Man Made

Hematite Beads

Hematite (Fe2O3)

Opalite (a synthetic glass, often confused with Opal)

Silicon dioxide glass (SiO2nH2O, for natural opal)

Polished blue calcite sphere (tentative identification)

Calcite, CaCO₃; blue color generally results from trace impurities or inclusions

Dyed Quartz Geode

Silicon Dioxide (SiO2) with artificial pigment

Tumbled sea glass or pale-green quartz pebble

Indeterminate from image; possibly quartz (SiO₂), but the smooth translucent piece may be man-made glass

Blue slag glass or dyed glass-like industrial material

Amorphous silicate glass; likely copper-bearing blue slag, but possibly colored man-made glass

Colorless faceted gemstone, likely glass or cubic zirconia

Uncertain; possible cubic zirconia (ZrO₂) or quartz (SiO₂), but the image may show a man-made simulant

Colorless faceted quartz-like gemstone

Likely quartz (SiO₂), though the appearance may also indicate man-made glass or cubic zirconia

Green Agate

Silicon dioxide (SiO₂)

Tumbled aqua glassy mineral specimen, likely chrysocolla or turquoise imitation

Uncertain from image; possible chrysocolla (hydrated copper aluminosilicate, variable composition) or dyed/man-made glass

Jewelry Chain with Blue and Clear Gemstones (Likely Cubic Zirconia)

Cubic Zirconia (ZrO₂), Silver or White Gold/Platinum Alloy

Goldstone (Red/Brown)

Aventurine Glass (SiO2 with Copper inclusions)

Blue tumbled glass-like specimen; likely blue slag glass

Likely man-made glass (silicate glass), not a natural mineral; exact material cannot be confirmed from the image

Blue Goldstone

Synthetic Avanturine Glass (or Aventurine Glass)

Blue chalcedony cabochon (probable)

Chalcedony, a cryptocrystalline variety of quartz; silicon dioxide, SiO₂

Green glassy mineral specimen, likely rough emerald or green fluorite

Tentatively beryl (Be₃Al₂Si₆O₁₈), emerald variety; synthetic/man-made glass cannot be excluded from the photograph

Carved Mottled Greenish-Yellow Crystal/Glass Object

Unknown; possibly a form of quartz (chalcedony/jadeite/nephrite) or glass/resin.

Blue slag glass / industrial smelter slag

Man-made iron-rich silicate slag; composition variable, commonly Fe–Ca–Mg–Al silicates with glassy phases

Asphalt Chunk

Asphalt concrete

Brick

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

Asphalt Pavement (with aggregate)

Asphalt concrete

Blue Slag Glass

Amorphous Silica (Byproduct of smelting)

Cardstock (Paper)

Cellulose (C6H10O5)n

Blue Goldstone

Aventurine Glass (SiO2 with Cobalt/Copper inclusions)

Synthetic Resin (Artificial Specimen)

Polyurethane or Polyester Resin

Slag Glass (Cullet)

Amorphous Silicon Dioxide (SiO2) with metal oxide colorants

Slag (Anthropogenic Glass/Iron byproduct)

Ferro-silicate Slag

Artisanal Glass Beads (Simulated Goldstone or Aventurine Glass)

Silicon Dioxide (SiO2) with metallic inclusions

Sea Glass

Amorphous Silicon Dioxide (SiO2)

Crackle Glass (Simulated Gemstone)

Amorphous Solid (SiO2)

Blue Goldstone

Synthetic glass with copper or cobalt/manganese inclusions

Blue Goldstone

Synthetic Aventurescent Glass (Cobalt-doped soda-lime glass)

Blue Goldstone

Aventurine glass (Synthetic borosilicate glass with cobalt and metallic inclusions)

Green Glass Slag

Amorphous Silicon Dioxide (SiO2) with metal oxide impurities

Porcelain (Stoneware Ceramic)

Mullite / Silica-glass composite (Al6Si2O13)

Glass Nugget (Tumbled Glass)

Amorphous Silicon Dioxide (SiO2) with additives

Goldstone (Brown)

Aventurine glass

Green Aventurine

Quartz (SiO2) with Fuchsite inclusions

Probable amber fragment

Amber (fossilized plant resin; chiefly amorphous organic resin, commonly dominated by succinite)

Mixed polished gemstone and mineral collection

Primarily quartz varieties (SiO₂), plus probable aventurine, rose quartz, amethyst, agate, jasper, serpentine, feldspar, and possibly dyed or man-made glass pieces

Goldstone

N/A (Synthetic Glass with Copper Inclusions)

Terrazzo (with Marble and Granite fragments)

Cementitious or resinous composite containing Calcium Carbonate (CaCO3) and Silicates