)
not a rock
Note on Image Identification: Textile
N/A (Anthropogenic material)
not a rock
Painted River Rock
Polished fluvial clast with acrylic/synthetic pigment coating
Sedimentary or Metamorphic (base substrate)
Barite (Desert Diamond)
Barite (Barium Sulfate, BaSO4)
mineral
One Pound Coin (UK)
Nickel-Brass Alloy (Cu-Zn-Ni)
mineral
Borosilicate Glass (Manufactured)
SiO2 + B2O3 (Silicon dioxide and Boron trioxide)
Synthetic/Amorphous Solid
Man-made Ceramic / Clay Figurine
Aluminosilicate Ceramic (Processed Clay)
Synthetic (not a rock or mineral)
Note: This is a Man-Made Object (Costume/Prop Patch)
Synthetic fiber and pigments (Cellulose/Plastic-based composite)
Non-geological
Quartz pebble or seed/crumb
SiO2 (if quartz)
mineral
Everest
Canis lupus familiaris (Siberian Husky)
not a rock (animated character)
Quartz Geode with Calcite
Silicon Dioxide (SiO2) and Calcium Carbonate (CaCO3)
Mineral/Geode
Unknown white fragment
Unknown
unknown
Quartz Geode / Druzy Quartz
Silicon Dioxide (SiO2)
mineral
Build-A-Bear Plush (Non-Geological)
Polyester fibers (C10H8O4)n and Synthetic Polymers
Anthropogenic / Non-mineral
Likely small metallic meteorite fragments
Unclassified iron or stony-iron meteorite; mineralogy cannot be confirmed from the image
meteorite
Shale (with Iron Staining)
Argillaceous mudstone / Shale
sedimentary
Small pale rock fragment
Indeterminate; possibly quartz, calcite, or a weathered feldspar-rich fragment
mineral
River Stone (Chert/Basalt mix)
Microcrystalline Quartz (Chert) / Basalt
sedimentary
Quartzite River Cobble
Quartzite (SiO2)
metamorphic
Grass (Organic Matter/Soil)
Poaceae (family of monocotyledonous flowering plants)
Organic Materia (Not a rock or mineral)
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Greenstone / Glauconitic Siltstone
Metabasalt or Glauconite-rich Sedimentary Rock
metamorphic or sedimentary
Chert Pebble
Chert (SiO2)
sedimentary
N/A - Image is non-geological
Acrylonitrile Butadiene Styrene (ABS) or Polypropylene (PP)
Synthetic material (Plastic/Polymer)
Anthracite
Anthracite Coal
sedimentary
Stainless Steel Spoon
Iron-Chromium Alloy (Fe + Cr + Ni)
mineral-based human-made alloy
Abbey Bominable (Monster High character)
Anthropomorphic Yeti / Digital Animation
not a rock (animated character)
Jasper
Silicon dioxide (Microcrystalline Quartz, SiO2)
sedimentary
Chert (Jasper variety)
Silicon dioxide (SiO2)
sedimentary
Green aventurine (likely)
Quartzite dominated by quartz (SiO₂), colored green by fuchsite mica or chlorite
mineral
Engineered Quartz Stone
Agglomerated Quartz (SiO2 + Polymer Resin)
mineral-based composite
Limonite or Ironstone Nodule
FeO(OH)·nH2O (Hydrated iron(III) oxide-hydroxide)
sedimentary
Quartzite Pebble
Metamorphic Quartzite (predominantly SiO2)
metamorphic
Laterite
Laterite (Iron and Aluminum-rich residual soil/rock)
sedimentary
N/A - Non-Geological Item
not a rock/mineral
Limonite (with goethite)
Hydrated Iron(III) Oxide-Hydroxide (FeO(OH)·nH2O)
mineral
Fossilized Oyster Shell
Ostreidae (Calcium Carbonate - CaCO3)
fossil
Gold
Native Gold (Au)
mineral
River Pebble (likely Quartzite or Diorite)
Metamorphosed Quartz-rich Rock / Intermediate Igneous Rock
metamorphic
Petrified Wood
Silicified Wood (SiO2)
fossil
Obsidian
Volcanic Glass (SiO2)
igneous