Dyed Agate
Silicon Dioxide (SiO2) - variety Chalcedony
Category
Browse mineral (synthetic glass) specimens identified by the Rock Identifier community.
Dyed Agate
Silicon Dioxide (SiO2) - variety Chalcedony
Man-made Jewelry (Metal and Glass/Plastic)
Synthetic Alloy and Amorphous Solid (SiO2/Polymer)
Crystal Quartz Beads (likely Clear Quartz)
Quartz (SiO₂)
Emerald in Matrix
Beryl (Be3Al2Si6O18) with trace amounts of Chromium/Vanadium
Rough Ruby
Corundum (Al2O3 with Chromium impurities)
Carborundum (Silicon Carbide)
Silicon Carbide (SiC)
Malachite
Copper carbonate hydroxide [Cu2CO3(OH)2]
Carnelian
Carnelian (Cryptocrystalline Quartz, SiO2)
Ruby
Corundum (Al2O3)
Blue Sapphire (in a faceted jewelry setting)
Corundum (Al2O3) with trace Iron and Titanium
Borosilicate Glass (Manufactured)
SiO2 + B2O3 (Silicon dioxide and Boron trioxide)
Smoky Quartz
Silicon Dioxide (SiO2)
Diamond (Faceted Gemstone)
Native Carbon (C)
Chalcanthite
Copper(II) sulfate pentahydrate (CuSO4·5H2O)
Asphalt (Bituminous Concrete)
Bituminous mix / Anthropogenic conglomerate
Dyed Agate Geode
Silicon Dioxide (SiO2) with artificial pigment
Ruby
Corundum (Al2O3 with Chromium traces)
Diamond (or Diamond Simulant)
Carbon (C) if diamond, various if simulant
Pink Dyed Agate
Silicon Dioxide (SiO2) with synthetic pigment
Dyed Crackle Quartz
Silicon Dioxide (SiO2) with synthetic dye
Dyed Agate
Silicon Dioxide (SiO2) with synthetic dyes
Colorless faceted gemstone, likely cubic zirconia
Cubic zirconia (zirconium dioxide, ZrO₂); visual confirmation is unavailable
Blue Cracked Quartz (Dyed Fire Crackle Quartz)
Silicon Dioxide (SiO2) with synthetic dye
Diamond (or Cubic Zirconia simulant)
Carbon (C) - Diamond / Zirconium dioxide (ZrO2) - CZ
Amethyst (Resin Carving/Orgonite)
Silicon Dioxide (SiO2) with iron impurities
Cubic Zirconia (Man-made)
Cubic Zirconia (ZrO2) with Enamel and Metal Alloy
Dyed Agate
Chalcedony (SiO2)
Anthropogenic Heat Source (Electronic/Industrial Interface)
Thermal IR emission (Electronic infrastructure)
Sapphire (likely blue synthetic sapphire or blue glass in a ring)
Corundum (Al₂O₃), specifically the blue variety due to trace amounts of iron and titanium impurities. If synthetic, it would still be Al₂O₃.
Ruby (Corundum)
Corundum (Aluminum Oxide with Chromium), Al2O3:Cr
Assorted Semi-Precious Gemstone Crosses
Quartz, Silicates, Carbonates (various)
Ammolite
Biogenic gemstone (Aragonite, CaCO3)
Sapphire
Corundum (Al2O3)
Ruby (Pink to Red Corundum)
Al2O3 (Corundum with Chromium impurities)
Ruby
Corundum (Al2O3 with Chromium traces)
Magnetite or Hematite-rich Ore
Magnetite (Fe3O4) or Hematite (Fe2O3)
Malachite
Cu2CO3(OH)2 (Copper Hydroxide Carbonate)
Yellow Sapphire
Corundum (Al2O3:Fe)
Ruby
Corundum (Aluminum Oxide with Chromium), Al2O3:Cr
Diamond (in jewelry)
Cubic Carbon (C)
Pearls (likely freshwater cultured pearls)
Pearl: nacre, primarily aragonite (CaCO₃) with conchiolin
Emerald
Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities