Opalite
Synthetic Glass (typically Silica/Magnesium based with metal additives)
mineral
Category
Antropogenic (Man Made Glass Byproduct)
Browse antropogenic (man made glass byproduct) specimens identified by the Rock Identifier community.
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Opalite
Synthetic Glass (Simulated Opal)
gemstone
Terrazzo (Man-made Composite)
Cementitious or Resin-bound Lithic Composite
sedimentary (artificial)
Tumbled milky quartz pebble
Quartz (silicon dioxide, SiO₂), opaque-to-translucent milky variety
mineral
Concrete Fragment
Artificial Conglomerate (Cement and Aggregate)
sedimentary
Green Quartz / Chrysoprase / Sea Glass
Silicon Dioxide (SiO2)
mineral
Opalite
Opalescent Glass (SiO2 + coloring agents)
Mineral (Synthetic/Man-made)
Opalite
Synthetic Opalised Glass
mineral
Opalite
Synthetic Opalite (Man-made glass)
mineral
Diamond (or Simulant)
Carbon (C) or relevant simulant formula (e.g., ZrO2 for Cubic Zirconia)
gemstone
Blue Goldstone
Auraventurine (Synthetic glass with cobalt and copper inclusions)
Synthetic (Man-made Glass)
Opalite
Man-made Opalized Glass (Synthetic Glass)
gemstone
Opalite
Synthetic Opalized Glass
gemstone
Opalite (Synthetic Opalized Glass)
Synthetic Silicon Dioxide (SiO2) glass
mineral
Sea Glass
Amorphous silicon dioxide (man-made glass weathered by nature)
mineral
Opalite (a synthetic glass)
Silicon Dioxide (SiO2) with various additives; not a true mineral but a man-made gem simulant
Mineral Simulant (Synthetic Glass)
ABS Plastic (Acrylonitrile Butadiene Styrene)
(C8H8)x·(C4H6)y·(C3H3N)z
Synthetic Polymer (Synthetic Material)
Goldstone (Brown)
Aventurine Glass (Silicon Dioxide infused with Copper crystals)
mineraloid (man-made glass)
Metal Chain Belt with Square Plates
Not applicable (man-made)
Man-made Object (Metalwork)
Opalite
Synthetic Glass (Simulated Opal)
mineral
Stainless Steel (Polished)
Ferrous Alloy containing Iron (Fe), Chromium (Cr), and Carbon (C)
Mineral equivalent / Metal Alloy
Diamond
Native Carbon (C)
gemstone
Blue Goldstone
Aventurine Glass
man-made glass
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite (K(Al,Cr)2AlSi3O10(OH)2)
metamorphic
Costume Jewelry with Synthetic Gemstones
Synthetic Cubic Zirconia and Glass (SiO2 / ZrO2)
mineral
Slag
Ferrous Slag (Siliceous industrial waste)
Anthropogenic (Man-made industrial byproduct)
Green Sea Glass
Man-made silicate glass (weathered)
sedimentary
Goldstone
Aventurine glass
mineral (man-made glass)
Opalite
Synthetic Glass (SiO2 + impurities)
mineral
Not a geological specimen
N/A (man-made object)
N/A
Blue Goldstone
Man-made glass with crystalline copper/cobalt inclusions
mineral
Green Aventurine
SiO2 (Silicon Dioxide with Fuchsite inclusions)
mineral
Blue Goldstone
Synthetic glass with cobalt and copper inclusions
man-made glass
Opalite
Synthetic Glass (Amorphized Silicon Dioxide)
mineraloid
Aventurine Quartz
Silicon Dioxide (SiO2) with Fuchsite inclusions
metamorphic
Not a rock, mineral, or geological specimen
N/A
Opalite
Man-made Glass (SiO2 + additives)
mineraloid (synthetic)
Beads (likely glass or man-made material)
N/A (artificial material)
Man-made material, not a natural rock or mineral specimen
Sea Glass (specifically Frosted White)
Amorphous Silica (substance: Sodium-calcium silicate glass)
Mineraloid (Anthropogenic/Man-made rock)
Green Sea Glass
Man-made vitreous material (silica glass)
gemstone
Glass
Amorphous Silicon Dioxide (SiO2)
mineraloid
Opalite
Synthetic Silicon Dioxide (SiO2)
mineral