Crackled Quartz (Dyed)
Silicon Dioxide (SiO2)
Category
Browse not a natural rock (man made composite) specimens identified by the Rock Identifier community.
Crackled Quartz (Dyed)
Silicon Dioxide (SiO2)
Opalite
Synthetic Silicon Dioxide (SiO2)
Opalite
Synthetic Glass / Man-made Opal Simulant
Mystic Topaz
Aluminum Silicate Fluoride Hydroxide (Al2SiO4(F,OH)2) with metallic film coating
Aura Quartz (Titanium/Gold coated)
Silicon Dioxide (SiO2) with metallic vapor deposition
Cubic Zirconia (Jewelry Setting)
Cubic Zirconia (ZrO2)
Goldstone (aventurine glass)
Synthetic copper-bearing soda-lime glass; commonly sold as red goldstone
Chert Concretion (with typical hematite/limonite staining)
Sedimentary Concretion (SiO2 with FeO(OH)⋅nH2O)
Ironstone Concretion (Pot Stone)
Siderite or Limonite Concretion (FeCO3 or FeO(OH)·nH2O)
Diamond (or Cubic Zirconia)
Carbon (C) or Zirconium Dioxide (ZrO2)
Porcelain (White Ceramic)
Mullite-bearing Vitrified Ceramic (Major phases: Mullite Al6Si2O13, Glassy Silica SiO2)
Silicon Carbide (Carborundum)
Silicon Carbide (SiC) / Moissanite (natural)
Opalite (likely man-made glass)
Opalite; amorphous silica glass, not a natural mineral
Turquoise-colored ring stone (possibly turquoise or imitation)
Turquoise, CuAl₆(PO₄)₄(OH)₈·4H₂O; identity cannot be confirmed from the image
Black tumbled stone, possibly obsidian
Obsidian (volcanic glass; predominantly SiO₂), identification uncertain from image
Opalite
Man-made glass (traditionally simulated Opal)
Slag (Industrial Byproduct)
Artificial silicate/iron byproduct
Aura Quartz Geodes (Lab-Altered)
Silicon Dioxide (SiO2) with Metallic Vapor Deposition
Citrine Quartz
Citrine (Silicon Dioxide, SiO2)
Opalite
Synthetic Opalized Glass
Green Aventurine
Quartzite with Fuchsite inclusions (SiO2 + K(Al,Cr)2(AlSi3O10)(OH)2)
Titanium-Coated Hematite (Aura Hematite)
Titanium-bonded Hematite (Fe2O3 with a Ti coating)
Pearl
Nacre (aragonite, CaCO₃, with conchiolin)
Ocean Jasper Mushroom
Orbicular Jasper (Silicon Dioxide, SiO2 mixed with various impurities)
Synthetic Resin / Plastic Figurine
Synthetic Polymer (Copolymer of Polyethylene or Resin)
Titanium Aura Quartz
Titanium-coated Silicon Dioxide (SiO2)
Opalite (likely man-made opalescent glass)
Opalite; not a true mineral, typically synthetic opalescent glass (silica-based)
Opalite (Man-made Glass)
Synthetic Opalised Glass
Concrete Fragment
Hardened Portland cement and mineral aggregate
Opalite
Man-made Synthetic Glass (Silicon Dioxide with metal additives)
Rainbow Hematite Ring
Iron(III) oxide (Fe2O3) with thin-film coating
Cullet (Slag Glass)
Amorphous Silica (SiO2) with various metal oxide colorants
Colorless quartz crystal (likely quartz fragment)
Quartz, silicon dioxide (SiO₂)
Aura Quartz (Titanium/Rainbow Quartz)
SiO2 (Silicon Dioxide) with metallic coating
Blue goldstone beads
Man-made aventurine glass (silica glass with metallic copper inclusions), not natural lapis lazuli
Opalite
Synthetic Opalised Glass
Goldstone (Brown)
Aventurine Glass (Silicon Dioxide infused with Copper crystals)
Beads (likely glass or man-made material)
N/A (artificial material)
Opalite
Synthetic Opalite Glass (Silicon Dioxide)
Goldstone (likely red/brown aventurine glass)
Man-made aventurine glass; copper-bearing silicate glass (not a natural mineral)
Clear Quartz Sphere (Rock Crystal)
Silicon Dioxide (SiO2)
Asphalt (Bituminous Concrete)
Composite material (bitumen binder with mineral aggregate)