Crackled Quartz (Dyed)
Silicon Dioxide (SiO2)
Category
Browse mineral (man made glass) specimens identified by the Rock Identifier community.
Crackled Quartz (Dyed)
Silicon Dioxide (SiO2)
Chakra Stone Tower (Composite Multi-Mineral)
Crystalline Silicon Dioxide composite (SiO2) with various inclusions
Titanium-coated Metal Cube (Man-made Fidget Toy)
Titanium-anodized or electroplated alloy (e.g., Ti-coated Zinc or Aluminum)
Polished black stone, likely obsidian
Obsidian (volcanic glass; mostly silica-rich rhyolitic composition)
Milky quartz (rough fragment)
Quartz, silicon dioxide (SiO₂)
Opalite
Synthetic glass (SiO2 + metal additions)
Asphalt / Road Aggregate
Bituminous Conglomerate (synthetic)
Slag
Ferrous Slag (Amorphous calcium-magnesium-aluminum silicates)
Polymer Clay (Mock Mineral)
Polyvinyl chloride (PVC) with plasticizers and pigment
Titanium Aura Quartz
Silicon Dioxide (SiO2) coated with Titanium and Niobium
Opalite-style pendant (likely synthetic glass, not natural opal)
Opalescent glass; commonly sold as “opalite” (not a recognized mineral species)
Likely clear quartz crystal or glass-like gemstone
Quartz, silicon dioxide (SiO₂); exact identification is uncertain from the strongly magenta-lit image
Dalmatian Stone
Dalmatian Jasper (a misnomer for an Aplite with Arfvedsonite spots)
Concretion with Geode Cavity
Ferruginous Sandstone Concretion with Quartz Center
Opalite
Synthetic Opalised Glass
Titanium-Coated Hematite (Aura Hematite)
Titanium-bonded Hematite (Fe2O3 with a Ti coating)
Polished gemstone tower assortment
Primarily quartz varieties and simulants; apparent amethyst (SiO₂), rose quartz (SiO₂), clear quartz (SiO₂), fluorite (CaF₂), sodalite, malachite, and possibly dyed or composite stones
Asphalt Chunk (Bituminous Concrete)
Aggregated Bitumen / Artificial Breccia
Aura Quartz
Silicon Dioxide (SiO2) with metallic vapor coating
Sea Glass (White/Clear)
Amorphous Silica (Alkali-Lime-Silica Glass), SiO2 + Na2O + CaO
Chert (Arrowheads)
Microcrystalline Quartz (SiO2)
Libyan Desert Glass
Impact-melt silica glass (SiO2 + traces of Al, Fe, Ti)
Blue goldstone
Man-made aventurine glass containing metallic copper particles; not a natural mineral
Opalite
Synthetic Opalised Glass
Engineerged Quartz (Quartz Composite)
SiO2 (Silicon Dioxide) in a polymer resin matrix
Botryoidal chalcedony (likely agate/jasper variety)
Microcrystalline quartz, SiO₂
Green Slag
Anthropogenic Silicate Glass
Carborundum
Silicon Carbide (SiC)
Aggregate Concrete
Anthropogenic Conglomerate (Technosol)
Obsidian (Blue)
Volcanic Glass (SiO2)
Asphalt (Bituminous Concrete)
Bituminous mix containing aggregates and petroleum-based binder (CnH2n+2)
Blue cabochon gemstone, likely synthetic glass or dyed stone
Indeterminate from image; possible glass, synthetic spinel, sodalite, or lapis lazuli
Ironstone Concretion (Pot Stone)
Siderite or Limonite Concretion (FeCO3 or FeO(OH)·nH2O)
Exposed Aggregate Concrete (Pea Gravel)
Concrete with Siliceous Alluvial Gravels
Aura Quartz (Titanium-coated Quartz)
Silicon Dioxide (SiO2) with metallic vapor coating
Cubic Zirconia
Cubic Zirconium Dioxide (ZrO2)
Tumbled black obsidian (likely)
Volcanic glass; chiefly silica-rich rhyolitic glass (SiO₂)
Aura Quartz Geodes (Lab-Altered)
Silicon Dioxide (SiO2) with Metallic Vapor Deposition
Blue glassy gemstone cabochon, likely dyed chalcedony or glass
Uncertain; possible dyed chalcedony (microcrystalline quartz, SiO₂)
Ocean Jasper Mushroom
Orbicular Jasper (Silicon Dioxide, SiO2 mixed with various impurities)
Bouncy Ball (Synthetic Rubber Polymer)
Polybutadiene / Ethylene Vinyl Acetate (EVA)
Iron Slag
Iron/Steel Slag (Ferrosilicate Glass)