Not A Rock (Synthetic Material)

Lapis Lazuli

Lapis lazuli (Rock composed primarily of Lazurite (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, Calcite, and Pyrite)

Lapis Lazuli

Lapis Lazuli (Complex aggregate including Lazurite: (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)

Lapis lazuli

Lapis lazuli; primarily lazurite (Na₃Ca(Si₃Al₃)O₁₂S), with calcite and pyrite

Bauxite

Bauxite (Mixture including Gibbsite Al(OH)3, Boehmite γ-AlO(OH), and Diaspore α-AlO(OH))

Opal

Hydrated Amorphous Silica (SiO2·nH2O)

Black spinel bead strand

Spinel, magnesium aluminum oxide (MgAl₂O₄)

Turquoise cabochon jewelry

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

Smoky Quartz

Silicon Dioxide (SiO2)

Smoky Quartz

Silicon Dioxide (SiO2)

Ruby

Corundum (Al2O3) with Chromium traces

Opalite (a synthetic glass, often confused with Opal)

Silicon dioxide glass (SiO2nH2O, for natural opal)

Opal cabochon

Opal, hydrated amorphous silica (SiO₂·nH₂O), likely common or Ethiopian precious opal

Lapis Lazuli

Lapis Lazuli (Complex aggregate mainly of Lazurite: (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)

Diamond (Heart Cut)

Carbon (C)

Lapis Lazuli

Lapis Lazuli (Rock composed primarily of Lazurite (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, Calcite, and Pyrite)

Blue Sapphire

Corundum (Al2O3)

Red-orange cabochon, likely carnelian or glass imitation

Carnelian: chalcedony (microcrystalline SiO₂), commonly iron-colored

Faceted quartz crystal sphere (likely rock crystal)

Quartz, silicon dioxide (SiO₂)

Dyed Agate

Agate (Cryptocrystalline Quartz), SiO2

Pink Sapphire

Corundum (Al2O3 with trace Chromium and Iron)

Shale with Vein Infillings

Shale (a fine-grained clastic sedimentary rock). The veins could be Calcite (CaCO3), Quartz (SiO2), or other minerals.

Lapis Lazuli

Lapis Lazuli (Primary mineral: Lazurite, (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)

Lapis Lazuli

Lazurite-rich metamorphic rock ((Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)

Bauxite (Laterite Clay)

Bauxite (mixture of Hydrous Aluminum Oxides: Gibbsite Al(OH)3, Boehmite and Diaspore AlO(OH))

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Note regarding baguette production (not a rock)

Digital text image - Somali language

Lapis Lazuli (Raw Ore)

Na8[Al6Si6O24]n(S,Cl,SO4,OH)2 (Lazurite component)

Lapis Lazuli

Lapis Lazuli (A complex rock primarily composed of Lazurite: (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)

Polished pink quartz cabochon

Quartz (SiO₂), likely rose quartz or included quartz

Sapphire (likely blue synthetic sapphire or blue glass in a ring)

Corundum (Al₂O₃), specifically the blue variety due to trace amounts of iron and titanium impurities. If synthetic, it would still be Al₂O₃.

Fossilized tooth, likely mammoth or mastodon molar fragment

Proboscidean molar enamel and dentin; Mammuthus or Mammut sp. (tentative)

Lapis Lazuli (in Matrix)

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

Lapis Lazuli

Lazurite-dominant rock, (Na,Ca)8(AlSiO4)6(SO4,S,Cl)2

Diamond

Native Carbon (C)

Note: Item is not a geological specimen

Homo sapiens (Dermal Appendage: Pilus)

Lapis Lazuli

Na8[Al6Si6O24]S2 (Lazurite component), a rock composed primarily of Lazurite, Calcite, and Pyrite

Lapis Lazuli

Lazurite-rich metamorphic rock

Lapis Lazuli

Sodium aluminum silicate with sulfur (main component: Lazurite [(Na,Ca)8(AlSiO4)6(SO4,S,Cl)2])

Moonstone (bead form)

Potassium Aluminum Silicate (KAlSi3O8) - a variety of Orthoclase Feldspar

Pink amethyst or pale pink quartz gemstone

Quartz, SiO₂; pink coloration may result from microscopic inclusions or irradiation-related defects

Colorless faceted gemstone, likely cubic zirconia

Cubic zirconia (synthetic ZrO₂), possibly glass or quartz

Goldstone (aventurine glass)

Synthetic copper-bearing soda-lime glass; commonly sold as red goldstone