Synthetic (Man Made Glass)

Chalcanthite (Likely Synthetic/Lab-Grown)

Hydrated copper(II) sulfate (CuSO4·5H2O)

Asphalt (Bituminous Concrete)

Bituminous Concrete / Pavement

Hematite Beads

Hematite (Fe2O3)

Strawberry Quartz and Rose Quartz

Silicon Dioxide (SiO2) with inclusions

Ruby (Faceted)

Corundum (Al2O3:Cr)

Faceted Diamond or Cubic Zirconia

Carbon (C) for Diamond; Zirconium dioxide (ZrO2) for CZ

Tumbled amethyst

Amethyst, purple quartz (SiO₂), colored by trace iron and irradiation

Colorless Gemstone (possibly Diamond or Cubic Zirconia)

C (Diamond) or ZrO2 (Cubic Zirconia)

Spinel

Magnesium Aluminum Oxide (MgAl2O4)

Glass Nugget (Tumbled Glass)

Amorphous Silicon Dioxide (SiO2) with additives

Man-made Carved Stone (Scream Mask/Skull motif)

Carved Soapstone or Serpentine-rich rock

Diamond (or Cubic Zirconia)

Cubic Carbon (C) or Zirconium Dioxide (ZrO2)

Cubic Zirconia (CZ)

Zirconium dioxide (ZrO2)

Diamond (or Clear Quartz / Cubic Zirconia)

Carbon (C) or Silicon Dioxide (SiO2) / Cubic Zirconia (ZrO2)

Milky Quartz

Crystalline Silicon Dioxide (SiO2)

Red synthetic corundum (ruby-colored lab-grown sapphire)

Corundum, aluminum oxide (Al₂O₃), likely synthetic and chromium-colored

Silicon

Crystalline Silicon (Si)

Faceted Clear Gemstone (Likely Quartz or Cubic Zirconia)

Silicon Dioxide (SiO2) or Zirconium Dioxide (ZrO2)

Man-made Slag (Industrial Byproduct)

Anthropogenic Glassy Residue

Man-made Dyed Aura Quartz

Silicon Dioxide (SiO2) with metallic coating/dye

Strawberry Quartz

Silicon Dioxide with Hematite inclusions (SiO2 + Fe2O3)

Amethyst (Tumbled)

Silicon Dioxide (SiO2) with Fe3+ impurities

Blue Sapphire

Corundum (Al2O3)

Tumbled Clear Quartz and Citrine Points

Silicon Dioxide (SiO2)

Faceted Quartz or Cubic Zirconia

SiO2 (Quartz) or ZrO2 (Cubic Zirconia)

Colorless faceted gemstone, likely cubic zirconia

Cubic zirconia (synthetic ZrO₂), possibly glass or white sapphire

Colorless faceted gemstone, likely cubic zirconia

Synthetic cubic zirconia (zirconium dioxide, ZrO₂); identity is visual and not definitive

Silicon Carbide (Carborundum)

Silicon Carbide (SiC)

Rainbow Hematite (Man-made/Treated)

Tumbled Hematite with Titanium/Anodized coating (Iron(III) oxide, Fe2O3)

Colorless faceted gemstone (likely cubic zirconia)

Cubic zirconia, zirconium dioxide (ZrO₂); possibly synthetic quartz or glass imitation

Blue Sapphire

Corundum (Al2O3 with trace Titanium and Iron)

Quartz (Smoky Quartz variant)

Silicon Dioxide (SiO2)

Emerald

Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities

Garden Quartz (Lodalite)

Silicon Dioxide with various mineral inclusions (SiO2)

Green cabochon gemstone pendant, likely turquoise or dyed green turquoise

Probably turquoise, CuAl₆(PO₄)₄(OH)₈·4H₂O; exact identification requires testing

Smoky Quartz

Silicon Dioxide (SiO2)

Slag (Anthropogenic Glass/Iron byproduct)

Ferro-silicate Slag

Blue Sapphire

Corundum (Al2O3)

Ruby

Corundum (Al2O3 with Chromium trace)

Banded Black Onyx (Chalcedony)

Silicon Dioxide (SiO₂)

Green glassy cabochon, likely dyed or synthetic material

Uncertain; possibly green obsidian, chrysoprase, or synthetic glass

Green Aventurine

Quartz (SiO2) with Fuchsite inclusions