Carnelian Agate
Silicon Dioxide (SiO2) with iron oxide inclusions
mineral
Category
Mineral (Man Enhanced)
Browse mineral (man enhanced) specimens identified by the Rock Identifier community.
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Peacock Ore (Bornite or Iridescent Chalcopyrite)
Bornite (Cu5FeS4) or Chalcopyrite (CuFeS2) with tarnish
mineral
Eye Agate
Silicon Dioxide (SiO2) - Banded Chalcedony
mineral
Opalite (a synthetic glass)
Silicon Dioxide (SiO2) with various additives; not a true mineral but a man-made gem simulant
Mineral Simulant (Synthetic Glass)
Peacock Ore (Chalcopyrite/Bornite)
Bornite (Cu5FeS4) or iridescent treated Chalcopyrite (CuFeS2)
Mineral
Larimar
Pectolite
mineral
Aura Quartz (specifically Titanium Aura Quartz)
Titanium-coated Silicon Dioxide (SiO2 + Ti Coating)
mineral
Polished brecciated jasper
Brecciated jasper, chiefly microcrystalline quartz (SiO₂) with iron-oxide and other mineral inclusions
sedimentary
Cherry Quartz with Rose Quartz
Crystalline Quartz (SiO2) with glass-based synthetic components
gemstone
Asphalt (Bituminous Concrete)
Bituminous mix containing aggregates and petroleum-based binder (CnH2n+2)
not a rock (anthropogenic material/technofossil)
Slag Glass
Vitreous Silicate Residue
industrial byproduct (anthropogenic rock)
Pegmatitic pink feldspar–quartz rock
Granitic pegmatite; chiefly microcline/orthoclase feldspar (KAlSi₃O₈), quartz (SiO₂), and minor mica
igneous
Concretion (Sandstone)
Carbonate-cemented Sandstone Concretion
sedimentary
Druzy quartz geode slice
Quartz, SiO₂, commonly lining a chalcedony-rich geode
mineral
Blue Chalcedony (likely dyed)
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz
mineral
Tumbled Gray Agate
Silicon Dioxide (SiO2)
mineral
Black Onyx
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz
mineral
Red Garnet (Almandine-Pyrope series)
Garnet Group, Almandine (Fe3Al2(SiO4)3) or Pyrope (Mg3Al2(SiO4)3)
mineral
Corundum (Sapphire/Ruby in Matrix)
Corundum (Al2O3)
mineral
Tumbled blue jasper or blue-dyed jasper
Microcrystalline quartz (chalcedony), SiO₂; blue coloration may be natural or dye-enhanced
mineral
Moissanite
Silicon Carbide (SiC)
mineral
Diamond
Carbon (C)
mineral
Costume Jewelry with Synthetic Gemstones
Synthetic Cubic Zirconia and Glass (SiO2 / ZrO2)
mineral
Titanium Aura Quartz
Titanium bonded Silicon Dioxide (SiO2 + Ti)
mineral
Clear quartz crystal (likely quartz fragment)
Quartz, silicon dioxide (SiO₂)
mineral
Black Opal
Amorphous hydrated silica (SiO2 nH2O)
mineral
Asphalt Concrete (Bituminous Concrete)
Bituminous aggregate
sedimentary
Blue Calcite
Calcium Carbonate (CaCO3)
mineral
Dyed Dragon Vein Agate
Silicon Dioxide (SiO2) with artificial pigment
mineral
Asphalt Concrete
Bituminous Concrete (Anthropic Rock)
sedimentary
Black Obsidian
Obsidian (Volcanic Glass, SiO2 + impurities)
igneous
Opalite crescent pendant
Opalite (man-made opalescent glass; not a natural mineral)
gemstone
Milky quartz (likely rough quartz crystal)
Quartz, silicon dioxide (SiO₂)
mineral
Chakra Stone (Composite / Man-made Bonded Gemstones)
Composite of Quartz, Lapis Lazuli, Aventurine, Tiger's Eye, and Jasper (SiO2, (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, etc.)
Combined Minerals / Metaphysical stones
Dyed Agate / Quartz (Tumbled)
Silicon Dioxide (SiO2) with artificial dye
mineral
White pebble, likely quartz or calcite
Indeterminate from image; possible microcrystalline quartz (SiO₂) or calcite (CaCO₃)
mineral
Diamond
Carbon (C)
mineral
Diamond
Native Carbon (C)
mineral
Diamond (Colorless/White)
Carbon (C)
mineral
Blue Slag Glass
Anthropogenic Amorphous Silicon Dioxide
mineral
Dyed Agate
SiO2 (Silicon Dioxide)
mineral
Blue Agate Geode Slice
Silicon Dioxide (SiO2) - Chalcedony variety
mineral