Synthetic Material (Not A Rock Or Mineral)

K2 Stone (or K2 Jasper)

Azurite-in-Granite (Potassium Feldspar, Quartz, Plagioclase, Muscovite, and Azurite)

Sandstone

Clastic sedimentary rock (primarily SiO2)

Emerald

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

Asphalt Chunk

Asphalt concrete

Ametrine

Silicon Dioxide (SiO2) with iron impurities

Polished pink quartz cabochon

Quartz (SiO₂), likely rose quartz or included quartz

Pale quartz-rich stone, possibly calcite

Likely quartz (SiO₂) or calcite (CaCO₃); image resolution prevents confident separation

Red gemstone ring, likely garnet or synthetic ruby

Possibly almandine garnet (Fe₃Al₂(SiO₄)₃) or corundum/ruby (Al₂O₃); image alone cannot distinguish

Synthetic Costume Glove (Paws)

Polyethylene terephthalate (Polyester) & Polyurethane blend

Smoky Quartz

Silicon Dioxide (SiO2)

Blue Sapphire

Corundum (Al2O3)

Ruby (Rough/Raw)

Corundum (Al2O3:Cr)

Hematite

Hematite (Fe₂O₃), likely a polished specular hematite palm stone

Ruby

Corundum (Aluminum Oxide with Chromium), Al2O3:Cr

Diamond (in jewelry)

Cubic Carbon (C)

Lapis Lazuli (in Matrix)

Na8[Al6Si6O24]S2 (Lazurite as the primary component)

Ruby (varieties of Corundum)

Aluminum oxide (Al2O3) with Chromium traces

Cubic Zirconia (Faceted)

Zirconium Dioxide (ZrO2)

Likely quartz-rich rock fragment

Indeterminate; possibly quartz-bearing granite or quartzite

Opalite

Synthetic Glass (Hydrated Crystalline Silicon Dioxide simulation)

Sedimentary Rock (Limestone or Siltstone pebble)

Sedimentary rock fragment

Faceted yellow gemstone, likely citrine

Citrine (quartz), SiO₂; possibly yellow sapphire or synthetic glass without testing

Ruby

Corundum (Al2O3 with Chromium impurities)

Banded Black Onyx (Chalcedony)

Silicon Dioxide (SiO₂)

Agate

Cryptocrystalline quartz, Chalcedony (SiO2)

Smoky Quartz

Silicon Dioxide (SiO2)

Jadeite and Mixed Gemstones (Ruby, Sapphire, Emerald)

Jadeite (NaAlSi2O6), Corundum (Al2O3), Beryl (Be3Al2(Si6O18))

Silicon Carbide (Carborundum)

Silicon Carbide (SiC)

Sandstone (Tumbled/River Pebble)

Arenite (composed primarily of SiO2)

Polymer Clay (Mock Mineral)

Polyvinyl chloride (PVC) with plasticizers and pigment

Ruby

Corundum (Al2O3 with Chromium traces)

Agate (Polished Sphere)

Silicon Dioxide (SiO2)

Synthetic Costume Accessory (Non-Geological)

Polyester and Acrylic Fiber (Anthropogenic polymer)

Ruby (in jewelry)

Corundum (Al2O3 with Chromium traces)

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

Emerald

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

Diamond (or high-quality simulant like Cubic Zirconia)

Carbon (C) - Native Element

Opalite

Synthetic Glass (Silica-based)

Ruby (set in a gold pendant)

Ruby (Variety of Corundum, Al2O3)

Synthetic Resin (Artificial Specimen)

Polyurethane or Polyester Resin

Corundum

Corundum (Al2O3)

Opalite

Man-made opalized glass