Ferruginous Sandstone (Ironstone)
Ferruginous Sandstone / Limonite-cemented Quartz Sandstone
sedimentary
Category
Mineral Like Industrial Smelting Waste
Browse mineral like industrial smelting waste specimens identified by the Rock Identifier community.
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Slag (Industrial By-product)
Glassy silicate or metallic smelting residue
mineral-like (anthropogenic)
Stainless Steel (Polished)
Ferrous Alloy containing Iron (Fe), Chromium (Cr), and Carbon (C)
Mineral equivalent / Metal Alloy
Smelter Slag
Anthropogenic Silicate Slag
igneous
Coprolite
Fossilized Feces
sedimentary
Industrial Slag
Anthropogenic Vitreous Slag
igneous
Slag (Industrial Glassy Byproduct)
Ferro-silicate Slag
Anthropogenic / Non-Natural
Iron Slag
Iron Slag (Industrial Vitreous Material)
Mineral/By-product
Limonite/Goethite (Iron Ore)
Hydrous ferric oxides (FeO(OH)·nH2O)
mineral
Slag (Anthropogenic Glass/Iron byproduct)
Ferro-silicate Slag
Anthropogenic (Man-made)
Slag
industrial by-product
Green Fluorite
Calcium Fluoride (CaF2)
mineral
Coal (Anthracite)
Anthracite coal (Carbon C)
sedimentary
Basalt or Slag
Extrusive Igneous Rock / Industrial Slag
igneous
Green Slag
Anthropogenic Silicate Glass
Mineraloid (Industrial byproduct)
Slag (Industrial Byproduct)
Ferro-silicate glass (Slag)
Anthropogenic (Man-made industrial deposit)
Slag (Industrial Glass)
Anthropogenic Amorphous Vitreous Silicate
mineraloid
Red Slag Glass (Cullet)
Amorphous Silicon Dioxide (SiO2) with metallic dopants
Antropogenic (Man-made material)
Anthracite
Anthracite (Carbon-rich metamorphic coal)
metamorphic
Asphalt (Aggregate)
Bituminous macadam / Concrete Aggregate
sedimentary
Possible flint or slag fragment
Microcrystalline quartz (chalcedony), or iron-rich industrial slag
mineral
Red Slag Glass
Amorphous Silica (Industrial byproduct with metallic oxide dopants)
Mineraloid / Industrial Byproduct
Porphyritic Basalt (likely artificially dyed or altered)
Basalt with plagioclase phenocrysts (likely treated)
igneous
Green Slag Glass
Amorphous Silica / Glassy Blast Furnace Slag
Mineraloid (Industrial byproduct)
Iron-rich vesicular rock, possibly slag or weathered basalt
Identification uncertain; likely ferruginous basalt/ironstone, with possible anthropogenic iron slag
igneous
Green Slag Glass (Cullet)
Amorphous Silica (Industrial Glass Byproduct)
Synthetic/Byproduct (Non-igneous, non-sedimentary, non-metamorphic)
Terracotta (Man-made ceramic brick fragment)
Baked clay / High-iron ceramic (Silicate-based ceramic)
Anthropogenic material (Man-made sedimentary mimic)
Ferruginous Slag (Iron Smelting Byproduct)
Anthropogenic Vitreous Silicate (often containing Fayalite: Fe2SiO4)
Mineraloid/Anthropogenic (Technofossil)
Green Fluorite
Fluorite (Calcium Fluoride, CaF2)
mineral
Asphalt Concrete (Bituminous Conglomerate)
Anthropogenic Bituminous Conglomerate
sedimentary
Anthracite Coal
Anthracite (Metamorphosed Carbon)
sedimentary
Limonite Geode (Ironstone Concretion)
FeO(OH)·nH2O (Hydrated Iron Oxide)
sedimentary
Anthracite
Anthracite Coal
metamorphic
Anthracite
Anthracite (Carbon)
metamorphic
Concrete fragment with Aggregate
Anthropogenic Concrete with Calcarious and Siliceous Aggregate
sedimentary (anthropogenic/man-made)
Fluorite
Calcium Fluoride (CaF2)
mineral
Honey Calcite (Yellow Calcite)
Calcium Carbonate (CaCO3)
mineral
Halite (Rock Salt)
Halite (Sodium Chloride, NaCl)
mineral
Gold Ore (Auriferous Quartz with Chalcopyrite/Pyrite)
Au (Native Gold) in Quartz (SiO2) with FeS2 (Pyrite) or CuFeS2 (Chalcopyrite)
Mineral
Sandstone (with Chert/Quartzite nodules)
Clastic sedimentary rock (primarily SiO2)
sedimentary
Quartzite
Quartzite (SiO2)
metamorphic
Likely weathered iron-rich rock or slag fragment
Uncertain; possibly limonite/goethite-rich material (FeO(OH)·nH₂O)
mineral