Chert / Jasper
Silicon Dioxide (SiO₂)
Category
Browse anthropogenic (man made industrial deposit) specimens identified by the Rock Identifier community.
Chert / Jasper
Silicon Dioxide (SiO₂)
Quartz Geode Fragment
Silicon Dioxide (SiO2)
Diamond in Kimberlite
Diamond in Kimberlite Matrix (Diamond: C, Kimberlite: complex Potassic Peridotite)
Banded Calcite or Travertine
Calcium Carbonate (CaCO3)
Silver (Native Silver)
Native Silver (Ag)
Ferrous Slag
Fused calcium-iron silicates (Industrial Slag)
Diamond (as featured in jewelry)
Diamond (C - pure carbon)
Chalk
Micrite (primarily Calcium Carbonate, CaCO3)
Terrazzo (with Marble and Granite fragments)
Cementitious or resinous composite containing Calcium Carbonate (CaCO3) and Silicates
Ferro-Manganese Slag
Vitreous Silicate Slag
Diamond
Cubic 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)
Sea Glass (Kelly Green)
Amorphous Silica (Silicon Dioxide with Iron/Chromium additives)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Chert
Silicon dioxide (SiO2)
Green Slag Glass
Amorphous Silicon Dioxide (with metallic impurities)
Sandstone (Ferruginous)
Arenite (SiO2 with Fe2O3 inclusions)
Quartz Geode Fragment
Silicon Dioxide (SiO2)
Silver (Native or Alloyed)
Ag (Argentum)
Granite (Pegmatitic)
Phaneritic Felsic Igneous Rock
Diamond (in jewelry setting)
Carbon (C)
Ferrochrome Slag
Anthropogenic silicate/oxide glass (Complex silicate matrix with Cr-Fe-Si inclusions)
Amethyst
Amethyst (Silicon Dioxide - SiO2 with Iron impurities)
Green Slag Glass
Cullet (Amorphous Silicon Dioxide with impurities)
Crushed Limestone
Calcium Carbonate (CaCO3)
Synthetic Blue Aura Quartz
Silicon Dioxide (SiO2) with Metallic Infusion
Diamond (in a cluster setting)
Crystallized Carbon (C)
Fluorite
Fluorite (Calcium Fluoride, CaF2)
Chert (Nodule)
Chert (Alpha-Quartz, SiO2)
Iron Slag
Iron smelting byproduct (Glassy/vesicular silicate)
Chert (and Jasper/Chalcedony mixture)
Microcrystalline Quartz (SiO2)
Green Glass Cullet / Recycled Glass
Amorphous Silicon Dioxide (SiO2) with various metal oxides
Goldstone
N/A (Synthetic Glass with Copper Inclusions)
Peridot (Olivine)
Olivine (Magnesium Iron Silicate - (Mg, Fe)2SiO4)
Smoky Quartz
Smoky Quartz (Silicon Dioxide, SiO2)
Grey Agate (Tumbled)
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
Rose Quartz Beads
SiO2 (Silicon Dioxide with trace inclusions of Ti, Fe, or Mn)
Silver (Jewelry form)
Native Silver (Ag)
Diamond (Cluster Ring)
Carbon (C)