Chert (Yellow Jasper/Flint)
Microcrystalline Quartz (SiO2)
Category
Browse man made material (simulated mineral) specimens identified by the Rock Identifier community.
Chert (Yellow Jasper/Flint)
Microcrystalline Quartz (SiO2)
Chert (and/or Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (variations include Flint/Jasper)
Cryptocrystalline Quartz (SiO2)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Chert / Jasper
Silicon Dioxide (SiO₂)
Sandstone
Arenite (siliciclastic sedimentary rock composed mostly of quartz)
Petrified Wood (Silicified Wood)
Silicified Paleoflora (mainly Quartz, SiO2)
Chert (often called Flint)
Chert (Cryptocrystalline Quartz, SiO2)
Rough Corundum (Sapphire/Ruby mixture)
Corundum (Aluminum Oxide, Al2O3)
Diorite
Intermediate plutonic igneous rock
Diamond (in a jewelry setting)
Diamond (Carbon, C)
Synthetic Resin (Artificial Specimen)
Polyurethane or Polyester Resin
Sandstone Pebble
Ferruginous Sandstone (SiO2 with Fe2O3)
Banded Sandstone
Arenite with Liesegang banding
Chert (and Flint)
Silicon Dioxide (SiO2)
Engineered Quartz (Quartzite look-alike)
Silicon Dioxide (SiO2) composite
Aura Quartz / Rainbow Aura Quartz
Silicon Dioxide (SiO2) with metallic vapor coating
Chert (Flint)
SiO2 (Microcrystalline Quartz)
Fossilized oyster shell
Bivalvia; likely an oyster (Ostreidae), partly mineralized with calcite
Carved quartz (likely rose quartz and green aventurine/quartz)
Quartz, silicon dioxide (SiO₂); green material may be aventurine quartz or serpentine
Lapis lazuli and green-blue chalcedony jewelry
Lapis lazuli: lazurite-bearing metamorphic rock, chiefly lazurite (Na₃Ca(Al₃Si₃O₁₂)S) with calcite and pyrite; second stone: likely chrysoprase or green-blue chalcedony (microcrystalline quartz, SiO₂)
Goldstone
Avventurina (Cu + SiO2 glass)
Corundum (Pink Sapphire / Ruby)
Al2O3 (Aluminum Oxide)
Pearl
Pearl (Calcium Carbonate with organic conchiolin, CaCO3)
Chert Arrowhead
Chert (Cryptocrystalline variety of Quartz, SiO2)
Chert (Flint/Chalcedony)
Silicon Dioxide (SiO2)
Chert (Common Opal/Jasper variety)
Cryptocrystalline Quartz (SiO2)
Banded agate pendant (likely carnelian or brown-and-white chalcedony agate)
Agate, a banded variety of chalcedony; microcrystalline quartz, SiO₂, with iron-oxide coloration
Terrazzo (Synthetic Composite Rock)
Cementitious or Epoxy Resin-bound Aggregates
Quartzite
Metamorphic Quartzite (SiO2)
Chert (Flint)
Chert (SiO2)
Chert (Flint)
Silicon Dioxide (SiO2)
Chert (Flint)
Silicon Dioxide (SiO2)
Chert (Flint)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Chert (varietal Chalcedony or Flint)
Silicon dioxide (SiO2) - Microcrystalline Quartz
Chert (Flint)
Microcrystalline Quartz (SiO2)
Petrified Wood
Silicified Wood (primarily SiO2)
Diamond
Carbon (C)
Chert (Jasper variety)
Microcrystalline Quartz (SiO2)
Sandstone (specifically Arkose or Quartz Arenite)
Arenite (primarily SiO2 with possible Feldspar)
Chalk
Calcium Carbonate (CaCO3)
Diamond (or Diamond Simulant)
Carbon (C)