Conglomerate
Clastic Sedimentary Rock (Conglomerate)
Category
Browse man made mineral simulant (glass) specimens identified by the Rock Identifier community.
Conglomerate
Clastic Sedimentary Rock (Conglomerate)
Aqua Aura Quartz
Silicon Dioxide (SiO2) bonded with Gold (Au)
Green glass cabochon or tumbled stone
Indeterminate; likely man-made glass, possibly aventurine glass rather than a natural mineral
Concrete rubble
Anthropogenic conglomerate
Tumbled opalite (likely synthetic glass)
Opalite; typically man-made opalescent soda-lime glass, not a recognized mineral species
Lava Rock with Fabric Impression
Scoria or Basalt with anthropogenic impressions
Ferro-slag (Leland Blue/Slag Glass)
Anthropogenic Vitreous Silica (Industrial Slag)
Concrete fragment or Conglomerate
Artificial Conglomerate (Concrete) or Natural Conglomerate
Blue goldstone beads
Man-made aventurine glass (silica glass with metallic copper inclusions), not natural lapis lazuli
Diamond ring
Diamond, crystalline carbon (C)
Aura Quartz
Titanium-coated Silicon Dioxide (SiO2)
Faceted gemstones, likely assorted quartz or glass-like gems
Not determinable from the photograph; possible quartz (SiO₂), topaz, or synthetic cubic zirconia
Green Sea Glass
Amorphous Silica (man-made glass), SiO2 + additive metal oxides
Diamond (or Simulant)
Carbon (C)
Red-orange cabochon, likely carnelian or glass imitation
Carnelian: chalcedony (microcrystalline SiO₂), commonly iron-colored
Pyrite Concretion (Grapestone)
Iron Sulfide (FeS2) Concretion
Concrete with Exposed Aggregate
Anthropogenic conglomerate (Concrete)
Polished obsidian
Volcanic glass; predominantly rhyolitic SiO₂
Porcelain (White Ceramic)
Mullite-bearing Vitrified Ceramic (Major phases: Mullite Al6Si2O13, Glassy Silica SiO2)
Cubic Zirconia (Simulated Diamond)
Cubic Zirconia (ZrO2)
Goldstone
Aventurine Glass (SiO2 + Cu small inclusions)
Blue Impression Jasper beads
Impression jasper (microcrystalline quartz/chalcedony), chiefly SiO₂, with iron-oxide and other mineral inclusions
Pink Tumbled Quartz (Dyed)
Silicon Dioxide (SiO2)
Slag (Industrial Glass/Glassy Rock)
Anthropogenic Vitreous Material
Blue glass-like gemstone, likely synthetic spinel or glass
Uncertain; possibilities include synthetic cobalt-blue spinel (MgAl₂O₄) or cobalt-colored glass
Blue chalcedony (likely dyed or treated)
Microcrystalline quartz, SiO₂ (chalcedony)
Chipped Glass/Plastic Fragment
Silicon dioxide (SiO2) for glass (amorphous) or various polymer compounds for plastic
Sandstone Anvil / Nutting Stone
Quartzose Sandstone (Sedimentary Rock)
Aura Quartz (Titanium/Gold coated)
Silicon Dioxide (SiO2) with metallic vapor deposition
Sandstone-based Concrete Fragment
Cementitious Composite with Sedimentary Aggregate
Asphalt (Bituminous pavement)
Bituminous concrete / Asphalt
Goldstone (Red/Brown)
Aventurine Glass (SiO2 with Copper inclusions)
Aura Quartz
Titanium/Titanium-Gold treated Silicon Dioxide (SiO2)
Sandstone Concretion
Clastic Sedimentary Rock (primarily SiO2 with mineral cement)
Note: This is a Man-Made Object (Costume/Prop Patch)
Synthetic fiber and pigments (Cellulose/Plastic-based composite)
Baked-clay ceramic fragment (likely brick or pottery)
Fired clay, primarily aluminosilicate minerals; not a natural rock
Opalite
Man-made synthetic glass with opalescent effects (SiO2 + metal oxides)
Faceted citrine-colored gemstone
Likely citrine (quartz, SiO₂); possibly yellow glass or synthetic gem
Man-made Synthetic Material (Plastic/Composite)
Acrylonitrile Butadiene Styrene (ABS) or High-Impact Polystyrene (HIPS)
Metal Alloy (Likely Pewter or Sterling Silver)
Not a natural geological specimen; composed of refined metals. If pewter, it's a tin-based alloy. If sterling silver, it's 92.5% silver and 7.5% other metals (usually copper).
Dyed Aura Quartz
Silicon Dioxide (SiO2) with metallic coating
Cubic Zirconia
Zirconium dioxide (ZrO2)