Slag (Industrial Glass Slag)
Amorphous Silica / Ferro-silicate Slag
mineraloid / anthropogenic
Category
Mineral Based Alloy (Anthropogenic)
Browse mineral based alloy (anthropogenic) specimens identified by the Rock Identifier community.
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Chert (often called Flint in archaeological contexts)
Microcrystalline or cryptocrystalline Silica (SiO2)
sedimentary
Chert (Arrowhead or Flake)
Microcrystalline quartz (SiO2)
sedimentary
Titanium-coated Metal Cube (Man-made Fidget Toy)
Titanium-anodized or electroplated alloy (e.g., Ti-coated Zinc or Aluminum)
Mineral alternative / Synthetic
Note on Image Identification: Textile
N/A (Anthropogenic material)
not a rock
Iron Slag (Industrial Byproduct)
Anthropogenic pyrometallurgical residue
mineral
Iron Slag
Anthropogenic Ferro-silicate
mineral
N/A - Man-made object (Jewelry Chain)
Antiqued or Oxidized Metal Chain (often Steel or Brass)
Mineral (processed metal)
Smelter Slag
Anthropogenic Silicate Slag
igneous
Aluminum Slag
Anthropogenic Aluminum (Al)
mineral
Slag Glass (Leland Blue variant)
Anthropogenic Vitreous Silicate
mineral
Aluminum Slag
Anthropogenic Aluminum (Al)
mineral
Molybdenite in Quartz
Molybdenite (MoS2) with Quartz (SiO2)
mineral
Chert Arrowhead (Lithic Artifact)
Microcrystalline Quartz (SiO2)
sedimentary
Slag Glass / Industrial Slag
Anthropogenic Glass
man-made glass / industrial byproduct
Slag
Glassy silicate byproduct (anthropogenic material)
industrial byproduct
Ferrochrome Slag
Calcium-Aluminium-Magnesium Silicate Slag
industrial byproduct
Asphalt concrete
Anthropogenic conglomerate
sedimentary
Concrete
Hydrated Portland Cement Aggregate Composite
Anthropogenic Sedimentary (Man-made)
N/A - Image does not contain a rock or mineral
Anthropogenic textile material
Non-geological
Blue Celestite
Celestine (Strontium Sulfate, SrSO4)
mineral
Lepidolite
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2
mineral
Conglomeratic gravel / polymictic breccia
Polymictic rudite, likely anthropogenic or beach/stream gravel; composition varies
sedimentary
Basalt
Basalt (Mafic volcanic rock)
igneous
Aggregate Concrete
Anthropogenic Conglomerate (Technosol)
sedimentary
Unknown White Specimen
Unidentifiable due to blurriness
mineral
Slag
Anthropogenic Vitrification Product / Silicate Slag
Anthropogenic (Man-made industrial byproduct)
Synthetic Wolf Plush (Non-mineral)
Canis lupus similis (Prop material: Polyester & Synthetic fibers)
Synthetic material/Textile
Native Gold
Gold (Au)
mineral
Sandstone-based Concrete Fragment
Cementitious Composite with Sedimentary Aggregate
sedimentary (man-made/anthropogenic)
Iridescent chalcopyrite (“peacock ore”)
Chalcopyrite, CuFeS₂, commonly surface-oxidized to covellite and related copper sulfides
mineral
Aquamarine
Beryl (Be3Al2Si6O18 with iron impurities)
mineral
Asphalt (Bituminous Concrete)
Bituminous mix / Anthropogenic conglomerate
man-made composite (lithified equivalent of sedimentary)
Slag
Anthropogenic Iron Silicate Glass
mineral
Blue Slag Glass
Anthropogenic Amorphous Silicon Dioxide
mineral
Blue Glass or Slag Glass
Amorphous Silica (Anthropogenic Glass)
mineral
River Pebble
Weathered Rock Fragment
sedimentary
Bismuth Crystal
Bismuth (Bi)
mineral
Man-made Blank Ammunition (Brass)
CuZn (Cartridge Brass - roughly 70% Copper, 30% Zinc)
Anticrystalline / Synthetic Alloy
Arsenic (Native)
Arsenic (As)
mineral
Sandstone
Arenite (predominantly SiO2)
sedimentary
Green Slag Glass
Amorphous Silica Glass (Anthropogenic)
Industrial byproduct (often mistaken for obsidian or mineral)