Synthetic (Man Made Material Mimicking Natural Stone)

Aventurine Quartz

Silicon Dioxide (SiO2) with Fuchsite inclusions

Man-made Green Quartz (Lab-grown or Treated)

Silicon Dioxide (SiO2) with artificial coloration

Sapphire

Corundum (Al2O3)

Goldstone

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

Diamond (in a gold ring)

Diamond (pure carbon, C)

Gemstone Ring

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

Diamond (or Cubic Zirconia)

Carbon (C) or Zirconium Dioxide (ZrO2)

Green cabochon gemstone pendant, likely turquoise or dyed green turquoise

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

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

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

Red Slag Glass

Amorphous Silica (Industrial byproduct with metallic oxide dopants)

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

Diamond (or Cubic Zirconia)

Carbon (C) or Zirconium Dioxide (ZrO2)

Green glass-like cabochon, likely synthetic glass or resin

Unidentified green transparent material; possibly molded glass, synthetic spinel, or resin

Sea Glass

Amorphous silicon dioxide (man-made glass weathered by nature)

Aura Quartz Geodes (Lab-Altered)

Silicon Dioxide (SiO2) with Metallic Vapor Deposition

Magnetic Hematite (Man-made)

Iron Oxide (Fe2O3) with Barium-Strontium Ferrite

Chakra Stone (Composite / Man-made Bonded Gemstones)

Composite of Quartz, Lapis Lazuli, Aventurine, Tiger's Eye, and Jasper (SiO2, (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, etc.)

Goldstone (Brown/Gold)

Aventurine Glass (Man-made glass with Copper inclusions)

Chert (Chalky Flint Node)

Chert (Microcrystalline Quartz, SiO2)

Terrazzo (Man-made Composite)

Cementitious or Resin-bound Lithic Composite

Slag

Glassy silicate byproduct (anthropogenic material)

Cullet Glass (Slag Glass)

Amorphous Silicon Dioxide (Industrial Man-made)

Silicon Carbide (Carborundum)

Silicon Carbide (SiC) / Moissanite (natural)

Titanium-Coated Hematite (Aura Hematite)

Titanium-bonded Hematite (Fe2O3 with a Ti coating)

Picture Jasper

Silicified sedimentary or volcanic rock (primarily SiO2)

Goldstone (Red)

Aventurine Glass

Cubic Zirconia

Cubic Zirconium Dioxide (ZrO2)

Lava Rock with Fabric Impression

Scoria or Basalt with anthropogenic impressions

Titanium Amethyst Geode

Silicon Dioxide (SiO2) with Titanium/Metal Vapor Deposition Layer

Aura Quartz (Titanium/Rainbow Quartz)

SiO2 (Silicon Dioxide) with metallic coating

Metal Chain Belt with Square Plates

Not applicable (man-made)

Concrete rubble

Anthropogenic conglomerate

Silicon Carbide (Carborundum)

Silicon Carbide, SiC

Carved Mottled Greenish-Yellow Crystal/Glass Object

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

Likely tumbled or cut quartz/chalcedony fragment

Silicon dioxide (SiO₂), probably microcrystalline quartz or quartz

Slag Glass

Anthropogenic Amorphous Silicon Dioxide

Tumbled milky quartz pebble

Quartz (silicon dioxide, SiO₂), opaque-to-translucent milky variety

Slag

Anthropogenic Vitreous Silica/Iron oxides

Diamond (or Diamond Simulant)

Carbon (C) or Cubic Zirconia (ZrO2)

Cat's Eye Moonstone (Simulated/Synthetic or natural Cat's Eye Quartz/Glass)

There is no single scientific name. The appearance suggests either: Moonstone (feldspar group), Cat's Eye Quartz (SiO2), Apatite (Ca5(PO4)3(F,Cl,OH)), or most likely a synthetic material such as Fiber Optic Glass or 'Opalite' (a type of glass).

Synthetic Blue Aura Quartz

Silicon Dioxide (SiO2) with Metallic Infusion

Sandstone-based Concrete Fragment

Cementitious Composite with Sedimentary Aggregate