Limonite (Iron Ore)
Goethite and related iron hydroxides (FeO(OH)·nH2O)
mineral
Category
Industrial By Product
Browse industrial by product specimens identified by the Rock Identifier community.
Quartzite
Quartzite (SiO2)
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Wild Horse Magnesite
Magnesite with Hematite inclusions (MgCO3)
mineral
White Quartz Sphere
Silicon Dioxide (SiO2)
mineral
Iron Slag
Anthropogenic Vitreous Silicate (Byproduct of Smelting)
Mineral-like byproduct
Slag (Industrial Glass)
Artificial Vitreous Silicate
mineraloid (anthropogenic)
Ferrocoke or Slag
Anthropogenic pyrometallurgical residue
igneous
Iron Slag
Ferrous Slag (complex silicate and oxide byproduct)
industrial byproduct (anthropogenic)
Slag (Industrial Glass/Metal)
Ferrous slag or Glassy silicate byproduct
Antropogenic rock (Man-made)
Slag
Ferrous Slag (Siliceous industrial waste)
Anthropogenic (Man-made industrial byproduct)
Quartz (Agate/Chalcedony)
Silicon Dioxide (SiO2)
mineral
Chert (Iron-Stained)
Chert (Silicon Dioxide, SiO2)
sedimentary
Chalcedony Pebble
Cryptocrystalline Quartz (SiO2)
mineral
Quartz or possibly Jasper/Chert. Looks like a tumbled or water-worn stone.
SiO2 (Silicon Dioxide)
Mineral or Sedimentary (if chert)
Peridot
Olivine ((Mg, Fe)2SiO4)
mineral
Magnetic Sand Grain / Magnetite Pellet
Magnetite (Fe3O4)
mineral
Quartzite Pebble
Quartzite (SiO2)
metamorphic
Red Garnet (likely Almandine)
Almandine (Fe3Al2(SiO4)3)
mineral
Jasper
Jasper (Silicon Dioxide, SiO2)
sedimentary
Iron Ore (Hematite/Goethite)
Ironstone (Fe2O3 / FeO(OH))
sedimentary
Muscovite Mica (in Quartz matrix)
Potassium aluminum silicate hydroxide fluoride (KAl2(AlSi3O10)(F,OH)2)
mineral
Chert / Yellow Jasper
Silicon Dioxide (SiO2)
sedimentary
Ferrochrome Slag
Anthropogenic slag (Fe-Cr alloy waste)
industrial byproduct
Pumice
Pumice (a highly vesicular volcanic glass)
igneous
Sandstone-based Concrete Fragment
Cementitious Composite with Sedimentary Aggregate
sedimentary (man-made/anthropogenic)
Ferro-Manganese Slag
Vitreous Silicate Slag
Anthropogenic (Industrial byproduct)
Aquamarine
Beryl (Be3Al2Si6O18)
mineral
Raw Diamond
Carbon (C)
mineral
Concrete rubble
Anthropogenic conglomerate
sedimentary
Diamond (in Matrix)
Carbon (C)
mineral
Anthracite Coal
Coal (predominantly carbon)
sedimentary
Ferrochrome Slag
Industrial Glassy Slag (Fe-Cr alloy byproduct)
Antropogenic (Man-made industrial byproduct)
Diamond
Carbon (C)
mineral
Diamond
Native Carbon (C)
mineral
Banded Iron Formation (Jaspillite)
Banded Iron Formation (BIF)
sedimentary
Limonite (Iron Ore)
FeO(OH)·nH2O (Hydrated Iron Oxide)
mineral
Crushed Stone (Gravel/Aggregates)
Crushed rock aggregate (varied composition including Granite, Limestone, and Quartz)
sedimentary and igneous (mixed)
Drill Core Samples (Varied Lithology)
Multi-lithological core samples (containing potential granite, marble, and phyllite/schist sequence)
igneous, sedimentary, and metamorphic
Limonite (Iron Ore)
Limonite (Hydrated iron oxide - FeO(OH)·nH2O)
mineral
Cobalt Glass Slug (Cullet)
Man-made Silicate Glass with Cobalt Oxide (CoO)
mineraloid
Concrete Paver (Artificial Cementitious Rock)
Hydrated Portland Cement Aggregate
Sedimentary (Synthetic)