Slag
Anthropogenic glassy silicate
Category
Browse man made material (anthro lithic product) specimens identified by the Rock Identifier community.
Slag
Anthropogenic glassy silicate
Aura Quartz Geodes (Lab-Altered)
Silicon Dioxide (SiO2) with Metallic Vapor Deposition
Man-made Carved Stone (Scream Mask/Skull motif)
Carved Soapstone or Serpentine-rich rock
Brick
Fired clay or Ceramic material (no specific mineralogical scientific name as it's a composite)
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite (K(Al,Cr)2AlSi3O10(OH)2)
Ironstone Concretion (Pot Stone)
Siderite or Limonite Concretion (FeCO3 or FeO(OH)·nH2O)
Chert (Yellow Jasper variant)
Microcrystalline Quartz (SiO2)
Libyan Desert Glass
Tektite (high-silica impact glass), SiO2
Asphalt
Asphalt concrete (engineered material, not a naturally occurring rock/mineral in this form)
Chert (specifically as a lithic artifact/projectile point)
Chert (Silicon dioxide, SiO2)
Blue Goldstone
Synthetic Avanturine Glass (or Aventurine Glass)
Slag Glass
Vitreous Silicate Residue
Silicon Carbide (Carborundum)
Silicon Carbide (SiC) / Moissanite (natural)
Titanium-Coated Hematite (Aura Hematite)
Titanium-bonded Hematite (Fe2O3 with a Ti coating)
Titanium Aura Quartz (Bismuth-coated Druzy)
Silicon Dioxide (SiO2) with Titanium/Metal vapor coating
Libyan Desert Glass
Libyan Desert Glass (SiO2 with trace elements)
Dyed Imperial Jasper (Sea Sediment Jasper)
Silicon Dioxide (SiO2) - Impure Quartz/Chalcedony
Opalite
Synthetic Glass (Hydrated Crystalline Silicon Dioxide simulation)
Chert (specifically Flint or Gray Chert)
Silicon Dioxide (SiO2)
Chert (Jasper/Flint variety)
Microcrystalline Quartz (SiO2)
Opalite
Synthetic Glass (Simulated Opal)
Dyed Agate / Painted Stone
Silicon Dioxide (SiO2) with artificial pigment
Chakra Stone (Composite / Man-made Bonded Gemstones)
Composite of Quartz, Lapis Lazuli, Aventurine, Tiger's Eye, and Jasper (SiO2, (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, etc.)
Opalite
Synthetic Fluorescent Glass (SiO2 + impurities)
Aura Quartz (Pink/Rose Aura Quartz)
Silicon Dioxide (SiO2) bonded with Platinum and/or Silver
Pyrite in Quartz (Drill Core)
Silicon Dioxide (SiO2) with Iron Sulfide (FeS2) inclusions
Sandstone (with Liesegang rings or joints)
Clastic Sedimentary Rock (primarily Quartz with Iron Oxide cement)
Sandstone Concretion
Clastic Sedimentary Concretion (typically Quartz/Silica with Iron Oxide)
Specular Hematite (Specularite)
Iron Oxide (Fe2O3)
Greenstone / Epidosite
Epidosite (Metasomatic rock consisting mainly of Epidite Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH) and Quartz)
Quartzite Arrowhead (Archaeological Lithic)
Recrystallized Quartz (SiO2)
Glass / Silicon Dioxide (Man-made)
SiO2 (Amorphous Silicon Dioxide)
Green Slag
Anthropogenic Silicate Glass
Man-made Glass (Tumbled/Shaped)
Amorphous Silicon Dioxide (SiO2) with metal oxide colorants
Aura Quartz
Titanium-coated Silicon Dioxide (SiO2)
Sea Glass (specifically Frosted White)
Amorphous Silica (substance: Sodium-calcium silicate glass)
Opalite (Man-made Glass)
Fused glass (typically made of dolomite and metal opacifiers)
Aventurine Quartz
Silicon Dioxide (SiO2) with Fuchsite inclusions
Moldavite
Tektite (Impact Glass), ~80% SiO2 + Al2O3
Opalite (a synthetic glass, often confused with Opal)
Silicon dioxide glass (SiO2nH2O, for natural opal)
Bismuth
Bismuth (Bi)
Sandstone Concretion
Septarian or Carbonate-cemented Sandstone Concretion