Slag
Metallurgical by-product
Anthropogenic (Man-made material)
Category
Man Made Glass (Not A Natural Rock Or Mineral)
Browse man made glass (not a natural rock or mineral) specimens identified by the Rock Identifier community.
Learn about Man Made Glass (Not A Natural Rock Or Mineral) in the encyclopedia
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Hematite
Iron(III) oxide (Fe2O3)
mineral
Cullet Glass (Slag Glass)
Amorphous Silicon Dioxide (Industrial Man-made)
mineraloid
Sea Glass
Man-made vitreous material (silica-based glass)
mineral
Asphalt / Road Aggregate
Bituminous Conglomerate (synthetic)
sedimentary
Metal Chain Belt with Square Plates
Not applicable (man-made)
Man-made Object (Metalwork)
Sandstone Concretion
Septarian or Carbonate-cemented Sandstone Concretion
sedimentary
Slag Glass
Amorphous Silicate (Man-made)
industrial byproduct
Cullet Glass (Man-made Glass Slag)
Amorphous Silica (SiO2) with chemical additives
Mineraloid
Sea Glass (specifically Frosted White)
Amorphous Silica (substance: Sodium-calcium silicate glass)
Mineraloid (Anthropogenic/Man-made rock)
Cubic Zirconia (Man-made)
Cubic Zirconia (ZrO2) with Enamel and Metal Alloy
mineral
Man-made Carved Stone (Scream Mask/Skull motif)
Carved Soapstone or Serpentine-rich rock
Anthropogenic (Man-made artifact)
Goldstone (blue-goldstone–style glass) beads
Artificial aventurine glass, typically silica glass with copper inclusions; not a natural mineral
mineral
Dyed Crackle Quartz
Silicon Dioxide (SiO2) with synthetic dye
mineral
Lava Rock with Fabric Impression
Scoria or Basalt with anthropogenic impressions
igneous
Libyan Desert Glass
Tektite (high-silica impact glass), SiO2
mineral
Sandstone
Arenite (SiO2 primarily)
sedimentary
Blue Goldstone
Auraventurine (Synthetic glass with cobalt and copper inclusions)
Synthetic (Man-made Glass)
N/A - Man-made object (Jewelry Chain)
Antiqued or Oxidized Metal Chain (often Steel or Brass)
Mineral (processed metal)
Brick
Fired clay or Ceramic material (no specific mineralogical scientific name as it's a composite)
Man-made material (constructed)
Sandstone
Arenite (variable SiO2 composition)
sedimentary
Slag
Glassy silicate byproduct (anthropogenic material)
industrial byproduct
Conglomerate
Clastic Sedimentary Rock (Conglomerate)
sedimentary
Sandstone-based Concrete Fragment
Cementitious Composite with Sedimentary Aggregate
sedimentary (man-made/anthropogenic)
Sandstone (likely Quartzose Sandstone)
Arenite
sedimentary
Transit Token (RTD Denver)
Nickel-plated brass or bronze alloy (Cu-Sn-Zn-Ni)
not a rock or mineral (anthropogenic material)
Slag (Industrial Glass/Glassy Rock)
Anthropogenic Vitreous Material
igneous
Goldstone
Not a natural mineral or rock. It is an ornamental glass.
Manufactured Glass (Simulant)
Rainbow Hematite (Man-made/Treated)
Tumbled Hematite with Titanium/Anodized coating (Iron(III) oxide, Fe2O3)
mineral
Opalite
Man-made synthetic glass with opalescent effects (SiO2 + metal oxides)
mineraloid
Slag
Anthropogenic glassy silicate
Mineral-like byproduct
Green Aventurine
Silicon Dioxide (Quartz with Fuchsite inclusions), SiO2
metamorphic
Man-made Jewelry (Metal and Glass/Plastic)
Synthetic Alloy and Amorphous Solid (SiO2/Polymer)
not a rock
Diamond Druzy (Crystalline Diamond)
Carbon (C)
mineral
Bouncy Ball (Synthetic Rubber Polymer)
Polybutadiene / Ethylene Vinyl Acetate (EVA)
Synthetic material (Not a rock or mineral)
Diamond
Carbon (C)
gemstone
Sandstone
Arenite (SiO2 primarily)
sedimentary
Green Glass Slag
Amorphous Silicon Dioxide (SiO2) with metal oxide impurities
mineraloid (man-made)
Corundum (Pink Sapphire / Ruby)
Al2O3 (Aluminum Oxide)
mineral
Sandstone
Arenite (with iron oxide cement)
sedimentary
Sandstone Concretion
Limonitic Sandstone Concretion
sedimentary
Concrete with Aggregate
Composite construction material; primary matrix is Calcium Silicate Hydrate (C-S-H)
anthropogenic (human-made) sedimentary-like material