Not A Rock (Synthetic Material)

Red/pink faceted gemstone, likely synthetic ruby or red glass

Corundum (Al₂O₃) if ruby; identity cannot be confirmed visually

Carnelian

Carnelian (Cryptocrystalline Quartz, SiO2)

Polished tiger’s eye

Quartz (microcrystalline SiO₂) with crocidolite-derived iron oxides

Larimar

Pectolite (NaCa2Si3O8(OH))

Blue Goldstone

Synthetic glass with copper or cobalt/manganese inclusions

Lava Stone and Chakra Beads

Basalt (with various mineral/synthetic beads)

Blue-green gemstone ring, likely treated turquoise or synthetic/treated beryl

Indeterminate from image; possibilities include turquoise (CuAl6(PO4)4(OH)8·4H2O), apatite, or treated beryl

Diamond (or Diamond Simulant)

Carbon (C) if diamond, various if simulant

Polished blue-black cabochon, likely blue obsidian or dyed glass-like stone

Indeterminate from image; possible natural obsidian (volcanic glass), commonly SiO₂-rich rhyolitic glass

Blue gemstone, likely iolite or blue sapphire

Iolite (cordierite, Mg₂Al₄Si₅O₁₈) or corundum (sapphire, Al₂O₃)

Colorless faceted gemstone, likely glass or cubic zirconia

Probably cubic zirconia (zirconium dioxide, ZrO₂); diamond cannot be confirmed visually

Amethyst cabochon

Quartz, silicon dioxide (SiO₂), purple variety colored mainly by iron impurities and irradiation

Druzy quartz on matrix

Quartz (SiO₂), microcrystalline crystal coating

Faceted golden beryl (likely heliodor)

Beryl, Be₃Al₂Si₆O₁₈; yellow color from iron impurities

Green beryl gemstone (likely emerald or green beryl)

Beryl, Be₃Al₂Si₆O₁₈; green color from chromium/vanadium or iron

Turquoise

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

Pearls

Pearl: biomineralized aragonite (CaCO₃) and conchiolin

Tumbled red jasper

Jasper, an opaque microcrystalline variety of quartz (SiO₂), colored mainly by iron oxides

Limonite (Iron Ore)

Limonite; FeO(OH)·nH2O

Weathered granitic rock fragment

Granite, likely quartz–feldspar–biotite aggregate

Blue Sapphire

Corundum (Al2O3) with traces of Iron and Titanium

Faceted colorless gemstone, likely glass or diamond imitation

Unidentified; possibly diamond (carbon, C) or cubic zirconia (zirconium dioxide, ZrO₂)

Rough Ruby

Corundum (Al2O3 with Chromium impurities)

Emerald in Matrix

Beryl (Be3Al2Si6O18) with trace amounts of Chromium/Vanadium

Blue Goldstone

Aventurine Glass

Plastic Building Toy (Lego-style piece)

Acrylonitrile Butadiene Styrene (ABS)

Tanzanite earrings

Tanzanite, blue-violet zoisite (Ca₂Al₃(SiO₄)₃(OH))

Opalite

Synthetic Glass (Hydrated Silica Simulant)

Unidentified polished dark gemstone cabochon

Possibly hematite, obsidian, jet, or dark agate; image insufficient for a definitive identification

Mounted clear gemstone, likely cubic zirconia

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

Tumbled amethyst

Amethyst, purple quartz (SiO₂)

Labradorite cabochon

Labradorite, a calcium-rich plagioclase feldspar; approximately (Ca,Na)(Al,Si)₄O₈

Opalite (a synthetic glass)

Silicon Dioxide (SiO2) with various additives; not a true mineral but a man-made gem simulant

Marine gastropod shell

Calcium-carbonate shell, primarily aragonite; species cannot be determined from the image

Cubic Zirconia

Zirconium Dioxide (ZrO2)

Blue Goldstone

Auraventurine (Synthetic glass with cobalt and copper inclusions)

Black spinel bead bracelet

Spinel (magnesium aluminate), MgAl₂O₄

Opalite

Man-made Glass (Synthetic Opalized Glass)

Tiger’s eye

Quartz (SiO₂), fibrous pseudomorph after crocidolite

Lapis Lazuli (Low Grade)

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

Bauxite

Bauxite (Mixture of Hydrous Aluminum Oxides)

Lapis Lazuli

Lazurite-dominant metamorphic rock, Na8[Al6Si6O24]n(S,Cl,SO4,OH)2