Mineraloid Like Synthetic Material

Snowflake Obsidian

Volcanic Glass with Spherulite inclusions (Chemical composition: 70–75% SiO2 + MgO, Fe3O4)

Blue-green tumbled gemstone, likely turquoise or dyed turquoise

Turquoise: hydrated copper–aluminum phosphate, CuAl₆(PO₄)₄(OH)₈·4H₂O; identification is uncertain from the blurry image

Blue sapphire

Corundum, aluminum oxide (Al₂O₃), colored blue mainly by iron and titanium

Black Obsidian

Obsidian (Volcanic Glass)

Obsidian with Mahogany Phasing

Volcanic Glass (SiO2 + Fe2O3)

Snowflake Obsidian

Volcanic Glass with Spherulite Inclusions (70–75% SiO2)

Blue topaz-style pendant (stone identity uncertain)

Possibly blue topaz (Al₂SiO₄(F,OH)₂); the image cannot confirm whether the stone is natural or synthetic

Faceted colorless gemstone, likely glass or diamond imitation

Unidentified; possibly diamond (carbon, C) or cubic zirconia (zirconium dioxide, ZrO₂)

Shungite

Carbonaceous rock (primarily amorphous carbon)

Ruby

Corundum (Al2O3)

Yellow amber beads

Amber (fossilized tree resin; organic mineraloid, not a true mineral)

Colorless faceted gemstone, likely glass or cubic zirconia

Probably cubic zirconia (zirconium dioxide, ZrO₂); diamond cannot be confirmed visually

Mahogany Obsidian

Volcanic Glass (predominantly SiO2 with inclusions of Hematite or Magnetite)

Gemstone-set silver jewelry piece

Likely mixed faceted gemstones in a silver-colored metal setting; stones may include sapphire, ruby/garnet, and yellow sapphire or citrine, but the image is insufficient for species-level identification.

Hematite

Iron(III) oxide, Fe2O3

Strawberry Quartz (Hematoid Quartz)

Silicon Dioxide with Iron Oxide inclusions (SiO2 + Fe2O3)

Cultured Marble (Synthetic)

Polymer-matrix composite (typically calcium carbonate in polyester resin)

Black obsidian

Volcanic glass; predominantly rhyolitic silica glass (approximately 70–80% SiO₂)

Emerald

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

Mahogany Obsidian

Volcanic Glass with Hematite inclusions (SiO2 + Fe2O3)

Obsidian

Obsidian (Extrusive Volcanic Glass)

Clear faceted gemstone in a metal jewelry setting (likely imitation glass or cubic zirconia)

Unidentified transparent faceted stone; possibly cubic zirconia (ZrO₂) or glass

Snowflake Obsidian

Volcanic Glass (SiO2) with Cristobalite inclusions

Black Opal Ring (Carved Opal)

Hydrated Silicon Dioxide (SiO2·nH2O)

Amber

Succinite

Mahogany Obsidian

Obsidian (Volcanic Glass with Hematite inclusions)

Cubic Zirconia (CZ)

Cubic Zirconium Dioxide (ZrO2)

Hematite

Iron(III) oxide (Fe2O3)

Blue sapphire (likely synthetic or treated corundum)

Corundum, aluminum oxide (Al₂O₃), blue from iron and titanium impurities

Mahogany Obsidian

Volcanic Glass (Silicate: SiO2 + Fe2O3)

Blue glassy-looking specimen, possibly dyed or coated mineral

Not identifiable from the photograph; possibilities include dyed quartz or glassy slag, but composition cannot be established visually.

Polished pink corundum (likely treated ruby)

Corundum, aluminum oxide (Al₂O₃); ruby when red-to-pink from chromium

Clear quartz crystal sphere

Quartz (silicon dioxide, SiO₂)

Hematite bead bracelet

Hematite (iron(III) oxide, Fe₂O₃), likely polished magnetic hematite or hematite-coated beads

Snowflake Obsidian

Volcanic Glass with Spherulite Inclusions (primarily SiO2)

Turquoise cabochon or turquoise-bearing material

Turquoise, hydrated copper aluminum phosphate — CuAl₆(PO₄)₄(OH)₈·4H₂O

Obsidian

Obsidian (Volcanic Glass), primarily SiO2 (Silicon Dioxide)

Black Obsidian

Obsidian (Volcanic Glass, ~70% SiO2)

Emerald in Matrix

Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities

Obsidian

Obsidian (Volcanic Glass), primarily SiO2 (Silicon Dioxide)

Ruby (Faceted)

Corundum (Al2O3:Cr)

Common Opal (Potch)

Hydrated Silica (SiO2·nH2O)