Tektite (Natural Glass)

Colorless faceted gemstone, likely quartz (rock crystal)

Quartz, silicon dioxide (SiO₂); exact identification cannot be confirmed from the photograph

Diamond ring

Diamond (crystalline carbon, C)

Colorless faceted gemstone (likely cubic zirconia)

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

Goldstone (blue-goldstone–style glass) beads

Artificial aventurine glass, typically silica glass with copper inclusions; not a natural mineral

Sandstone

Sandstone (SiO2-rich detrital sedimentary rock)

Red glassy mineral specimen, likely synthetic ruby or red spinel

Most consistent with synthetic corundum (Al₂O₃, ruby) or synthetic spinel (MgAl₂O₄); exact identification requires testing

Quartz (Yellow / Citrine Pebble)

Silicon Dioxide (SiO2)

Blue quartzite or blue aventurine glass-like aggregate

Quartzite, predominantly SiO₂ (identification uncertain from image)

Slag Glass

Silicon dioxide with impurities

Sandstone

Sandstone (Sedimentary rock composed of silicate grains)

Colorless faceted gemstone, likely cubic zirconia

Cubic zirconia (synthetic zirconium dioxide, ZrO₂); possibly colorless quartz or laboratory diamond

Pink faceted gemstone, likely synthetic ruby or pink sapphire

Corundum (Al₂O₃), possibly chromium-colored ruby; synthetic origin likely

Pink Quartz / Sea Glass

Silicon Dioxide (SiO2)

Obsidian (Blue)

Volcanic Glass (SiO2)

Ruby (set in a ring; possibly synthetic or imitation)

Corundum, Al₂O₃; red color is typically caused by chromium

Colorless faceted gemstone (likely glass or cubic zirconia)

Likely cubic zirconia, ZrO₂; exact identification is uncertain from the photograph

Sandstone

Arenite (SiO2 based clastic rock)

Red gemstone ring; likely synthetic ruby or red glass

Undetermined from the image; ruby is corundum (Al₂O₃), while red glass is amorphous silicate

Gemstone Ring

Various (Likely Glass, Cubic Zirconia, or assorted semi-precious stones)

Sandstone

Arenite (SiO2 based)

Citrine Quartz

Silicon Dioxide (SiO2)

Citrine

Silicon Dioxide (SiO2) with iron impurities

Raw Citrine

Citrine (Silicon Dioxide, SiO2)

Tumbled white chalcedony (likely milky quartz)

Chalcedony, microcrystalline quartz (SiO₂)

Goldstone

Not a natural mineral or rock. It is an ornamental glass.

Opalite Egg

Synthetic Glass (Simulated Opal)

Tumbled Citrine (or Heat-Treated Quartz)

Silicon dioxide (SiO2)

Pink/red faceted gemstone, likely synthetic ruby or pink sapphire

Corundum, aluminum oxide (Al₂O₃); likely lab-grown or treated material

Small faceted diamond-like gemstones

Likely diamond (crystalline carbon, C), but visual identification is uncertain

Black Obsidian

Obsidian / Amorphous volcanic glass (SiO2)

Blue goldstone

Man-made aventurine glass containing metallic copper particles; not a natural mineral

Green faceted gemstone, likely synthetic glass or chrome-dyed stone

Undetermined; possibilities include green tourmaline, synthetic emerald, glass, or dyed quartz

Sandstone (likely Conglomerate or Gritstone)

Arenite (SiO2 based)

Blue Goldstone

Aventurine Glass

Opalite

Man-made Synthetic Glass (Silicon Dioxide with metal additives)

Green Aventurine

SiO2 (Silicon Dioxide with Fuchsite inclusions)

Goldstone and pink quartz bead strands

Goldstone is aventurescent copper-bearing glass; pink beads are likely rose quartz (SiO₂), though dyed or glass imitations are possible

Goldstone (Red/Brown)

Aventurine Glass (SiO2 with Copper inclusions)

Citrine (likely Heat-Treated)

Quartz (Silicon Dioxide, SiO2)

Citrine Quartz

Silicon Dioxide (SiO2)

Goldstone

N/A (Synthetic Glass with Copper Inclusions)

Likely clear quartz crystal (possibly cut/polished quartz or glass imitation)

Quartz, silicon dioxide (SiO₂)