Blue Sea Glass
Amorphous Silica (Anthropogenic glass)
not a rock (man-made origin)
Category
Man Made Mineral Simulant (Glass)
Browse man made mineral simulant (glass) specimens identified by the Rock Identifier community.
Learn about Man Made Mineral Simulant (Glass) in the encyclopedia
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Carved Stone Turtle
Carved Soapstone and Quartz
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Moissanite
Silicon Carbide (SiC)
mineral
Diamond
Carbon (C)
mineral
Sandstone
Arenite (SiO2 primarily)
sedimentary
Diamond (in jewelry)
Carbon (C)
mineral
Obsidian
Volcanic Glass (Amorphous SiO2)
igneous
Sandstone (likely Quartzose Sandstone)
Arenite
sedimentary
Diamond (appearing in jewelry)
Diamond (pure Carbon, C)
mineral
Blue Quartz (Aventurine)
Silicon Dioxide (SiO2) with fibrous inclusions (commonly Dumortierite)
mineral
Diamond (Cut jewelry specimen)
Diamond (pure Carbon, C)
mineral
Natural or Cultured Pearl
Calcium Carbonate (Aragonite and Conchiolin), CaCO3
Mineral (Organic)
Chert (and/or Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Dyed Pink Quartzite (Jadeite Simulant)
Silicon Dioxide (SiO2) with organic dye
metamorphic
Chert
Chert (Microcrystalline Quartz)
sedimentary
Tumbled milky quartz
Quartz (silicon dioxide, SiO₂)
mineral
Sandstone (specifically Arkose or Quartz Arenite)
Arenite (primarily SiO2 with possible Feldspar)
sedimentary
Diamond
Carbon (C)
mineral
Diamond (Colorless/White)
Carbon (C)
mineral
Chert (Flint)
Silicon dioxide (SiO2)
sedimentary
Sandstone
Arenite (variable SiO2 composition)
sedimentary
Green Glass Cullet / Recycled Glass
Amorphous Silicon Dioxide (SiO2) with various metal oxides
Man-made Glass (Not a natural rock or mineral)
Obsidian
Volcanic glass (SiO2)
igneous
Amethyst
Silicon Dioxide (SiO2)
mineral
Diamond
Carbon (C)
mineral
Diamond (in a jewelry setting)
Carbon (C)
mineral
Pearl
Pearl (Calcium Carbonate with organic conchiolin, CaCO3)
mineral
Sandstone
Arenite (primarily SiO2)
sedimentary
Diamond (in Jewelry)
Diamond (Carbon, C)
mineral
Banded Chert / Chalcedony
Silicon Dioxide (SiO2)
sedimentary
Sandstone
Arenite (SiO2 primarily)
sedimentary
Amber
Succinite (Carbon-based organic compound; approximate formula C10H16O)
Mineraloid
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Amethyst (with Pyrite and other minerals)
Silicon Dioxide (SiO2)
mineral
Goldstone and Aura Quartz
Cuprous Glass (Goldstone) and Titanium-coated SiO2 (Aura Quartz)
Mineral/Glass Specimen
Diamond
Native Carbon (C)
mineral
Chert (Jasper variety)
Microcrystalline Quartz (SiO2)
sedimentary
Granite
Phaneritic Felsic Igneous Rock
igneous
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Jasper variety)
Silicon Dioxide (SiO2)
sedimentary
Chert (specifically Jasper or Flint)
Cryptocrystalline Quartz (SiO2)
sedimentary