Asphalt / Road Aggregate
Bituminous Conglomerate (synthetic)
sedimentary
Category
Mineral Based Human Made Alloy
Browse mineral based human made alloy specimens identified by the Rock Identifier community.
Learn about Mineral Based Human Made Alloy in the encyclopedia
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Concrete
Anthropogenic Sedimentary Conglomerate (Cement mixture: typically Ca2SiO4, Ca3SiO5, Ca3Al2O6)
sedimentary (artificial)
Synthetic Convention Badge (Plastic/PVC)
Polyvinyl Chloride (PVC) / Polycarbonate
mineraloid (synthetic)
Bismuth Crystal
Bismuth (Bi)
mineral
Opalite
Synthetic Glass / Man-made Opal Simulant
gemstone
Aura Quartz (Titanium/Rainbow Quartz)
SiO2 (Silicon Dioxide) with metallic coating
mineral
Seven Chakra Bonded Stone
Bonded composite of Red Jasper, Carnelian, Tiger's Eye, Aventurine, Lapis Lazuli, Amethyst, and Clear Quartz
metamorphic
Native Copper
Copper (Cu)
mineral
Painted River Rock
Artificially Coated Sedimentary Rock
sedimentary
Asphalt (Road Aggregate)
Bituminous Conglomerate / Asphalt Concrete
Anthropogenic (Man-made)
Sandstone
Arenite (SiO2 based typically)
sedimentary
Nickel coin (U.S. currency)
Cupronickel (75% Copper, 25% Nickel alloy)
man-made alloy (metallic)
Asphalt aggregate (crushed stone in bitumen)
Artificial composite; predominantly crushed granite, basalt, limestone, and/or recycled aggregate bound by bitumen
sedimentary
Blue Goldstone
Man-made glass with crystalline copper/cobalt inclusions
mineral
Pink Quartz / Sea Glass
Silicon Dioxide (SiO2)
mineral
Sandstone (with concrete/human-made layer)
Clastic Sedimentary Rock (primarily Quartz/Feldspar grains)
sedimentary
Sandstone
Arenite (primarily SiO2)
sedimentary
Note: This is a Man-Made Object (Costume/Prop Patch)
Synthetic fiber and pigments (Cellulose/Plastic-based composite)
Non-geological
Chert (Flint / Jasper)
Silicon Dioxide (SiO2)
sedimentary
Aura Quartz
Titanium-coated Silicon Dioxide (SiO2)
mineral
Sea Glass
Man-made silicate glass (Amorphous silicon dioxide)
sedimentary
Chert / Flint
Microcrystalline Quartz (SiO2)
sedimentary
Native Copper
Native Copper (Cu)
mineral
Sandstone
Arenite (SiO2 based clastic rock)
sedimentary
Opalite crescent pendant
Opalite (man-made opalescent glass; not a natural mineral)
gemstone
Slag
Metallurgical by-product
Anthropogenic (Man-made material)
Sea Glass
Amorphous silicon dioxide (SiO2) - Man-made glass tumbled by nature
mineral
Pearl
Calcium Carbonate (mostly Aragonite), CaCO3 (with conchiolin)
mineral
Sandstone
Arenite (SiO2 primarily)
sedimentary
Angel Aura Quartz (Treated Clear Quartz)
Silicon Dioxide (SiO2) coated with Vaporized Silver and Platinum
mineral
Polished orbicular granite (likely larvikite or orbicular diorite)
Quartz/feldspar-bearing granitoid with dark amphibole–biotite minerals; exact variety requires testing
igneous
Ferrochrome Slag
Anthropogenic slag (Fe-Cr alloy waste)
industrial byproduct
Molybdenite in Quartz
Molybdenite (MoS2) with Quartz (SiO2)
mineral
Concrete
Anthropogenic Sedimentary Rock (Hydrated Calcium Silicate)
sedimentary (anthropogenic / man-made)
Blue calcite sphere
Calcite (CaCO₃), commonly blue-calcite variety
mineral
Goldstone (aventurine glass)
Man-made copper-bearing glass; not a natural mineral (commonly sold as blue/brown goldstone)
mineral
Concrete Fragment
Hardened Portland Cement Composite
Anthropogenic (Man-made material mimicking sedimentary rock)
Tumbled blue glassy mineral, possibly sodalite or blue aventurine
Identification uncertain; likely sodalite (Na₈Al₆Si₆O₂₄Cl₂) or blue-dyed quartz/slag-like material
mineral
Chert (Flint)
Silicon Dioxide (SiO2)
sedimentary
Concrete
Hydrated Portland Cement Aggregate Composite
Anthropogenic Sedimentary (Man-made)
Concrete
Anthropogenic Conglomerate
sedimentary
Aluminum Slag
Anthropogenic Aluminum (Al)
mineral