Pyrite
Iron Sulfide (FeS2)
mineral
Category
Man Made Material (Jewelry, Metal Alloy)
Browse man made material (jewelry, metal alloy) specimens identified by the Rock Identifier community.
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Pyrite (Iron Pyrite)
Iron Sulfide (FeS2)
mineral
Aventurine
Quartz (SiO2) with inclusions of Fuchsite
mineral
Pyrite
Iron Pyrite (FeS2)
mineral
Diamond (Cut Gemstones in Jewelry)
Carbon (C)
gemstone
Rutilated Quartz
Silicon Dioxide (SiO2) with Titanium Dioxide (TiO2) inclusions
mineral
Snowflake Obsidian
Volcanic glass with Cristobalite inclusions (70–75% SiO2)
igneous
Quartz Vein in Host Rock
Silicon Dioxide (SiO2)
mineral
Iron Meteorite (Campo del Cielo)
Iron Meteorite, Group IAB (FeNi Alloy: Kamacite and Taenite)
igneous
Fossilized Coral (Petoskey Stone / Hexagonaria)
Hexagonaria percarinata / Rugosa coral (CaCO3)
fossil
Green Quartzite
Metamorphic Quartz Sandstone (SiO2)
metamorphic
Pyrite with Calcite
Iron Disulfide (FeS2) with Calcium Carbonate (CaCO3)
mineral
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
metamorphic
Serpentinite
Serpentinite (composed largely of serpentine group minerals including antigorite, lizardite, and chrysotile)
metamorphic
Rose Quartz
Silicon Dioxide (SiO2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Quartz Vein in Host Rock
Silicon Dioxide (SiO2) in matrix
Mineral in Metamorphic/Igneous Host
Diamond
Carbon (C)
mineral
Amazonite
KAlSi3O8 (Potassium Aluminum Silicate)
mineral
Gold
Gold (Au)
mineral
Iron Meteorite
Siderite (Iron-Nickel Meteorite)
meteorite
Brecciated Jasper
Brecciated Jasper (Microcrystalline Quartz / SiO2)
sedimentary
Quartz
Silicon dioxide (SiO₂)
Mineral
Pearl
Calcium carbonate (CaCO3) - mainly Aragonite with Conchiolin
mineraloid
Obsidian
Volcanic Glass (SiO2)
igneous
Pyrite
Iron Sulfide (FeS2)
mineral
Mystic Topaz
Aluminum silicate fluoride hydroxide with titanium coating (Al2SiO4(F,OH)2)
mineral
Quartzite (likely Iron-stained)
SiO2 (Metamorphosed Sandstone)
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Diamond (Baguette cut)
Carbon (C)
gemstone
Native Copper
Native Copper (Cu)
mineral
Blue Sapphire
Corundum (Al2O3)
gemstone
Flower Agate
Chalcedony (SiO2) with inclusions
mineral
Natural Pearl
Calcium carbonate (primarily Aragonite and Conchiolin), CaCO3
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Polished white chalcedony or milky quartz pebble
Chalcedony, microcrystalline quartz (SiO₂), possibly with iron-oxide staining or a minor mineral inclusion
mineral
Smoky Quartz
Smoky Quartz (Silicon Dioxide - SiO2)
mineral
Serpentinite
Serpentinite (composed primarily of Serpentine minerals: Mg3Si2O5(OH)4)
metamorphic
Diamond
Carbon (C)
mineral
Chondrite Meteorite
Stony Meteorite (Ordinary Chondrite)
meteorite
Lepidolite with Quartz
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2
mineral
Chert (Flint Nodular Variety)
Microcrystalline Quartz (SiO2)
sedimentary