Carved Mottled Greenish-Yellow Crystal/Glass Object
Unknown; possibly a form of quartz (chalcedony/jadeite/nephrite) or glass/resin.
Man-made Object/Uncertain Mineral
Category
Man Made Alloy (Metallic)
Browse man made alloy (metallic) specimens identified by the Rock Identifier community.
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Sunstone
(Ca,Na)((Al,Si)2Si2O8) - Plagioclase Feldspar
mineral
Blue Impression Jasper beads
Impression jasper (microcrystalline quartz/chalcedony), chiefly SiO₂, with iron-oxide and other mineral inclusions
gemstone
Chalcopyrite on Quartz
Copper Iron Sulfide (CuFeS2)
mineral
Likely galena-bearing ore
Galena (PbS), possibly mixed with quartz or carbonate gangue
mineral
Iron Meteorite
Iron-nickel alloy (primarily kamacite and taenite)
Mineral/Rock (Extraterrestrial Origin)
Iron Meteorite
Iron-nickel alloy (e.g., Kamacite, Taenite)
Meteorite (extraterrestrial material)
Chalcopyrite
Copper Iron Sulfide (CuFeS2)
mineral
Industrial Slag
Anthropogenic Vitreous Slag
igneous
Galena-bearing ore (tentative)
Galena, lead sulfide (PbS), likely in a quartz/carbonate-rich matrix
mineral
Dyed Quartz Geode
Silicon Dioxide (SiO2) with artificial pigment
mineral
Native Copper
Native Copper (Cu)
mineral
Silver (Native Element)
Ag (Argentum) - 90% Silver, 10% Copper alloy in specimen
mineral
Angel Aura Quartz (Treated Clear Quartz)
Silicon Dioxide (SiO2) coated with Vaporized Silver and Platinum
mineral
Goldstone
Aventurine Glass (SiO2 + Cu small inclusions)
man-made glass mineral simulant
Iron Meteorite
Iron-nickel alloy (primarily kamacite and taenite)
Meteorite (extraterrestrial material)
Rutilated Quartz
Silicon Dioxide (SiO2) with Titanium Dioxide (TiO2) inclusions
mineral
Arsenic (Native)
Arsenic (As)
mineral
Iron Meteorite
Iron-Nickel Meteorite (primarily composed of kamacite and taenite alloys)
Mineral
Iron-rich meteorite candidate
Possibly an iron meteorite or stony-iron meteorite; unverified Fe–Ni alloy
meteorite
Goldstone
Avventurina (Cu + SiO2 glass)
mineral
Faceted Glass (Costume Jewelry)
Amorphous Silicon Dioxide with colorants (Glass)
Synthetic/Man-made Material
Opalite (a synthetic glass, often confused with Opal)
Silicon dioxide glass (SiO2nH2O, for natural opal)
Synthetic (glass)
Sunstone (Aventurine Feldspar)
(Ca,Na)((Al,Si)2Si2O8) with inclusions of Cu or Fe2O3
mineral
Galena
Galena (lead sulfide, PbS)
mineral
Iron-rich meteorite candidate
Undetermined; possible stony-iron or iron meteorite, commonly kamacite–taenite alloy
meteorite
Likely galena-bearing ore specimen
Galena (PbS), possibly with quartz or calcite gangue
mineral
Copper
Native Copper (Cu)
mineral
Likely metallic mineral specimen
Probably galena (lead sulfide, PbS), though visual identification is uncertain
mineral
Man-made Carved Stone (Scream Mask/Skull motif)
Carved Soapstone or Serpentine-rich rock
Anthropogenic (Man-made artifact)
Native Copper
Native Copper (Cu)
mineral
Gold (Elemental Metal)
Gold (Au)
Mineral
Pallasite Meteorite
Pallasite (Stony-Iron Meteorite)
meteorite
Gold Nugget
Native Gold (Au)
mineral
Basalt
Basalt
igneous
Asphalt (Bituminous Concrete)
Bituminous Concrete / Pavement
man-made (synthetic rock)
Green Sea Glass
Amorphous Silica (man-made glass), SiO2 + additive metal oxides
mineraloid / anthropogenic (man-made origin)
Bismuth
Bismuth (Bi)
mineral
Goldstone (Synthetic Aventurescence Glass)
Cuprous Aventurescent Glass (Silicon Dioxide with Copper inclusions)
mineraloid / man-made material
Blue Goldstone
Aventurine Glass (Silicon Dioxide infused with Cobalt/Copper)
Synthetic (Man-made Glass)
Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite
mineral
Man-made Crystal (Lead Glass)
Lead oxide-doped Silica Glass (approx. SiO2 + PbO)
Mineraloid/Synthetic Material