Antropogenic (Man Made Glass Byproduct)

Slag Glass

Glassy Silicate Residue

Milky Quartz or Calcite Pebble

Silicon Dioxide (SiO2) or Calcium Carbonate (CaCO3)

Green Quartz (Prasiolite or Aventurine)

Silicon Dioxide (SiO2)

Sulfur (with possible Cullet Glass or Slag imitation)

Native Sulfur (S8)

Iron Slag

Vitreous glassy waste (Fe-Si-Al-Ca compounds)

Dyed Quartz Geode

Silicon Dioxide (SiO2) with artificial pigment

Slag Glass

Amorphous Silica Glass (with metal oxide inclusions)

Blue Goldstone

Synthetic glass with copper or cobalt/manganese inclusions

Hematite Beads

Hematite (Fe2O3)

Chert (Flint)

Chert (SiO2)

Slag (Industrial Glass/Byproduct)

Anthropogenic Vitreous Silicate

Quartzite (Lithic Artifact)

Quartzite (SiO2)

Glass Nugget (Tumbled Glass)

Amorphous Silicon Dioxide (SiO2) with additives

Slag (Industrial Glassy Byproduct)

Ferro-silicate Slag

Sea glass (likely pale blue glass)

Human-made silicate glass, likely soda-lime glass; not a natural mineral or rock

Green sea glass (likely)

Anthropogenic glass, not a mineral; composition commonly soda–lime silicate glass

N/A - Man-made object (Jewelry Chain)

Antiqued or Oxidized Metal Chain (often Steel or Brass)

Man-made Jewelry Charm (Enameled Metal)

Not a natural mineral; composed of base metal alloy (likely zinc or brass) and epoxy resin/enamel.

Chert (Jasper/Flint variety)

Microcrystalline Quartz (SiO2)

Goldstone (aventurine glass)

Synthetic copper-bearing soda-lime glass; commonly sold as red goldstone

Metal Chain (Likely Steel or a Steel Alloy)

Steel (primarily iron and carbon); specific alloy unknown

Slag (Industrial Glass/Metal Waste)

Artificial silicate/ferro-silicate byproduct

Sea Glass

Amorphous Silicon Dioxide (SiO2)

Man-made Metal Pin (Non-geological)

Antimony-Lead Alloy or Zinc/Brass Base with Electroplating

Blue glass-like bead or gemstone keychain ornament

Indeterminate; likely cobalt-blue glass or synthetic blue spinel, not identifiable as a natural mineral from the image

Sea Glass

Anthropogenic Silicate Glass

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Slag (Industrial By-product)

Glassy silicate or metallic smelting residue

Luminous Stone (Glow-in-the-dark Synthetic/Man-made Stone)

Strontium Aluminate tinted glass or resin (Crystalline silicate/oxide mix)

Possible industrial slag or basaltic volcanic glass

Likely iron-rich vitreous slag; natural alternative: basaltic glass (tachylite)

Ferruginous Slag (Iron Smelting Byproduct)

Anthropogenic Vitreous Silicate (often containing Fayalite: Fe2SiO4)

Likely blue glass or synthetic gemstone jewelry

Uncertain; possibly synthetic spinel, cubic zirconia, or blue glass

Porcelain (Stoneware Ceramic)

Mullite / Silica-glass composite (Al6Si2O13)

Brick

Fired clay or Ceramic material (no specific mineralogical scientific name as it's a composite)

Cullet Glass (Industrial Slag Glass)

Amorphous Silica (SiO2) with metallic oxide impurities

Fluorite (Fluor-spar)

Calcium Fluoride (CaF2)

Fluorite (Purple/Blue variety)

Calcium Fluoride (CaF2)

Clear-stone silver-tone teardrop earring

The stones may be colorless quartz or glass; the image does not allow reliable identification. Metal setting appears silver-tone.

Blue Sea Glass

Amorphous Silica (Anthropogenic glass)

Likely rough green-blue glassy mineral fragment

Unidentified; the image is insufficient to distinguish a natural mineral from industrial slag or glass

Orange glassy slag (industrial by-product)

Iron-rich silicate glass; composition varies, commonly Fe–Ca–Al silicate

Likely green bottle glass, not a geological specimen

Manufactured soda-lime silicate glass