Graphite
Graphite (Chemical Formula: C)
Mineral (Native Element)
Category
Meteorite
Browse meteorite specimens identified by the Rock Identifier community.
Learn about Meteorite in the encyclopedia
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Bronzite
Enstatite (magnesium iron silicate), (Mg,Fe2+)SiO3
mineral
Peridot (Olivine)
Magnesium Iron Silicate (Mg, Fe)2SiO4
mineral
Olivine
(Mg, Fe)2SiO4
Mineral
Olivine (Peridot)
Olivine Group (Magnesium Iron Silicate), (Mg, Fe)2SiO4
mineral
Silicon Carbide (Carborundum)
Silicon Carbide (SiC)
mineral
Peridot
Olivine ((Mg,Fe)2SiO4)
mineral
Weathered iron-rich basalt or volcanic scoria
Altered basalt, likely limonite/goethite-bearing (tentative)
igneous
Ironstone Concretion
Ironstone (Limonite/Goethite Concretion)
sedimentary
Concretion, likely ironstone or sandstone concretion
Diagenetic mineral concretion, commonly quartz/calcite cement with iron oxides (goethite/hematite)
sedimentary
Ironstone Concretion
Siderite or Hematite Concretion (FeCO3 or Fe2O3)
sedimentary
Slag
Anthropogenic Vitrophyre (Iron or Smelting Slag)
Mineral-like byproduct
Limonite Concretion
Goethite-Limonite (FeO(OH)·nH2O)
sedimentary
Limonite Concretion (Ironstone)
Limonite (FeO(OH)·nH2O) / Goethite
sedimentary
Sandstone with Ironstone Concretion
Arenite with Hematite/Goethite nodules (Fe2O3 / FeO(OH))
sedimentary
Peridotite (Dunite)
Peridotite (comprising mainly Olivine)
igneous
Olivine (Peridotite)
Magnesium iron silicate (Mg, Fe)2SiO4
igneous
Limonite Concretion (Goonie or Rattlestone)
Limonite (FeO(OH)·nH2O)
sedimentary
Diamond
Diamond (Pure Carbon, C)
mineral
Slag (Industrial Glass Slag)
Amorphous Silica / Ferro-silicate Slag
mineraloid / anthropogenic
Slag (Industrial Glassy Byproduct)
Anthropogenic silicate byproduct (Slag)
Mineral-like byproduct (often mistaken for igneous rock or meteorite)
Sandstone concretion
Arenite sedimentary rock (concretion/nodule)
sedimentary
Fulgurite
Fulgurite (Lechatelierite / Vitreous Silica)
mineral
Sandstone Concretion
Ferruginous Sandstone Concretion
sedimentary
Ferruginous Sandstone (Ironstone Nodules)
Ferruginous Quartz-Arenite (with Goethite/Hematite cement)
sedimentary
Iron Slag
Ferrous Slag (Silicate/Oxide mixture)
industrial byproduct (anthropogenic)
Ironstone Concretion (Limonite/Goethite)
Goethite-rich Concretion (FeO(OH))
sedimentary
Ironstone concretion / Limonitic Sandstone
Goethite/Hematite Cemented Sandstone (Hydrated Iron Oxide)
sedimentary
Sandstone (with Concretion)
Arenite / Quartzose Sandstone
sedimentary
Olivine (Peridot)
Olivine Group (Mg,Fe)2SiO4
mineral
Diamond (Faceted)
Diamond (Carbon, C)
mineral
Sandstone Concretion
Clastic Sedimentary Concretion (typically Quartz/Silica with Iron Oxide)
sedimentary
Slag (Industrial By-product)
Anthropogenic Vitreous Silica/Iron Silicate
mineral
Limonite Concretion
Limonite (Hydrated Iron Oxide) FeO(OH)·nH2O
sedimentary
Slag
Anthropogenic Vitreous Silicate / Ferro-silicate Slag
igneous
Limestone Concretion (Botryoidal/Calcareous Nodules)
Calcium Carbonate Concretion (CaCO3)
sedimentary
Likely silicon carbide (carborundum)
Synthetic silicon carbide (SiC), likely blue-green crystalline grit
mineral
Peridot
Olivine ((Mg, Fe)2SiO4)
Mineral
Olivine (Peridot)
Magnesium Iron Silicate ((Mg, Fe)2SiO4)
Mineral
Peridot (likely, based on color and appearance)
Olivine group mineral, specifically (Mg,Fe)2SiO4 (Forsterite-Fayalite solid solution series)
Mineral
Peridot
Olivine (Magnesium Iron Silicate - (Mg, Fe)2SiO4)
mineral
Peridot
Olivine ((Mg, Fe)2SiO4)
mineral