Aventurine
Quartz containing inclusions of Fuchsite (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)
metamorphic
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.
Zinc Alloy (Silver-plated)
Zinc Alloy Casting (Zn-Al-Mg-Cu)
mineral (refined metal)
Rough Sapphire (Corundum)
Corundum (Al2O3)
mineral
Aura Quartz
Titanium/Titanium-Gold treated Silicon Dioxide (SiO2)
mineral
Pink Tumbled Quartz (Dyed)
Silicon Dioxide (SiO2)
mineral
Man-made Slag (Industrial Byproduct)
Anthropogenic Glassy Residue
not a natural rock
Dyed Aura Quartz
Silicon Dioxide (SiO2) with metallic coating
mineral
Dyed Quartz Geode
Silicon Dioxide (SiO2) with artificial pigment
mineral
Cultured Marble (Synthetic)
Polymer-matrix composite (typically calcium carbonate in polyester resin)
Synthetic / Composite Material
Concrete Rubble with Aggregate
Hardened Portland Cement Paste with Coarse Aggregate
Anthropogenic (Man-made)
Hematite
Iron(III) oxide (Fe2O3)
mineral
Slag
Metallurgical by-product
Anthropogenic (Man-made material)
Glass
Amorphous Silicon Dioxide (SiO2)
mineraloid
Goldstone
Avventurina (Cu + SiO2 glass)
mineral
Diamond
Native Carbon (C)
mineral
Hematite
Iron(III) oxide (Fe2O3)
mineral
Sea Glass (specifically Frosted White)
Amorphous Silica (substance: Sodium-calcium silicate glass)
Mineraloid (Anthropogenic/Man-made rock)
Lava Rock with Fabric Impression
Scoria or Basalt with anthropogenic impressions
igneous
Libyan Desert Glass
Tektite (high-silica impact glass), SiO2
mineral
Slag
Glassy silicate byproduct (anthropogenic material)
industrial byproduct
Man-made Carved Stone (Scream Mask/Skull motif)
Carved Soapstone or Serpentine-rich rock
Anthropogenic (Man-made artifact)
Blue Goldstone
Auraventurine (Synthetic glass with cobalt and copper inclusions)
Synthetic (Man-made Glass)
Sandstone Concretion
Septarian or Carbonate-cemented Sandstone Concretion
sedimentary
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
Sandstone-based Concrete Fragment
Cementitious Composite with Sedimentary Aggregate
sedimentary (man-made/anthropogenic)
Dyed Crackle Quartz
Silicon Dioxide (SiO2) with synthetic dye
mineral
Cullet Glass (Man-made Glass Slag)
Amorphous Silica (SiO2) with chemical additives
Mineraloid
Metal Chain Belt with Square Plates
Not applicable (man-made)
Man-made Object (Metalwork)
Opalite
Man-made synthetic glass with opalescent effects (SiO2 + metal oxides)
mineraloid
Sandstone (likely Quartzose Sandstone)
Arenite
sedimentary
N/A - Man-made object (Jewelry Chain)
Antiqued or Oxidized Metal Chain (often Steel or Brass)
Mineral (processed metal)
Slag
Anthropogenic glassy silicate
Mineral-like byproduct
Transit Token (RTD Denver)
Nickel-plated brass or bronze alloy (Cu-Sn-Zn-Ni)
not a rock or mineral (anthropogenic material)
Cubic Zirconia (Man-made)
Cubic Zirconia (ZrO2) with Enamel and Metal Alloy
mineral
Goldstone
Not a natural mineral or rock. It is an ornamental glass.
Manufactured Glass (Simulant)
Green Glass Slag
Amorphous Silicon Dioxide (SiO2) with metal oxide impurities
mineraloid (man-made)
Dyed Agate / Painted Stone
Silicon Dioxide (SiO2) with artificial pigment
sedimentary (base), then artificial
Conglomerate
Conglomerate (Sedimentary rock containing rounded clasts)
sedimentary
Diamond Druzy (Crystalline Diamond)
Carbon (C)
mineral
Hematite Beads
Hematite (Fe2O3)
Mineral
Green Slag Glass
Cullet (Amorphous Silicon Dioxide with impurities)
Man-made rock-like material