Blue Apatite
Fluorapatite (Ca5(PO4)3F)
mineral
Category
Industrial Byproduct (Often Confused With Igneous Rocks Or Meteorites)
Browse industrial byproduct (often confused with igneous rocks or meteorites) specimens identified by the Rock Identifier community.
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Olivine Peridotite
Peridotite (comprising Olivine (Mg,Fe)2SiO4 and Pyroxene)
igneous
Cobalt Glass Slug (Man-made Glass)
Amorphous Silica with Cobalt Oxide (SiO2 + CoO)
mineraloid
Asphalt fragment
Bituminous concrete
anthropogenic material
Small polished blue-gray stone, likely sodalite or dyed gemstone
Probable sodalite (Na₈Al₆Si₆O₂₄Cl₂); identification is uncertain from the distant image
mineral
Sodalite
Na8(Al6Si6O24)Cl2
mineral
Quartzite
Quartzite (composed primarily of SiO2)
metamorphic
Olivine (Peridot)
Magnesium Iron Silicate ((Mg, Fe)2SiO4)
mineral
Olivine (Peridot)
Magnesium Iron Silicate (Mg, Fe)2SiO4
Mineral
Terracotta (Man-made ceramic brick fragment)
Baked clay / High-iron ceramic (Silicate-based ceramic)
Anthropogenic material (Man-made sedimentary mimic)
Lunar Meteorite (Feldspathic Breccia)
Lunar Feldspathic Breccia
igneous
Hypersthene
Enstatite-Ferrosilite series, (Mg,Fe)2Si2O6
mineral
Olivine (Peridot)
Magnesium Iron Silicate ((Mg, Fe)2SiO4)
Mineral
Olivine (Peridotite)
(Mg, Fe)2SiO4 (Magnesium Iron Silicate)
igneous
Apatite
Fluorapatite / Chlorapatite (Ca5(PO4)3(F,Cl,OH))
mineral
Iron Meteorite
Siderite (comprised primarily of Kamacite and Taenite alloys)
igneous
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Biotite or Phlogopite Mica
K(Mg,Fe)3(AlSi3O10)(F,OH)2
mineral
Cobalt Blue Glass / Cullet Glass
Silicon dioxide (Amorphous man-made glass)
mineral
Peridot
Olivine (Magnesium Iron Silicate), (Mg, Fe)2SiO4
mineral
Quartzite
Quartzite (primarily SiO2)
metamorphic
Polished sodalite
Sodalite, Na₈(Al₆Si₆O₂₄)Cl₂
mineral
Olivine (Peridot)
Magnesium Iron Silicate ((Mg, Fe)2SiO4)
mineral
Iron-rich meteorite candidate
Unclassified iron meteorite or stony-iron meteorite; confirmation requires chemical and nickel testing
meteorite
Blue Slag Glass
Man-made Silicon Dioxide (Amorphous)
Anthropogenic (Man-made)
Sodalite
Na8(Al6Si6O24)Cl2 (Sodium Aluminum Silicate Chloride)
mineral
Possible iron-rich meteorite fragment
Undetermined; possible stony-iron or iron-oxide-rich meteorite
meteorite
Iron Meteorite
Siderite (Fe, Ni)
igneous
Quartzite
Metamorphosed Quartz Arenite (SiO2)
metamorphic
Ferro-Manganese Slag
Vitreous Silicate Slag
Anthropogenic (Industrial byproduct)
Basalt with Fusion Crust (Meteorite-like appearance)
Vesicular Basalt
igneous
Pyrite in Matrix
Iron Sulfide (FeS2)
mineral
Sodalite
Sodalite (Na8Al6Si6O24Cl2)
mineral
Dark metallic-looking mineral specimen, possibly magnetite
Magnetite (Fe₃O₄), tentative identification
mineral
Slag Glass
Anthropogenic Amorphous Silicon Dioxide
mineral
Olivine in Basalt matrix
Peridotite (Mg, Fe)2SiO4
igneous
Quartzite
Quartzite (SiO₂)
metamorphic
Quartzite
Quartzite (primarily SiO2)
metamorphic
Green Slag Glass (Cullet)
Amorphous Silica (Industrial Glass Byproduct)
Synthetic/Byproduct (Non-igneous, non-sedimentary, non-metamorphic)
Cullet Glass (Slag Glass)
Amorphous Silicon Dioxide (Industrial Byproduct)
mineraloid
Quartzite
Quartzite (primarily SiO2)
metamorphic
Blue Obsidian (Cullet Glass)
Silicon Dioxide (Amorphous Glass)
mineral