Chrome Diopside
Magnesium Calcium Silicate (MgCaSi2O6) containing Chromium impurities
mineral
Category
Mineral (Man Enhanced)
Browse mineral (man enhanced) specimens identified by the Rock Identifier community.
Peacock Ore (Bornite or Iridescent Chalcopyrite)
Bornite (Cu5FeS4) or Chalcopyrite (CuFeS2) with oxidation
mineral
Pink Banded Agate (Dyed)
Chalcedony (cryptocrystalline silica), chemical formula SiO2
mineral
Blue Sapphire (likely costume glass imitation)
Corundum (Al2O3) with iron/titanium impurities
mineral
Red Chalcedony (likely dyed)
Chalcedony (a variety of Quartz), SiO2
Mineral (Cryptocrystalline Quartz)
Jewelry Chain with Blue and Clear Gemstones (Likely Cubic Zirconia)
Cubic Zirconia (ZrO₂), Silver or White Gold/Platinum Alloy
Mineral (synthetic) and Metal (precious/base)
Carnelian
Carnelian (Silicon Dioxide - SiO2 with iron oxide impurities)
mineral
Carnelian
Carnelian (Silicon Dioxide - SiO2 with Hematite impurities)
Mineral
Dragon Vein Agate
Chalcedony (Quartz) - SiO2
mineral
Dyed Howlite (often sold as 'Turquenite')
Calcium Borosilicate Hydroxide (Ca2B5SiO9(OH)5)
mineral
Moonstone
Orthoclase Feldspar (formula: (K,Na)AlSi3O8)
mineral
Purple Agate (Dyed Chalcedony)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
mineral
One Pound Coin (UK)
Nickel-Brass Alloy (Cu-Zn-Ni)
mineral
Smoky Quartz (Chlorite Inclusions)
Silicon Dioxide (SiO2) with trace Aluminum and Natural Irradiation
mineral
Blue Lace Agate (often dyed)
Silicon dioxide (SiO2) - variety of chalcedony
mineral
Asphalt Concrete
Bituminous conglomerate
sedimentary
Faceted Glass (Costume Jewelry)
Amorphous Silicon Dioxide with colorants (Glass)
Synthetic/Man-made Material
Green Banded Agate
Agate (Variety of Chalcedony/Quartz), SiO2
mineral
Agate
Banded Chalcedony (SiO2)
mineral
Native Silver
Silver (elemental Ag)
mineral
Not a geological specimen
N/A (man-made object)
N/A
Asphalt Concrete (Bituminous Conglomerate)
Anthropogenic Bituminous Conglomerate
sedimentary
Agate (Polished Nodule)
Agate (Silicon Dioxide, SiO2)
mineral
Diamond (or Cubic Zirconia simulant)
Carbon (C) - Diamond / Zirconium dioxide (ZrO2) - CZ
mineral
Asphalt (Road Aggregate)
Asphalt concrete / Bituminous mixture
anthropogenic sedimentary (technolith)
Rough Corundum (Sapphire/Ruby mixture)
Corundum (Aluminum Oxide, Al2O3)
mineral
Agate
Silicon Dioxide (SiO2)
mineral
Carnelian
Carnelian (a variety of Chalcedony, which is a microcrystalline quartz, SiO2)
Mineral (variety of Chalcedony)
Carnelian Agate
Silicon Dioxide (SiO2) with iron oxide inclusions
mineral
Not a rock, mineral, or geological specimen
N/A
Asphalt Concrete (Bituminous Pavement)
Aggregates in Bitumen Matrix
Technogenic / Anthropogenic Pavement Material
Aluminum Slag
Anthropogenic Aluminum (Al)
mineral
Peacock Ore (Bornite or Iridescent Chalcopyrite)
Bornite (Cu5FeS4) or Chalcopyrite (CuFeS2) with tarnish
mineral
Diamond (in a jewelry setting)
Diamond (Carbon, C)
mineral
Dyed Agate
Silicon Dioxide (SiO2)
mineral
Synthetic Resin Charm (Seal Shape)
Polymer Resin with plastic glitter / Polyethylene terephthalate glitters
Synthetic material (Not a rock or mineral)
Red Garnet (Almandine-Pyrope series)
Garnet Group, Almandine (Fe3Al2(SiO4)3) or Pyrope (Mg3Al2(SiO4)3)
mineral
Peacock Ore (Chalcopyrite/Bornite)
Bornite (Cu5FeS4) or iridescent treated Chalcopyrite (CuFeS2)
Mineral
Diamond (in jewelry setting)
Diamond (C - Carbon)
mineral
Corundum (Ruby variety)
Aluminium oxide (Al2O3)
mineral
Chakra Stone Tower (Composite Multi-Mineral)
Crystalline Silicon Dioxide composite (SiO2) with various inclusions
mineral
Asphalt / Road Aggregate
Bituminous Conglomerate (synthetic)
sedimentary