Blue Goldstone
Aventurine Glass (SiO2 with Cobalt/Copper inclusions)
man-made glass
Category
Synthetic Glass (Man Made)
Browse synthetic glass (man made) specimens identified by the Rock Identifier community.
Learn about Synthetic Glass (Man Made) in the encyclopedia
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Quartz pebble (Quartztite fragment)
Silicon Dioxide (SiO2)
mineral
Red gemstone ring, likely garnet or synthetic ruby
Possibly almandine garnet (Fe₃Al₂(SiO₄)₃) or corundum/ruby (Al₂O₃); image alone cannot distinguish
gemstone
Man-made Crystal (Lead Glass)
Lead oxide-doped Silica Glass (approx. SiO2 + PbO)
Mineraloid/Synthetic Material
Sea Glass
Man-made silicate glass
sedimentary
Note: This is a Man-Made Object (Costume/Prop Patch)
Synthetic fiber and pigments (Cellulose/Plastic-based composite)
Non-geological
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
Cullet (Slag Glass)
Amorphous Silica (SiO2) with various metal oxide colorants
mineraloid / anthropogenic
Dragon's Breath (Mexican Opal Glass)
Artisan Foil Glass (SiO2 based)
mineraloid
Blue Goldstone
Synthetic glass with copper or cobalt/manganese inclusions
man-made glass
Sea Glass
Man-made vitreous material
mineral
Pearl and Garnet Glass
Calcium Carbonate (CaCO3) for pearl; Silicon Dioxide (SiO2) for glass
mineral and glass
Slag Glass
Amorphous Silicate (Man-made)
industrial byproduct
One Pound Coin (UK)
Nickel-Brass Alloy (Cu-Zn-Ni)
mineral
Cullet Glass (Slag Glass)
Amorphous Silicon Dioxide (Industrial Man-made)
mineraloid
Polymer Clay (Mock Mineral)
Polyvinyl chloride (PVC) with plasticizers and pigment
Synthetic material (Not a natural rock/mineral)
Goldstone (Red)
Aventurine Glass (SiO2 + Cu)
Synthetic Glass (Often categorized as a simulated mineral)
Tumbled Clear Quartz/Rock Crystal
Silicon Dioxide (SiO2)
mineral
Note on Image Identification: Textile
N/A (Anthropogenic material)
not a rock
Terrazzo (Man-made Composite)
Cementitious or Resin-bound Lithic Composite
sedimentary (artificial)
Tumbled milky quartz pebble
Quartz (silicon dioxide, SiO₂), opaque-to-translucent milky variety
mineral
Cullet Glass (Slag)
Amorphous Silicon Dioxide (Man-made)
Mineraloid
Green Quartz / Chrysoprase / Sea Glass
Silicon Dioxide (SiO2)
mineral
Man-made Jewelry Charm (Enameled Metal)
Not a natural mineral; composed of base metal alloy (likely zinc or brass) and epoxy resin/enamel.
Synthetic / Manufactured Artifact
Artificial Rock Face (Faux Rock)
Glass Fiber Reinforced Concrete (GFRC)
man-made/construction material
Goldstone (Brown/Gold variety)
Aventurine Glass (SiO2 with Copper inclusions)
Synthetic/Man-made glass (often mistaken for a mineral)
Blue Slag Glass
Anthropogenic Amorphous Silicon Dioxide
mineral
Diamond (or Simulant)
Carbon (C) or relevant simulant formula (e.g., ZrO2 for Cubic Zirconia)
gemstone
Blue Goldstone
Aventurine glass (Synthetic borosilicate glass with cobalt and metallic inclusions)
man-made glass
Slag Glass (Cullet)
Amorphous Silica (man-made), primarily SiO2 with trace metal oxides
Mineraloid / Synthetic Glass
Diamond (or Diamond Simulant)
Carbon (C) or Cubic Zirconia (ZrO2)
gemstone
Metal Chain Belt with Square Plates
Not applicable (man-made)
Man-made Object (Metalwork)
Blue Goldstone
Aventurine Glass
Man-made mineral simulant (Glass)
Sea Glass
Amorphous silicon dioxide (man-made glass weathered by nature)
mineral
Blue Slag Glass
Man-made Silicon Dioxide (Amorphous)
Anthropogenic (Man-made)
Diamond
Native Carbon (C)
gemstone
Green Sea Glass
Man-made silicate glass (weathered)
sedimentary
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite (K(Al,Cr)2AlSi3O10(OH)2)
metamorphic
Not a geological specimen
N/A (man-made object)
N/A
Green Aventurine
SiO2 (Silicon Dioxide with Fuchsite inclusions)
mineral
Not a rock, mineral, or geological specimen
N/A
Aventurine Quartz
Silicon Dioxide (SiO2) with Fuchsite inclusions
metamorphic