Synthetic (Not A Rock Or Mineral)

Lapis Lazuli

Lapis lazuli (Complex silicate rock containing Lazurite (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, Calcite, and Pyrite)

Goldstone

N/A (Synthetic Glass with Copper Inclusions)

Garden Quartz (Lodalite)

Silicon Dioxide with various mineral inclusions (SiO2)

Colorless faceted gemstone, likely cubic zirconia

Cubic zirconia (zirconium dioxide, ZrO₂); visual confirmation is unavailable

Cubic Zirconia (Faceted)

Zirconium dioxide (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).

Smoky Quartz

Silicon Dioxide (SiO2)

Possible iron-rich nodule or weathered ironstone

Limonite/goethite-rich concretion; commonly represented as FeO(OH)·nH₂O with iron oxides

Metal Chain Belt with Square Plates

Not applicable (man-made)

Moissanite

Silicon Carbide (SiC)

Synthetic Faux Fur Fursuit

Polyacrylonitrile / Polyester (Synthetic Textile)

Bornite (“peacock ore”), likely weathered copper sulfide

Bornite, Cu₅FeS₄; possibly chalcopyrite, CuFeS₂, with iridescent tarnish

Pink granite

Granitic rock, chiefly quartz, alkali feldspar, plagioclase, and biotite/hornblende

Rounded pink granite cobble

Granite, chiefly quartz–alkali feldspar–plagioclase–biotite

Druzy quartz on matrix

Quartz (SiO₂), microcrystalline crystal coating

Opalite (Man-made Glass)

Synthetic Silicon Dioxide Glass (SiO2 + metal oxides)

Pearls

Pearl: biomineralized aragonite (CaCO₃) and conchiolin

Mixed gemstone jewelry collection

Various gemstone minerals, including likely amethyst (quartz), sapphire or iolite, garnet, pearl, turquoise, and colored beryl or tourmaline

Blue Sapphire

Corundum (Al2O3)

Bauxite

Bauxite (principal ore of aluminum, primarily Al(OH)3)

Gemstone Ring

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

Cowrie shell

Marine gastropod shell; likely a cowrie (family Cypraeidae), species not identifiable from the image

Terrazzo (Synthetic Composite Rock)

Cementitious or Epoxy Resin-bound Aggregates

Diamond (or Cubic Zirconia simulant)

Carbon (C) / Zirconium Dioxide (ZrO2)

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

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

Opalite

Man-made Glass (SiO2 + additives)

Dyed Agate

Agate (Cryptocrystalline Quartz), SiO2

Tumbled sodalite

Sodalite, Na₈(Al₆Si₆O₂₄)Cl₂

Mounted clear gemstone, likely cubic zirconia

Cubic zirconia (zirconium dioxide, ZrO₂), synthetic; exact stone cannot be confirmed from the image

Pink Sapphire

Corundum (Al2O3 with trace Chromium and Iron)

Lapis Lazuli (Tumbled)

Lazurite-dominated contact metamorphic rock

Lapis Lazuli

Na8[Al6Si6O24]Sn (Lazurite-rich metamorphic rock)

Lapis Lazuli

Lazurite-dominant Metamorphic Rock (complex aluminosilicate)

Blue Goldstone

Man-made glass with crystalline copper/cobalt inclusions

Chalcanthite (Likely Synthetic/Lab-Grown)

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

Silicon Carbide (Carborundum)

Moissanite (SiC)

Weathered granite or granitic gneiss pebble

Granite: quartz + feldspar + mica; possibly weakly foliated gneiss

Weathered granitic rock fragment

Granite, likely quartz–feldspar–biotite aggregate

Vesicular basalt (likely weathered volcanic scoria)

Basaltic scoria; primarily plagioclase, pyroxene, and olivine

Vesicular basalt (scoriaceous basalt)

Basalt; predominantly plagioclase, clinopyroxene, and olivine with iron oxides

Blue Sapphire (Synthetic or Man-made Glass Imitation)

Corundum (Al2O3) if natural; Lead-glass or Spinal if synthetic

Bauxite

AlOx(OH)3-2x (mixture of Gibbsite, Boehmite, and Diaspore)