Iron meteorite (probable)
Fe–Ni metallic meteorite, possibly an ordinary chondrite or iron-rich meteorite
meteorite
Category
Man Made Material (Jewelry, Metal Alloy)
Browse man made material (jewelry, metal alloy) specimens identified by the Rock Identifier community.
Learn about Man Made Material (Jewelry, Metal Alloy) in the encyclopedia
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Chert (Flint)
Silicon Dioxide (SiO2)
sedimentary
Mother of Pearl (Nacre) / Shell Fragment
Biogenic Calcium Carbonate (Aragonite and Conchiolin)
fossil
Nephrite Jade
Ca2(Mg,Fe)5Si8O22(OH)2
metamorphic
Diamond
Diamond (pure Carbon, C)
mineral
Limonite (Iron Stone/Iron Ore)
FeO(OH)·nH2O (Hydrous ferric oxide)
mineral
Slate
Metamorphic Pelitic Rock
metamorphic
Slate
Metamorphic Pelitic Rock
metamorphic
Chert (Jasper/Common Chert Pebble)
Microcrystalline Quartz (SiO2)
sedimentary
Diamond (set in jewelry)
Diamond (Carbon, C)
mineral
Amethyst, Aquamarine, and Pearl Ring
SiO2 (Amethyst), Be3Al2Si6O18 (Aquamarine), CaCO3 (Pearl)
gemstone
Tektite (Indochinite)
Tektite (Amorphous Silica Glass)
igneous
Diamond (Cut Gemstone)
Natural Carbon (C)
gemstone
Milky Quartz
Quartz (Silicon Dioxide) - SiO2
mineral
Chert (Commonly known as Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Pearl and Garnet Glass
Calcium Carbonate (CaCO3) for pearl; Silicon Dioxide (SiO2) for glass
mineral and glass
Blue Sapphire (Synthetic or Man-made Glass Imitation)
Corundum (Al2O3) if natural; Lead-glass or Spinal if synthetic
mineral
Chert / Jasper
Silicon Dioxide (SiO₂)
sedimentary
Chert (White Chert/Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (variations include Flint)
Microcrystalline or cryptocrystalline Quartz (SiO2)
sedimentary
Diamond
Diamond (Pure Carbon, C)
mineral
Fulgarite
Fulgurite (Lechatelierite / Vitrified Sand)
igneous
Chert (often called Flint)
Chert (Cryptocrystalline Quartz, SiO2)
sedimentary
Diamond (Cut jewelry specimen)
Diamond (pure Carbon, C)
mineral
Terracotta (Man-made ceramic brick fragment)
Baked clay / High-iron ceramic (Silicate-based ceramic)
Anthropogenic material (Man-made sedimentary mimic)
Chert
Microcrystalline silica (SiO2)
sedimentary
Chert (Flint)
Chert (Silicon Dioxide, SiO2)
sedimentary
Cubic Zirconia (Diamond Simulant)
Zirconium Dioxide (ZrO2)
mineral
Chondrite Meteorite
Ordinary Chondrite (Fe-Ni alloy, Olivine, Pyroxene)
Mineral
Tektite
Natural impact glass
meteorite
Diamond
Carbon (C)
gemstone
Pyrite
Iron Disulfide (FeS2)
mineral
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Diamond
Diamond (pure Carbon, C)
mineral
Pyrite
Iron disulfide (FeS2)
mineral
Coquina
Bioclastic Limestone
sedimentary
Bauxite
Aluminium ore / Hydrated aluminium oxides (AlOx(OH)3-2x)
sedimentary
Chert
Microcrystalline Quartz (SiO2)
sedimentary
Slag Glass
Silicon dioxide with impurities
mineral
Chert / Flint
Cryptocrystalline Quartz (SiO2)
sedimentary
Turquoise
Hydrated phosphate of copper and aluminum, CuAl6(PO4)4(OH)8·4H2O
mineral
Slate
Metamorphic Pelitic Rock
metamorphic