Grass (Organic Matter/Soil)
Poaceae (family of monocotyledonous flowering plants)
Category
Browse organic materia (not a rock or mineral) specimens identified by the Rock Identifier community.
Grass (Organic Matter/Soil)
Poaceae (family of monocotyledonous flowering plants)
Note: Item is not a geological specimen
Homo sapiens (Dermal Appendage: Pilus)
Metallic Ornament / Jewelry
N/A - This is an artificial object, not a geological specimen.
Note: Item is not a geological specimen
Guitar Components (Steel, Nickel, Plastic, Wood)
Note: This is a Man-Made Object (Costume/Prop Patch)
Synthetic fiber and pigments (Cellulose/Plastic-based composite)
Man-made Synthetic Material (Plastic/Composite)
Acrylonitrile Butadiene Styrene (ABS) or High-Impact Polystyrene (HIPS)
N/A (Non-Geological Object)
Green glass-like cabochon, likely synthetic glass or resin
Unidentified green transparent material; possibly molded glass, synthetic spinel, or resin
Quartz (Druzy)
Silicon Dioxide (SiO2)
Druzy Quartz on Quartz Base
Silicon Dioxide (SiO2)
Unable to Identify (Image Obscured)
Quartz Druzy (on Matrix)
Silicon Dioxide (SiO2)
Not a geological specimen
N/A (man-made object)
Goldstone (aventurine glass)
Synthetic copper-bearing soda-lime glass; commonly sold as red goldstone
Popcorn
Zea mays everta (P. Wilson) (Botanical name for the corn variety)
Unknown Organic Object (likely a berry or fruit)
Not applicable; this is not a geological specimen. If it were a cranberry, its scientific name would be Vaccinium macrocarpon; if a cherry, it would be Prunus avium or Prunus cerasus.
Unidentifiable Specimen
Undetermined
Not a rock, mineral, or geological specimen
N/A - Image does not contain a rock or mineral
Anthropogenic textile material
Green glass sphere/marble
Soda-lime glass (primarily SiO2, Na2O, CaO)
Chipped Glass/Plastic Fragment
Silicon dioxide (SiO2) for glass (amorphous) or various polymer compounds for plastic
Portable Ceramic Space Heater
Polished Acrylonitrile Butadiene Styrene (ABS) Plastic with Ceramic Heating Elements
Man-made Synthetic Material (Not a rock or mineral)
Polyester (Polyethylene terephthalate) / Faux Fur
Mother of Pearl (Nacre)
Calcium Carbonate (primarily aragonite, with conchiolin)
Sedimentary Rock (Limestone or Siltstone pebble)
Sedimentary rock fragment
Fossiliferous Sedimentary Rock
Sedimentary limestone with invertebrate fossil imprint
Gold (Elemental Metal)
Gold (Au)
Sedimentary Rock with Crafts (Pet Rock)
Sedimentary rock decorated with synthetic materials
Fossilized Bone
Petrified Bone / Biogenic Sedimentary
Black Limestone
Bituminous Limestone (Calcium Carbonate - CaCO3)
Fossilized Bone
Vertebrate fossil (mineralized bone)
Black Limestone with Calcite Veining
Bituminous Limestone (CaCO3 with Organic Carbon inclusions)
Sandstone (with Moss)
Quartz Arenite / Sandstone
Petrified Wood
Silicified Wood (SiO2)
Natural Pearl
Calcium carbonate (primarily Aragonite and Conchiolin), CaCO3
Quartz-veined Limestone
Sedimentary limestone with quartz/calcite veinlets
Sandstone
Arenite (SiO2 composed primarily of quartz)
Sandstone
Sandstone (Siliciclastic Sedimentary Rock)
Shale
Laminated Fissile Pelite
Fossiliferous Sandstone
Sedimentary rock containing invertebrate fossils
Fossilized Bone Fragment
Vertebrate Fossil
Poppy Jasper
Microcrystalline Quartz (SiO2) with mineral inclusions