Goldfish Cracker (Culinary Mimic)
Cibus aurum (Commonly composed of Enriched Wheat Flour and Cheddar Cheese)
Anthropogenic Sedimentary-style Organic Solid
Category
Industrial Byproduct (Anthropogenic Rock)
Browse industrial byproduct (anthropogenic rock) specimens identified by the Rock Identifier community.
Garnet Schist
Garnetiferous Micaceous Schist
metamorphic
Digital Multimeter (Synthetic Object)
Digital Multimeter (DMM)
not a rock
Quartz Geode
Silicon Dioxide (SiO2)
mineral
Quartz Druzy (Geode Fragment)
Silicon Dioxide (SiO2)
mineral
Obsidian Arrowhead
Volcanic Glass (Primary composition: SiO2)
igneous
Quartz Vein with Host Rock (Greywacke/Siltstone)
Silicon Dioxide (SiO2) within Clastic Sedimentary/Metamorphic Matrix
metamorphic
River Stone (likely Basalt or Greywacke)
Basalt with mineral veining
igneous
Sandstone with Iron Concretion
Arenite with Limonite/Goethite Concretion
sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Sandstone with Concretions / Liesegang Rings
Arenite with iron oxide banding
sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Sandstone
Arenite (SiO2 based with quartz grains)
sedimentary
The user-provided image does not contain a rock or mineral specimen
N/A
Sandstone (lithic wacke)
Arenite / Lithic Wacke (mostly SiO2 with rock fragments)
sedimentary
Basalt (River Stone)
Basalt
igneous
Crushed Stone (Basalt/Gabbro)
Mafic Igneous Rock (primarily Plagioclase and Pyroxene)
igneous
Red Quartz (Druzy)
Silicon Dioxide (SiO2) with Hematite inclusions
mineral
River Pebble (Quartzite/Chert)
Quartzite with inclusions (SiO2)
metamorphic
Man-made Synthetic Material (Plastic/Composite)
Acrylonitrile Butadiene Styrene (ABS) or High-Impact Polystyrene (HIPS)
Non-geological / Synthetic
Granodiorite
Granodiorite
igneous
Garnet Schist
Almandine Garnet Schist (Fe3Al2(SiO4)3 in Schistose matrix)
metamorphic
Concrete Paver (Artificial Cementitious Rock)
Hydrated Portland Cement Aggregate
Sedimentary (Synthetic)
Sandstone
Arenite (primarily SiO2)
sedimentary
Basalt
Extrusive mafic igneous rock
igneous
Diamond (in Matrix)
Carbon (C)
mineral
Carborundum (Silicon Carbide)
Silicon Carbide (SiC)
mineral
Vesicular Basalt
Aphanitic Mafic Igneous Rock (with Vesicular Texture)
igneous
N/A - Man-made object (Jewelry Chain)
Antiqued or Oxidized Metal Chain (often Steel or Brass)
Mineral (processed metal)
White Topaz
Aluminum Silicate Fluoride Hydroxide; Al2SiO4(F,OH)2
mineral
Vesicular Basalt (Lava Rock)
Basalt (Vesicular Variety)
igneous
Drill Core Samples (Varied Lithology)
Multi-lithological core samples (containing potential granite, marble, and phyllite/schist sequence)
igneous, sedimentary, and metamorphic
River Pebble (Gravel)
Clastic sedimentary rock (likely Siltstone or Mudstone pebble; SiO2 with various impurities)
sedimentary
Quartzite
Quartzite (primarily SiO2)
metamorphic
Quartz (Druzy on Matrix)
Silicon Dioxide (SiO2)
mineral
Shale (Beach-worn)
Laminated Pelite (primarily clay minerals and quartz)
sedimentary
Pink Granite
Granitoid (rich in Potassium Feldspar)
igneous
Garnetiferous Quartzite (Garnet Gneiss Pebble)
Garnet-bearing Quartzite or Quartz-Feldspar Gneiss
metamorphic
Quartz-veined Metamorphic Rock
Quartz Vein in Phyllite or Schist (SiO2 in Silicate Matrix)
metamorphic
Garnet
Almandine (Fe3Al2(SiO4)3)
mineral
Synthetic Wolf Plush (Non-mineral)
Canis lupus similis (Prop material: Polyester & Synthetic fibers)
Synthetic material/Textile
Limonite Stained Basalt
Hydrated Iron Oxide on Mafic Volcanic Rock (FeO(OH)·nH2O)
igneous