Diamond in Kimberlite
Diamond in Kimberlite Matrix (Diamond: C, Kimberlite: complex Potassic Peridotite)
Category
Browse anthropogenic (man made industrial byproduct) specimens identified by the Rock Identifier community.
Diamond in Kimberlite
Diamond in Kimberlite Matrix (Diamond: C, Kimberlite: complex Potassic Peridotite)
Diamond (as featured in jewelry)
Diamond (C - pure carbon)
Terrazzo (with Marble and Granite fragments)
Cementitious or resinous composite containing Calcium Carbonate (CaCO3) and Silicates
Diamond
Cubic carbon (C)
Sea Glass (Kelly Green)
Amorphous Silica (Silicon Dioxide with Iron/Chromium additives)
Corundum (Sapphire variant)
Aluminium oxide (Al2O3)
Diamond
Diamond (pure carbon C)
Sea Glass (Frosted Glass)
Amorphous Silica (SiO2) with various additives
Sea Glass (Uranium/Vaseline Glass variant)
Silicon Dioxide (SiO2) with trace Uranium Oxide (U3O8)
Sandstone (Ferruginous)
Arenite (SiO2 with Fe2O3 inclusions)
Granite (Pegmatitic)
Phaneritic Felsic Igneous Rock
Diamond
Carbon (C)
Rough Diamond
Diamond (pure Carbon, C)
Diamond (in jewelry setting)
Carbon (C)
Synthetic Blue Aura Quartz
Silicon Dioxide (SiO2) with Metallic Infusion
Chert (Nodule)
Chert (Alpha-Quartz, SiO2)
Chert (and Jasper/Chalcedony mixture)
Microcrystalline Quartz (SiO2)
Diamond (in jewelry setting)
Adamantine Carbon (C)
Diamond (in a jewelry setting)
Cubic Carbon (C)
Green Glass Cullet / Recycled Glass
Amorphous Silicon Dioxide (SiO2) with various metal oxides
Goldstone
N/A (Synthetic Glass with Copper Inclusions)
Smoky Quartz
Smoky Quartz (Silicon Dioxide, SiO2)
Note: Item is not a geological specimen
Polyester mesh and Ethylene-vinyl acetate (EVA) polymer
Man-made Green Quartz (Lab-grown or Treated)
Silicon Dioxide (SiO2) with artificial coloration
Diamond (Cluster Ring)
Carbon (C)
Green Aventurine
Quartz (SiO2) with Fuchsite inclusions
Sandstone
Arenite (composed primarily of SiO2)
Chert (and associated river cobbles)
Silicon dioxide (SiO2)
Sandstone (Red/Brown Variety)
Arenite (composed primarily of SiO2 with Fe2O3 iron oxide inclusions)
Chert (Flint)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Chert (and Flint)
Silicon Dioxide (SiO2)
United States Quarter Dollar
Cupronickel Clad Alloy (75% Copper, 25% Nickel over a 100% Copper core)
Rough Diamond
Diamond (pure Carbon, C)
Diamond in Kimberlite
Diamond (C in Kimberlite Matrix)
Malaysian 50 Sen Coin
Coinage (specific alloy unknown without metallurgical analysis, but typically brass or bronze for this denomination and era)
Desert Rose (also known as Sand Rose)
Gypsum (CaSO4·2H2O) or Barite (BaSO4) with sand inclusions
Chert (specifically Zebra Chert/Flint)
Silicon Dioxide (SiO2)
Cardstock (Paper)
Cellulose (C6H10O5)n
Blue Goldstone
Aventurine Glass (SiO2 with Cobalt/Copper inclusions)
Dyed Quartz (often sold as 'Blue Quartz' or 'Blue Agate')
Silicon Dioxide (SiO2) with artificial pigment
Sea Glass (Teal/Turquoise)
Amorphous Silica (SiO2) with trace metal oxides
Sea Glass (Turquoise/Aqua)
Amorphous Silica (SiO2) with transition metal dopants