Libyan Desert Glass
Libyan Desert Glass (SiO2 with trace elements)
Category
Browse man made silicate (anthropogenic glass) specimens identified by the Rock Identifier community.
Libyan Desert Glass
Libyan Desert Glass (SiO2 with trace elements)
Opalite
Man-made opalescent glass (SiO2 + metal oxides)
Opalite
Man-made glass (traditionally simulated Opal)
Synthetic Costume Accessory (Non-Geological)
Polyester and Acrylic Fiber (Anthropogenic polymer)
Exposed Aggregate Concrete (Pea Gravel)
Concrete with Siliceous Alluvial Gravels
Eroded Brick or Pumice-like Scoria
Vesicular Basalt / Scoria (Anthropogenic variant: Eroded Firebrick)
Ring with an Orange Inlay
N/A (Man-made object)
Opalite (Man-made Glass)
Synthetic Silicon Dioxide Glass (SiO2 + metal oxides)
Cullet Glass (sometimes mistaken for Blue Obsidian or Slag)
Amorphous Silicon Dioxide (SiO2) with chemical additives (e.g., Cobalt for blue color)
Opalite
Synthetic Opalized Glass
Green Aventurine
Quartzite with Fuchsite inclusions (SiO2 + K(Al,Cr)2(AlSi3O10)(OH)2)
Opalite
Synthetic Opalised Glass
Opalite
Synthetic Glass (Hydrated Crystalline Silicon Dioxide simulation)
Green glass sphere/marble
Soda-lime glass (primarily SiO2, Na2O, CaO)
Ferruginous Slag (Iron Smelting Byproduct)
Anthropogenic Vitreous Silicate (often containing Fayalite: Fe2SiO4)
Blue Goldstone
Aventurine Glass
Goldstone
Aventurine Glass (Man-made glass with copper inclusions)
Terrazzo (with Marble and Granite fragments)
Cementitious or resinous composite containing Calcium Carbonate (CaCO3) and Silicates
Goldstone
Avventurina (Man-made Glass with Copper inclusions)
Opalite
Synthetic Glass (Simulated Moonstone/Opal)
Asphalt Concrete
Bituminous conglomerate
Blue Goldstone
Synthetic Avanturine Glass (or Aventurine Glass)
Sandstone Concretion
Limonitic Sandstone Concretion
Opalite
Synthetic Opalised Glass
Blue Goldstone
Man-made glass with suspended copper, cobalt, or manganese particles
Asphalt Concrete
Bituminous Concrete / Asphaltic Composite
Asphalt (Road Aggregate)
Bituminous conglomerate
Aura Quartz (Rainbow Quartz)
Silicon Dioxide (SiO2) with metallic vapor coatings
Pyrite in Quartz (Drill Core)
Silicon Dioxide (SiO2) with Iron Sulfide (FeS2) inclusions
Opalite
Synthetic glass (SiO2 + metal additions)
Chert Arrowhead
Microcrystalline Quartz (SiO2)
Opalite
Man-made Synthetic Glass (Silicon Dioxide with metal additives)
Blue slag glass or dyed glass-like industrial material
Amorphous silicate glass; likely copper-bearing blue slag, but possibly colored man-made glass
Blue Goldstone
Goldstone (artificial glass)
Goldstone (Brown/Gold)
Aventurine Glass (Man-made glass with Copper inclusions)
Strawberry Quartz
Silicon Dioxide (SiO2) with Hematite/Goethite inclusions
Titanium-coated Metal Cube (Man-made Fidget Toy)
Titanium-anodized or electroplated alloy (e.g., Ti-coated Zinc or Aluminum)
Man-made Carved Stone (Scream Mask/Skull motif)
Carved Soapstone or Serpentine-rich rock
Opalite
Synthetic Opalite Glass (Silicon Dioxide)
Pet Rock (Man-made Quartzite or Granite Cobble)
Silicon dioxide (SiO2) mixture; commonly composed of Quartz, Feldspar, and Mica
Ferrosilicon Slag (Industrial Vitrified Glass)
Vitreous Silicate Residue
Chert Concretion
Chert (Microcrystalline Quartz, SiO2)