Cubic Zirconia (Diamond Simulant)
Zirconium Dioxide (ZrO2)
gemstone
Category
Man Made Object (Ring)
Browse man made object (ring) specimens identified by the Rock Identifier community.
Learn about Man Made Object (Ring) in the encyclopedia
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Slag Glass
Anthropogenic Amorphous Silicon Dioxide
mineral
Opalite
Synthetic Silicon Dioxide (SiO2)
mineral
Rainbow Hematite (Titanium Coated)
Iron(III) oxide (Fe2O3) with Titanium/Metal Oxide coating
mineral
Pearl
Calcium Carbonate (Aragonite/Calcite) with Conchiolin
gemstone
Moissanite
Silicon Carbide (SiC)
mineral
Opalite (Man-made Glass)
Synthetic Opalised Glass
mineral
Opalite
Man-made Synthetic Glass (Silicon Dioxide with metal additives)
mineral
Concrete
Anthropogenic Sedimentary Rock (Hydrated Calcium Silicate)
sedimentary (anthropogenic / man-made)
Bloodstone
Chalcedony (Variety Heliotrope), SiO2
mineral
Diamond
Native Carbon (C)
gemstone
Cherry Quartz with Rose Quartz
Crystalline Quartz (SiO2) with glass-based synthetic components
gemstone
Blue Goldstone
Aventurine Glass
Man-made glass (often grouped with minerals in lapidary)
Strawberry Quartz
Silicon Dioxide (SiO2) with Hematite/Goethite inclusions
mineral
Aura Quartz
Titanium-coated Silicon Dioxide (SiO2)
mineral
Concrete with Aggregate
Composite construction material; primary matrix is Calcium Silicate Hydrate (C-S-H)
anthropogenic (human-made) sedimentary-like material
Ferrochrome Slag
Anthropogenic slag (Fe-Cr alloy waste)
industrial byproduct
Goldstone (Red)
Aventurine Glass (Cupriferous glass)
Synthetic Glass (Man-made)
Sea Glass (Uranium/Vaseline Glass variant)
Silicon Dioxide (SiO2) with trace Uranium Oxide (U3O8)
man-made silicate (anthropogenic glass)
Opalite
Synthetic Opalized Glass / Man-made Glass
gemstone
Opalite
Synthetic Glass / Man-made Opal Simulant
gemstone
Goldstone
Avventurina (Man-made Glass with Copper inclusions)
mineral
Opalite
Man-made Glass (Synthetic Opalized Glass)
gemstone
Opalite
Man-made glass (traditionally simulated Opal)
mineral
Opalite
Synthetic Glass (Simulated Moonstone/Opal)
gemstone
Diamond / Clear Quartz / Glass paste
Carbon (Diamond) / Silicon Dioxide (Quartz)
gemstone
Goldstone
Aventurine glass (Synthetic glass with copper inclusions)
mineraloid / man-made glass
Porcelain (Stoneware Ceramic)
Mullite / Silica-glass composite (Al6Si2O13)
metamorphic (man-made)
Agate
Silicon Dioxide (Chalcedony), SiO2
gemstone
Goldstone (Brown/Gold variety)
Aventurine Glass (SiO2 with Copper inclusions)
Synthetic/Man-made glass (often mistaken for a mineral)
Blue Goldstone
Goldstone (artificial glass)
Mineral (man-made glass, not natural)
Fluorite (Polished Point/Tower)
Calcium Fluoride (CaF2)
mineral
Quartz (Agate/Chalcedony)
Silicon Dioxide (SiO2)
mineral
Diamond
Carbon (C)
mineral
Opalite
Man-made opalescent glass (SiO2 + metal oxides)
mineral (synthetic)
Polished black stone, likely black obsidian
Obsidian (volcanic glass), chiefly silica-rich rhyolitic composition
igneous
Sandstone Anvil / Nutting Stone
Quartzose Sandstone (Sedimentary Rock)
sedimentary
Quartzite (Engineered Stone)
Silicon Dioxide (SiO2) based synthetic composite
metamorphic
Pink Tumbled Quartz (Dyed)
Silicon Dioxide (SiO2)
mineral
Dyed Crackle Quartz (Green)
Quenching-treated Quartz (Silicon Dioxide, SiO2)
mineral
Chert Concretion (with typical hematite/limonite staining)
Sedimentary Concretion (SiO2 with FeO(OH)⋅nH2O)
sedimentary
Pyrite Concretion (Grapestone)
Iron Sulfide (FeS2) Concretion
sedimentary