Slag Glass (Cullet)
Amorphous Silicon Dioxide (SiO2) with metal oxide colorants
Anthropogenic (Man-made)
Category
Antropogenic (Man Made Material)
Browse antropogenic (man made material) specimens identified by the Rock Identifier community.
Slag (Anthropogenic Glass/Iron byproduct)
Ferro-silicate Slag
Anthropogenic (Man-made)
Granite
Granite (a plutonic rock)
Igneous
Diorite
Diorite (Intermediate intrusive igneous rock)
igneous
Artificial Rock Face (Faux Rock)
Glass Fiber Reinforced Concrete (GFRC)
man-made/construction material
Sandstone (specifically Arkose or Quartz Arenite)
Arenite (primarily SiO2 with possible Feldspar)
sedimentary
Ferruginous Sandstone (Ironstone)
Clastic Sedimentary Rock (composed of SiO2 with Fe2O3/FeO(OH) cement)
sedimentary
Coquina
Coquina (Bioclastic Limestone)
sedimentary
Slag
Anthropogenic Vitrification Product / Silicate Slag
Anthropogenic (Man-made industrial byproduct)
Malaysian 50 Sen Coin
Coinage (specific alloy unknown without metallurgical analysis, but typically brass or bronze for this denomination and era)
Man-made object (coin)
Chert (specifically Jasper or Flint variety)
Cryptocrystalline Quartz (SiO2)
sedimentary
Pyrite
Iron Sulfide (FeS2)
mineral
Diamond (in jewelry setting)
Diamond (C - Carbon)
mineral
Mother of Pearl (Nacre)
Calcium Carbonate (primarily aragonite, with conchiolin)
Organic Gemstone/Biomineral
Diamond in Kimberlite
Diamond (C in Kimberlite)
igneous
Rough Diamond
Diamond (Pure Carbon: C)
mineral
Goldstone
Avventurina (Cu + SiO2 glass)
mineral
Chert (Iron-stained)
Chert (Microcrystalline and Cryptocrystalline Quartz, SiO2)
sedimentary
Granite
Phaneritic Igneous Rock (composed mostly of Quartz, Alkali Feldspar, and Plagioclase)
igneous
Chert (Grey-Green Flint)
Microcrystalline silicon dioxide (SiO2)
sedimentary
Asphalt
Asphalt concrete (engineered material, not a naturally occurring rock/mineral in this form)
Sedimentary
Chert (specifically Zebra Chert/Flint)
Silicon Dioxide (SiO2)
sedimentary
Common Marble
Calcium Carbonate (CaCO3)
metamorphic
Cardstock (Paper)
Cellulose (C6H10O5)n
sedimentary (man-made)
Synthetic Resin (Artificial Specimen)
Polyurethane or Polyester Resin
mineraloid (man-made)
Granite
Granite (a common rock type, not a single mineral with a formula. Composed primarily of quartz, feldspar, and mica/amphibole).
igneous
Clay (as a rock-forming material)
Clay minerals (e.g., Kaolinite group, Smectite group, Illite group, Chlorite group)
Mineral
Chert (Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Chert (specifically Flint or Common Chert node)
Silicon Dioxide (SiO2)
sedimentary
Rough Corundum (Sapphire/Ruby mixture)
Corundum (Aluminum Oxide, Al2O3)
mineral
Diamond (Colorless/White)
Carbon (C)
mineral
Blue Goldstone
Aventurine glass (Synthetic borosilicate glass with cobalt and metallic inclusions)
man-made glass
Green Glass Slag
Amorphous Silicon Dioxide (SiO2) with metal oxide impurities
mineraloid (man-made)
Porcelain (Stoneware Ceramic)
Mullite / Silica-glass composite (Al6Si2O13)
metamorphic (man-made)
Glass Nugget (Tumbled Glass)
Amorphous Silicon Dioxide (SiO2) with additives
mineraloid (man-made)
Granite
Granite (felsic intrusive igneous rock)
igneous
Diamond (or Cubic Zirconia simulant)
Carbon (C) - Diamond / Zirconium dioxide (ZrO2) - CZ
mineral
Crushed Limestone
Calcium Carbonate (CaCO3)
Sedimentary
Chalk
Micrite (primarily Calcium Carbonate, CaCO3)
sedimentary
Diamond (in a jewelry setting)
Carbon (C)
mineral
Banded Calcite or Travertine
Calcium Carbonate (CaCO3)
Sedimentary
Sea Glass (Frosted Glass)
Amorphous Silica (SiO2) with various additives
Man-made material (Anthropogenic 'mineraloid')