Man Made Glass (Not A Natural Rock Or Mineral)

Diamond

Native Carbon (C)

Diamond (or Simulant)

Carbon (C) or Cubic Zirconia (ZrO2)

Chalcanthite (Likely Synthetic/Lab-Grown)

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

Cobalt Glass Slug (Cullet)

Man-made Silicate Glass with Cobalt Oxide (CoO)

Blue Goldstone

Aventurine Glass (SiO2 with Cobalt/Copper inclusions)

Blue Goldstone

Synthetic glass with copper or cobalt/manganese inclusions

Yellow Sapphire (Raw)

Corundum (Al2O3)

Mother of Pearl (Nacre)

Aragonite (CaCO3) with Organic Matrix

Diamond (in a jewelry setting)

Carbon (C)

Crushed Stone (Likely Limestone or Granite)

Calcium Carbonate (CaCO3) for Limestone / Quartz and Feldspar for Granite

Granite

Intrusive Felsic Igneous Rock (primarily Quartz and Feldspar)

Chert Arrowhead (Projectile Point)

Microcrystalline Quartz (Chert or Flint)

Sandstone Concretion

Clastic Sedimentary Concretion (typically Quartz/Silica with Iron Oxide)

Turquoise

Hydrated phosphate of copper and aluminum, CuAl6(PO4)4(OH)8·4H2O

Blue Slag Glass

Amorphous Silica (Industrial byproduct)

Ferro-silicate Slag

Industrial Vitrified Slag (High-silica amorphous glass)

Diamond (or Cubic Zirconia simulant)

Carbon (C) - Diamond / Zirconium dioxide (ZrO2) - CZ

Polished black stone, likely black obsidian

Obsidian (volcanic glass), chiefly silica-rich rhyolitic composition

Acrylic or Resin (Synthetic Imitation)

Polymethyl Methacrylate (PMMA) or Polyepoxide

Sandstone

Clastic sedimentary rock (Quartz arenite/Arkose)

Lapis lazuli and green-blue chalcedony jewelry

Lapis lazuli: lazurite-bearing metamorphic rock, chiefly lazurite (Na₃Ca(Al₃Si₃O₁₂)S) with calcite and pyrite; second stone: likely chrysoprase or green-blue chalcedony (microcrystalline quartz, SiO₂)

Blue Goldstone

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

Artisanal Glass Beads (Simulated Goldstone or Aventurine Glass)

Silicon Dioxide (SiO2) with metallic inclusions

Rough Corundum (Sapphire/Ruby mixture)

Corundum (Aluminum Oxide, Al2O3)

Blue Goldstone

Aventurine Glass (Silicon Dioxide with metal inclusions)

Sandstone (Pebble)

Sandstone (arenite, arkose, wacke depending on composition)

Luminous Stone (Glow-in-the-dark Synthetic/Man-made Stone)

Strontium Aluminate tinted glass or resin (Crystalline silicate/oxide mix)

Blue Goldstone

Aventurine Glass

Diamond

Diamond (pure Carbon, C)

Terrazzo (with Marble and Granite fragments)

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

Chert (Chalky Flint Node)

Chert (Microcrystalline Quartz, SiO2)

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

Silicon Dioxide (SiO2) with artificial coloration

Note: Item is a Synthetic/Man-made Object

Titanium-coated Stainless Steel (Fe-Cr-Ni-Ti)

Aura Quartz / Rainbow Aura Quartz

Silicon Dioxide (SiO2) with metallic vapor coating

Bismuth

Bismuth (Bi)

Brecciated Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

Diamond

Carbon (C)

Moissanite

Silicon Carbide (SiC)

Granite

Phaneritic Plutonic Felsic Rock (SiO2, KAlSi3O8, NaAlSi3O8, CaAl2Si2O8)

Banded Sandstone

Arenite with Liesegang banding

Labradorite

Labradorite ((Ca, Na)(Al, Si)4O8)

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

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