Blue Goldstone
Goldstone (artificial glass)
Mineral (man-made glass, not natural)
Category
Mineral (Man Made Glass, Not Natural)
Browse mineral (man made glass, not natural) specimens identified by the Rock Identifier community.
Learn about Mineral (Man Made Glass, Not Natural) in the encyclopedia
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Opalite
Synthetic glass / Opalized glass
gemstone
Opalite
Synthetic glass / Opaque silicious glass
gemstone
Blue goldstone (man-made glass)
Copper-bearing aventurine glass; synthetic silicate glass
mineral
Opalite
Synthesized glass / Silicon dioxide glass
gemstone
Opalite
Synthetic glass / Simulated opal
gemstone
Opalite (likely man-made glass)
Opalite is a trade name for opalescent glass, not a natural mineral; composition is typically silica glass with additives
mineral
Blue Obsidian (Cullet Glass)
Man-made silicate glass
mineral
Opalite
Synthetic Opalite Glass / Opalized Glass
gemstone
Blue opalescent glass-like gemstone (possibly imitation opalite)
Likely man-made opalite glass; composition varies, typically silica-based glass
gemstone
Opalite
Synthetic glass / Opalized glass
gemstone
Opalite
Man-made opalized glass
mineral
Opalite
Synthesized glass / Silicon dioxide
gemstone
Opalite
Synthetic Opalite (Man-made glass)
mineral
Blue crystal pendant (likely blue glass or synthetic crystal)
Not identifiable from the image; possibly synthetic quartz or glass, rather than a natural mineral
gemstone
Green Obsidian Sphere (man-made glass)
Vitreous Silica with Chromium/Iron additives
mineralogical simulant
Opalite
Synthetic glass (SiO2 + impurities)
mineral
Blue Goldstone
Man-made glass infused with copper crystals
mineral
Goldstone
Man-made glass with copper inclusions
gemstone
Sea Glass
Man-made silicate glass
mineral
Red glassy gemstone, possibly garnet
Unidentified red transparent material; garnet group (X₃Y₂(SiO₄)₃) is a possibility
gemstone
Blue-green faceted gemstone, possibly glass or synthetic material
Not identifiable from the image; possible synthetic spinel or glass
gemstone
Cullet Glass / Slag Glass
Amorphous silica glass
man-made glass / industrial byproduct
Opalite
Synthetic glass / Opaque silicious glass
gemstone
Faceted clear gemstone in a gold-colored setting
Unidentified transparent faceted stone; possibly quartz, glass, or another colorless gem
gemstone
Opalite
Man-made opalescent glass
gemstone
Opalite
Man-made Glass (Synthetic Opalized Glass)
mineral
Carved opalite pendant
Opalite (man-made opalescent glass; not a natural mineral)
gemstone
Small black stone fragment (possibly obsidian)
Unidentified dark rock; obsidian is volcanic glass (composition typically rhyolitic)
igneous
Goldstone
Aventurine Glass (Man-made)
mineral
Opalite
Synthetic Opalized Glass
gemstone
Sea Glass
Man-made silicate glass
sedimentary
Cobalt Blue Glass / Cullet Glass
Silicon dioxide (Amorphous man-made glass)
mineral
Opalite-style glass pendant
Man-made opalescent glass (not natural opal)
mineral
Opalite
Synthetic Glass (Simulated Opal)
gemstone
Blue Obsidian
Volcanic Glass (Amorphous)
gemstone
Opalite
Synthetic Opalized Glass / Man-made Glass
gemstone
Opalite (a synthetic glass)
Silicon Dioxide (SiO2) with various additives; not a true mineral but a man-made gem simulant
Mineral Simulant (Synthetic Glass)
Blue Goldstone
Man-made glass with cobalt and metal flecks
man-made glass
Tumbled opalite (likely man-made glass)
Opalite, a trade name for opalescent glass; not natural opal
mineral
Opalite (Synthetic Opalized Glass)
Synthetic Silicon Dioxide (SiO2) glass
mineral
Blue opalite glass cabochon (likely imitation opal)
Man-made opalescent glass; not a natural mineral
gemstone