Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Category
Browse man made material (simulated mineral) specimens identified by the Rock Identifier community.
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Desert Rose (also known as Sand Rose)
Gypsum (CaSO4·2H2O) or Barite (BaSO4) with sand inclusions
Specular Hematite (Specularite)
Iron Oxide (Fe2O3)
Sandstone
Arenite (SiO2 based typically)
Amber
Succinite (Carbon-based organic compound; approximate formula C10H16O)
Rough Diamond
Diamond (pure Carbon, C)
Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite
Blue Sphalerite (likely dyed or treated Druzy Quartz/Agate)
Zinc Sulfide (ZnS) or Silicon Dioxide (SiO2) with trade-name enhancement
Note: No specimen visible
Quartz
Silicon Dioxide (SiO₂)
Smoky Quartz
Smoky Quartz (Silicon Dioxide - SiO2)
Marble
Metamorphic Limestone (CaCO3)
Obsidian (Black)
Obsidian (High-silica volcanic glass)
Sandstone
Arenite
Pearl
Calcium Carbonate (CaCO3) with Conchiolin
Smoky Quartz Cluster
Smoky Quartz (Silicon Dioxide - SiO2)
Smoky Quartz
Smoky Quartz (Silicon Dioxide, SiO2)
Rough Diamond
Diamond (pure Carbon, C)
Natural Pearl (appearing in a jewelry setting)
Calcium Carbonate (mostly Aragonite), CaCO3 with Conchiolin
Green Apatite on Albite
Fluorapatite [Ca5(PO4)3F] on Albite [Na(AlSi3O8)]
Granite
Granite (a phaneritic intrusive igneous rock)
Blue Goldstone
Aventurine Glass (Silicon Dioxide with metal inclusions)
Granite
Granite (phaneritic intrusive igneous rock consisting of quartz, feldspar, and mica)
Diamond in Kimberlite
Diamond in Kimberlite Matrix (Diamond: C, Kimberlite: complex Potassic Peridotite)
Sandstone (Ferruginous)
Arenite (SiO2 with Fe2O3 inclusions)
Smoky Quartz
Silicon Dioxide (SiO2)
Granite
Phaneritic Felsic Igneous Rock
Blue Sea Glass
Amorphous Silica (Anthropogenic glass)
Pearl
Calcium Carbonate (mostly Aragonite), CaCO3 (with conchiolin)
Dyed Quartz (imitating Emerald/Green Quartz)
Silicon Dioxide (SiO2) with artificial pigment
Limonite (Iron Ore)
Limonite (FeO(OH)·nH2O)
Chalk
CaCO3 (primarily Calcium Carbonate), biogenic sedimentary rock
Blue Quartz (Aventurine)
Silicon Dioxide (SiO2) with fibrous inclusions (commonly Dumortierite)
Gold
Native Gold (Au)
Smoky Quartz
Silicon Dioxide (SiO2) with aluminum impurities
Amazonite
KAlSi3O8 (Potassium Aluminum Silicate)
Ferrosilicon Slag (Industrial Vitrified Glass)
Vitreous Silicate Residue
Petrified Wood (Jet or Coalified Wood appearance)
Silicified wood (principally SiO2) or Carbonized Wood
Petrified Wood
Silicified Wood (primarily Quartz/Chalcedony, formula SiO2)
Pyrulite (Pyrite / Chalcopyrite)
Iron Sulfide (FeS2) or Copper Iron Sulfide (CuFeS2)
Pearl
Aragonite (CaCO3 with conchiolin)
Blue Apatite
Apatite (Calcium Phosphate) - Ca5(PO4)3(F,Cl,OH)