Synthetic Resin / Plastic Figurine
Synthetic Polymer (Copolymer of Polyethylene or Resin)
Mineraloid-like Synthetic Material
Category
Mineraloid (Man Made)
Browse mineraloid (man made) specimens identified by the Rock Identifier community.
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Opalite
Synthetic glass / Opalized glass
gemstone
Opalite
Synthetic Glass, SiO2 base with metallic inclusions
mineraloid (synthetic)
Opalite
Synthesized glass / Silicon dioxide glass
gemstone
Opalite
Synthetic glass / Simulated opal
gemstone
Opalite
Synthetic Opalised Glass
mineraloid (synthetic)
Metal Chain Belt with Square Plates
Not applicable (man-made)
Man-made Object (Metalwork)
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
Synthetic Resin Charm (Seal Shape)
Polymer Resin with plastic glitter / Polyethylene terephthalate glitters
Synthetic material (Not a rock or mineral)
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
Green Slag
Anthropogenic Silicate Glass
Mineraloid (Industrial byproduct)
Blue goldstone (man-made glass)
Copper-bearing aventurine glass; synthetic silicate glass
mineral
Sea Glass
Amorphous Silicon Dioxide (SiO2)
mineral
Cullet Glass / Slag Glass
Amorphous silica glass
man-made glass / industrial byproduct
One Pound Coin (UK)
Nickel-Brass Alloy (Cu-Zn-Ni)
mineral
Man-made Glass (Tumbled/Shaped)
Amorphous Silicon Dioxide (SiO2) with metal oxide colorants
Mineraloid (synthetic)
Opalite
Synthetic glass / Opaque silicious glass
gemstone
Opalite
Synthetic glass / Opalized glass
gemstone
Diamond (or Simulant)
Carbon (C) or relevant simulant formula (e.g., ZrO2 for Cubic Zirconia)
gemstone
Red Slag Glass
Amorphous Silica (Industrial byproduct with metallic oxide dopants)
Mineraloid / Industrial Byproduct
Not a geological specimen
N/A (man-made object)
N/A
ABS Plastic (Acrylonitrile Butadiene Styrene)
(C8H8)x·(C4H6)y·(C3H3N)z
Synthetic Polymer (Synthetic Material)
Opalite
Synthetic glass (SiO2 + impurities)
mineral
Diamond
Native Carbon (C)
gemstone
Sea Glass (specifically Frosted White)
Amorphous Silica (substance: Sodium-calcium silicate glass)
Mineraloid (Anthropogenic/Man-made rock)
Cullet Glass (sometimes mistaken for Blue Obsidian or Slag)
Amorphous Silicon Dioxide (SiO2) with chemical additives (e.g., Cobalt for blue color)
mineraloid / industrial byproduct
Sea Glass
Man-made silicate glass
mineral
Sea Glass
Man-made silicate glass
sedimentary
Sea Glass
Man-made silicate glass
mineral
Sea Glass
Man-made silicate glass
sedimentary
Sea Glass
Man-made silicate glass
mineral
Sea Glass
Man-made vitreous material
gemstone
Sea Glass
Man-made silicate glass
sedimentary
Sea Glass
Man-made vitreous material
mineral
Sea Glass
Man-made silicate glass
mineral
Sea Glass
Man-made silicate glass
sedimentary
Blue Obsidian (Cullet Glass)
Man-made silicate glass
mineral
Sea Glass
Man-made silicate glass
mineral
Opalite
Man-made opalized glass
mineral
Goldstone
Aventurine Glass (Man-made)
mineral
Sea Glass
Man-made silicate glass
gemstone
Slag Glass
Amorphous Silicate (Man-made)
industrial byproduct