Native Gold Flake
Gold (Au)
mineral
Category
Man Made Material (Jewelry, Metal Alloy)
Browse man made material (jewelry, metal alloy) specimens identified by the Rock Identifier community.
Learn about Man Made Material (Jewelry, Metal Alloy) in the encyclopedia
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Celestine (Celestite)
Celestine (Strontium Sulfate, SrSO4)
mineral
Copper Ore
Native Copper (Cu) often found with Chalcocite (Cu2S) or Bornite (Cu5FeS4)
mineral
Opalite
Man-made Glass (Synthetic Opalized Glass)
mineral
Titanium-Coated Hematite (Aura Hematite)
Titanium-bonded Hematite (Fe2O3 with a Ti coating)
mineral
Sea Glass
Amorphous silicon dioxide (man-made glass weathered by nature)
mineral
Opalite Egg
Synthetic Glass (Simulated Opal)
mineral
Carborundum (Silicon Carbide)
Silicon Carbide (SiC)
mineral (synthetic)
Diamond (in a jewelry setting)
Carbon (C)
mineral
Polished black stone, likely black obsidian
Obsidian (volcanic glass), chiefly silica-rich rhyolitic composition
igneous
Silver (Jewelry form)
Native Silver (Ag)
mineral
Silver (Native Element)
Ag (Argentum) - 90% Silver, 10% Copper alloy in specimen
mineral
Green Sea Glass
Man-made silicate glass (weathered)
sedimentary
Goldstone (with Tiger's Eye and Quartz)
Aventurine glass (Synthetic SiO2 with Cu inclusions)
mineral
Diamond
Native Carbon (C)
mineral
Dzi Bead (Etched Chalcedony)
Cryptocrystalline Quartz (SiO2) with chemical etching
mineral
Ceramic or Polished Stone Heart (Anthropogenic Material)
Glazed Ceramic (Silicon Dioxide based coating on Alumina Silicate body) or Polished Limestone/Marble (Calcium Carbonate, CaCO3)
Synthetic/Anthropogenic Mineraloid
Bismuth Crystal
Bismuth (Bi)
mineral
Aquamarine
Beryllium aluminum silicate (Be3Al2Si6O18)
mineral
Acrylic or Resin (Synthetic Imitation)
Polymethyl Methacrylate (PMMA) or Polyepoxide
Synthetic/Man-made Polymer
Tumbled milky quartz pebble
Quartz (silicon dioxide, SiO₂), opaque-to-translucent milky variety
mineral
Industrial Slag
Anthropogenic Vitreous Slag
igneous
Chakra Stone Tower (Composite Multi-Mineral)
Crystalline Silicon Dioxide composite (SiO2) with various inclusions
mineral
Cullet Glass (Slag)
Amorphous Silicon Dioxide (Man-made)
Mineraloid
Dalmatian Stone
Dalmatian Jasper (a misnomer for an Aplite with Arfvedsonite spots)
igneous
Slag Glass
Amorphous Silicate (Man-made)
industrial byproduct
Celestite (Celestine)
Strontium sulfate (SrSO4)
mineral
Asphalt (Road Aggregate)
Bituminous Conglomerate / Asphalt Concrete
Anthropogenic (Man-made)
Titanium Aura Quartz
Titanium-coated Silicon Dioxide (SiO2)
mineral
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite (K(Al,Cr)2AlSi3O10(OH)2)
metamorphic
Banded agate pendant (likely carnelian or brown-and-white chalcedony agate)
Agate, a banded variety of chalcedony; microcrystalline quartz, SiO₂, with iron-oxide coloration
gemstone
Carborundum
Silicon Carbide (SiC)
mineral
Green Aventurine
SiO2 (Silicon Dioxide with Fuchsite inclusions)
mineral
Native Copper
Native Copper (Cu)
mineral
Celestite (Celestine)
Strontium sulfate (SrSO4)
mineral
Green Quartz / Chrysoprase / Sea Glass
Silicon Dioxide (SiO2)
mineral
Bismuth
Bismuth (Bi)
mineral
Blue slag glass or dyed glass-like industrial material
Amorphous silicate glass; likely copper-bearing blue slag, but possibly colored man-made glass
mineral
Aura Quartz (Titanium-coated Quartz)
Silicon Dioxide (SiO2) with metallic vapor coating
mineral
Nickel
Nickel (Ni)
mineral
Likely blue glass or synthetic gemstone jewelry
Uncertain; possibly synthetic spinel, cubic zirconia, or blue glass
gemstone
Iron Meteorite
Iron-Nickel Meteorite (primarily composed of kamacite and taenite alloys)
Mineral