Slag
Anthropogenic Vitrophyre (Iron or Smelting Slag)
Mineral-like byproduct
Category
Antropogenic (Man Made Glass Byproduct)
Browse antropogenic (man made glass byproduct) specimens identified by the Rock Identifier community.
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Blue slag glass or dyed glass-like industrial material
Amorphous silicate glass; likely copper-bearing blue slag, but possibly colored man-made glass
mineral
Artisanal Glass Beads (Simulated Goldstone or Aventurine Glass)
Silicon Dioxide (SiO2) with metallic inclusions
man-made material
Green Slag Glass
Amorphous Silica Glass (Anthropogenic)
Industrial byproduct (often mistaken for obsidian or mineral)
Blue chalcedony cabochon (probable)
Chalcedony, a cryptocrystalline variety of quartz; silicon dioxide, SiO₂
gemstone
Goldstone (Brown)
Aventurine glass
mineraloid (man-made)
Red Jasper
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Dyed Quartz Geode
Silicon Dioxide (SiO2) with artificial pigment
mineral
Slag (Industrial Byproduct)
Ferrous/Non-ferrous Silicate
igneous (artificial/anthropogenic)
Possible flint or slag fragment
Microcrystalline quartz (chalcedony), or iron-rich industrial slag
mineral
Milky Quartz or Calcite Pebble
Silicon Dioxide (SiO2) or Calcium Carbonate (CaCO3)
mineral
Slag Glass
Glassy Silicate Residue
industrial byproduct
Chert (Flint)
Chert (SiO2)
sedimentary
Hematite Beads
Hematite (Fe2O3)
Mineral
Blue Goldstone
Synthetic Aventurescent Glass (Cobalt-doped soda-lime glass)
man-made glass
Blue Goldstone
Aventurine glass (Synthetic borosilicate glass with cobalt and metallic inclusions)
man-made glass
Green Quartz (Prasiolite or Aventurine)
Silicon Dioxide (SiO2)
mineral
Iron Slag
Vitreous glassy waste (Fe-Si-Al-Ca compounds)
Mineral byproduct (anthropogenic / techno-fossil)
Man-made Carved Stone (Scream Mask/Skull motif)
Carved Soapstone or Serpentine-rich rock
Anthropogenic (Man-made artifact)
Blue Goldstone
Synthetic glass with copper or cobalt/manganese inclusions
man-made glass
Goldstone (aventurine glass)
Synthetic copper-bearing soda-lime glass; commonly sold as red goldstone
gemstone
Slag Glass
Amorphous Silica Glass (with metal oxide inclusions)
Mineraloid / Industrial Waste
Glass Nugget (Tumbled Glass)
Amorphous Silicon Dioxide (SiO2) with additives
mineraloid (man-made)
Quartzite (Lithic Artifact)
Quartzite (SiO2)
metamorphic
Sulfur (with possible Cullet Glass or Slag imitation)
Native Sulfur (S8)
mineral
Slag (Industrial Glass/Byproduct)
Anthropogenic Vitreous Silicate
igneous (anthropogenic)
Chert (Jasper/Flint variety)
Microcrystalline Quartz (SiO2)
sedimentary
Metal Chain (Likely Steel or a Steel Alloy)
Steel (primarily iron and carbon); specific alloy unknown
Man-made Object (Metal/Alloy)
Man-made Dyed Aura Quartz
Silicon Dioxide (SiO2) with metallic coating/dye
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Slag (Industrial Glassy Byproduct)
Ferro-silicate Slag
Anthropogenic / Non-Natural
Slag (Industrial By-product)
Glassy silicate or metallic smelting residue
mineral-like (anthropogenic)
Ferruginous Slag (Iron Smelting Byproduct)
Anthropogenic Vitreous Silicate (often containing Fayalite: Fe2SiO4)
Mineraloid/Anthropogenic (Technofossil)
Man-made Ceramic / Clay Figurine
Aluminosilicate Ceramic (Processed Clay)
Synthetic (not a rock or mineral)
Rainbow Hematite (Man-made/Treated)
Tumbled Hematite with Titanium/Anodized coating (Iron(III) oxide, Fe2O3)
mineral
Man-made Blank Ammunition (Brass)
CuZn (Cartridge Brass - roughly 70% Copper, 30% Zinc)
Anticrystalline / Synthetic Alloy
Likely blue glass or synthetic gemstone jewelry
Uncertain; possibly synthetic spinel, cubic zirconia, or blue glass
gemstone
Cullet Glass (Industrial Slag Glass)
Amorphous Silica (SiO2) with metallic oxide impurities
Man-made byproduct (often mistaken for Obsidian or Emerald)
Note: Item is a Synthetic/Man-made Object
Titanium-coated Stainless Steel (Fe-Cr-Ni-Ti)
Non-geological
Green Aventurine
Quartz (SiO2) with Fuchsite inclusions
Mineral
Brick
Fired clay or Ceramic material (no specific mineralogical scientific name as it's a composite)
Man-made material (constructed)
Fluorite (Fluor-spar)
Calcium Fluoride (CaF2)
mineral