Blue glass-like tumbled specimen
Most likely cobalt-blue slag glass or manufactured glass; not confidently identifiable as a natural mineral from the image
mineral
Category
Man Made Material, Not A Natural Rock Or Mineral Specimen
Browse man made material, not a natural rock or mineral specimen specimens identified by the Rock Identifier community.
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Glass
Amorphous Silicon Dioxide (SiO2)
mineraloid
Slag
Metallurgical Slag
igneous
Quartz (Engineered Stone Countertop)
Silicon Dioxide (SiO2) with polymer resins
Sedimentary-like (Industrial Composite)
Opalite
Synthetic Opalite Glass
mineraloid (man-made)
Dragon's Breath (Mexican Opal Glass)
Artisan Foil Glass (SiO2 based)
mineraloid
Goldstone (with Tiger's Eye and Quartz)
Aventurine glass (Synthetic SiO2 with Cu inclusions)
mineral
Zinc Alloy (Silver-plated)
Zinc Alloy Casting (Zn-Al-Mg-Cu)
mineral (refined metal)
Hematite
Iron(III) oxide (Fe2O3)
mineral
Sandstone (with Liesegang rings or joints)
Clastic Sedimentary Rock (primarily Quartz with Iron Oxide cement)
sedimentary
Aura Quartz (Titanium Quartz)
Titanium-coated Silicon Dioxide (SiO2 + Ti)
mineral
Opalite
Man-made Opalized Glass (Synthetic Glass)
gemstone
Opalite
Synthetic Opalized Glass
mineraloid (man-made)
Titanium Aura Quartz
Titanium bonded Silicon Dioxide (SiO2 + Ti)
mineral
Asphalt Chunk
Asphalt concrete
man-made composite
Opalite
Synthetic Opalite (Man-made glass)
mineral
Opalite crescent pendant
Opalite (man-made opalescent glass; not a natural mineral)
gemstone
Carved Mottled Greenish-Yellow Crystal/Glass Object
Unknown; possibly a form of quartz (chalcedony/jadeite/nephrite) or glass/resin.
Man-made Object/Uncertain Mineral
Synthetic Resin / Plastic Figurine
Synthetic Polymer (Copolymer of Polyethylene or Resin)
Mineraloid-like Synthetic Material
Goldstone (Red)
Aventurine Glass (SiO2 + Cu)
Synthetic Glass (Often categorized as a simulated mineral)
Cullet Glass (Slag Glass)
Amorphous Silicon Dioxide (Industrial byproduct)
mineraloid
Quartzite (Engineered Stone)
Silicon Dioxide (SiO2) based synthetic composite
metamorphic
Terrazzo (Man-made Composite)
Cementitious or Resin-bound Lithic Composite
sedimentary (artificial)
Dyed Aura Quartz
Silicon Dioxide (SiO2) with metallic coating
mineral
Diamond (or Simulant)
Carbon (C)
gemstone
Slag Glass
Vitreous Silicate Residue
industrial byproduct (anthropogenic rock)
Chert (Arrowheads)
Microcrystalline Quartz (SiO2)
sedimentary
Slag
Metallurgical by-product
Anthropogenic (Man-made material)
Opalite
Synthetic Glass (Simulated Opal)
gemstone
Titanium Aura Quartz
Titanium-coated Silicon Dioxide (SiO2)
gemstone
Banded Sandstone
Arenite with Liesegang banding
sedimentary
Sea Glass
Man-made vitreous material
mineral
Aluminum Slag
Anthropogenic Aluminum (Al)
mineral
Titanium Coated Kyanite (Aura Kyanite)
Aluminosilicate (Al2SiO5) with a Titanium-Niobium vacuum-deposited coating
metamorphic
Sandstone Anvil / Nutting Stone
Quartzose Sandstone (Sedimentary Rock)
sedimentary
Carved Stone Turtle
Carved Soapstone and Quartz
mineral
Aura Quartz (specifically Titanium Aura Quartz)
Titanium-coated Silicon Dioxide (SiO2 + Ti Coating)
mineral
Diamond
Native Carbon (C)
mineral
Opalite
Synthetic Glass (SiO2 + impurities)
mineral
Slag
Glassy silicate byproduct (anthropogenic material)
industrial byproduct
Opalite
Man-made opalescent glass
gemstone
Tumbled Clear Quartz/Rock Crystal
Silicon Dioxide (SiO2)
mineral