Opalite
Man-made synthetic glass with opalescent effects (SiO2 + metal oxides)
mineraloid
Category
Synthetic (Man Made Glass)
Browse synthetic (man made glass) specimens identified by the Rock Identifier community.
Learn about Synthetic (Man Made Glass) in the encyclopedia
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Cubic Zirconia (Diamond Simulant)
Zirconium Dioxide (ZrO2)
gemstone
Cultured Marble (Synthetic)
Polymer-matrix composite (typically calcium carbonate in polyester resin)
Synthetic / Composite Material
Small clear crystal, possibly quartz or glass-like gemstone
Uncertain; likely quartz (SiO₂), but the image is insufficient to exclude man-made glass or cubic zirconia
mineral
Blue Cracked Quartz (Dyed Fire Crackle Quartz)
Silicon Dioxide (SiO2) with synthetic dye
mineral
Concrete Paver (Artificial Cementitious Rock)
Hydrated Portland Cement Aggregate
Sedimentary (Synthetic)
Cubic Zirconia (Man-made)
Cubic Zirconia (ZrO2) with Enamel and Metal Alloy
mineral
Blue Obsidian (Cullet Glass)
Man-made silicate glass
mineral
Painted River Rock
Artificially Coated Sedimentary Rock
sedimentary
Man-made Synthetic Material (Not a rock or mineral)
Polyester (Polyethylene terephthalate) / Faux Fur
Synthetic / Textile
Blue glassy mineral specimen, possibly dyed or synthetic
Uncertain; possible blue fluorite (CaF₂), dyed chalcedony, or man-made glass
mineral
Tumbled opalite (likely synthetic glass)
Opalite; typically man-made opalescent soda-lime glass, not a recognized mineral species
gemstone
Cubic Zirconia (Simulated Diamond)
Cubic Zirconia (ZrO2)
mineral
Quartzite (Engineered Stone)
Silicon Dioxide (SiO2) based synthetic composite
metamorphic
Carborundum (Silicon Carbide)
Silicon Carbide (SiC)
mineral
Goldstone (Red)
Aventurine Glass (Cupriferous glass)
Synthetic Glass (Man-made)
Opalite (a synthetic glass, often confused with Opal)
Silicon dioxide glass (SiO2nH2O, for natural opal)
Synthetic (glass)
Goldstone
N/A (Synthetic Glass with Copper Inclusions)
Manufactured Glass
Note: Item is a Synthetic/Man-made Object
Titanium-coated Stainless Steel (Fe-Cr-Ni-Ti)
Non-geological
Blue opal heart cabochon
Common opal, hydrated amorphous silica (SiO₂·nH₂O), likely blue-dyed or synthetic opalite
gemstone
Carborundum (Silicon Carbide)
Silicon Carbide (SiC)
mineral (synthetic)
Sea Glass
Man-made silicate glass
sedimentary
Sea Glass
Man-made silicate glass
mineral
Sea Glass
Man-made silicate glass
mineral
Sea Glass
Man-made silicate glass
sedimentary
Sea Glass
Man-made silicate glass
mineral
Sea Glass
Amorphous silicon dioxide
mineral
Sea Glass
Man-made silicate glass
mineral
Small black stone fragment (possibly obsidian)
Unidentified dark rock; obsidian is volcanic glass (composition typically rhyolitic)
igneous
Obsidian
Volcanic Glass
igneous
Sea Glass
Man-made silicate glass
mineral
Sea Glass
Man-made silicate glass
sedimentary
Sea Glass
Man-made silicate glass
sedimentary
Man-made Ceramic / Clay Figurine
Aluminosilicate Ceramic (Processed Clay)
Synthetic (not a rock or mineral)
Sea Glass
Man-made silicate glass
gemstone
Note: This is a Man-Made Object (Costume/Prop Patch)
Synthetic fiber and pigments (Cellulose/Plastic-based composite)
Non-geological
Dyed Crackle Quartz
Silicon Dioxide (SiO2) with synthetic dye
mineral
Hematite
Iron(III) oxide (Fe2O3)
mineral
Obsidian
Volcanic Glass
igneous
Luminous Stone (Glow-in-the-dark Synthetic/Man-made Stone)
Strontium Aluminate tinted glass or resin (Crystalline silicate/oxide mix)
mineral (synthetic)
Titanium-coated Metal Cube (Man-made Fidget Toy)
Titanium-anodized or electroplated alloy (e.g., Ti-coated Zinc or Aluminum)
Mineral alternative / Synthetic
Cullet Glass (Slag Glass)
Amorphous Silicon Dioxide (SiO2) with metallic oxide impurities
mineraloid