Mineral Simulant (Synthetic Glass)

Yellow faceted gemstone, likely citrine or yellow sapphire

Uncertain; probable quartz (SiO₂) or corundum (Al₂O₃)

Carborundum (Silicon Carbide)

Silicon carbide (SiC)

Hematite

Iron(III) oxide (Fe2O3)

Ruby (set in a ring)

Corundum, Al₂O₃, colored red by chromium; the pictured stone may be synthetic or imitation, which cannot be confirmed from the photo.

Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Hematite bead strand

Hematite, α-Fe₂O₃ (iron(III) oxide)

Diamond

Carbon (C)

Raw Topaz

Aluminum Silicate Fluoride Hydroxide, Al2SiO4(F,OH)2

Dyed Agate

Silicon Dioxide (SiO2) - variety Chalcedony

Ruby

Corundum (Al2O3 with Chromium traces)

Malachite

Copper carbonate hydroxide [Cu2CO3(OH)2]

White cabochon gemstone, likely milky chalcedony or opalite

Chalcedony: microcrystalline quartz, SiO₂; appearance may also indicate synthetic opalite glass

Ruby (faceted gemstone in a ring)

Corundum, Al₂O₃; red color typically from trace chromium

Mixed gemstone jewelry collection

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

Faceted Gemstones (Mixed)

Various (e.g., Corundum, Beryl, Quartz, or synthetic equivalents)

Turquoise cabochon jewelry

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

Heart-shaped faceted gemstone pendant

Likely yellow quartz (citrine) or synthetic yellow stone, set in metal with small clear accent stones

Blue-green tumbled gemstone, likely turquoise or dyed turquoise

Turquoise: hydrated copper–aluminum phosphate, CuAl₆(PO₄)₄(OH)₈·4H₂O; identification is uncertain from the blurry image

Polished pink quartz cabochon

Quartz (SiO₂), likely rose quartz or included quartz

Diamond ring

Diamond, crystalline carbon (C)

Cut red gemstone, likely ruby

Ruby, gem-quality corundum (Al₂O₃) colored by chromium

Carnelian

Carnelian (Cryptocrystalline Quartz, SiO2)

Red gemstone ring, likely ruby or synthetic ruby

Corundum (Al₂O₃), chromium-colored; the image alone cannot confirm whether it is natural or synthetic

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

Rough Ruby

Corundum (Al2O3 with Chromium impurities)

Red faceted gemstone, likely synthetic ruby

Corundum (Al₂O₃); ruby is red chromium-bearing corundum

Hematite

Iron(III) oxide (Fe2O3)

Blue Sapphire

Corundum (Al2O3 with Cr, Fe, and Ti trace elements)

Emerald (green gemstone) pendant

Emerald, green variety of beryl (Be₃Al₂Si₆O₁₈); stones appear to be faceted and set in jewelry

Opal cabochon

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

Polished honey-yellow quartz-like crystal

Quartz (SiO₂), possibly citrine or heat-treated amethyst

Man-made Jewelry Charm (Enameled Metal)

Not a natural mineral; composed of base metal alloy (likely zinc or brass) and epoxy resin/enamel.

Diamond ring

Diamond (crystalline carbon, C) set in a metal ring; the small stones appear diamond-like but cannot be confirmed from the image.

Lapidary Wax (imitation/wax model)

Hydrocarbon wax blend with colorant (imitating Lapis Lazuli/Emerald)

Hematite bead bracelet

Hematite (Fe₂O₃), likely polished or magnetically enhanced beads

Jade bangle

Likely nephrite jade (actinolite–tremolite amphibole); possibly jadeite

Bismuth

Bismuth (Bi)

Opalite (a synthetic glass, often confused with Opal)

Silicon dioxide glass (SiO2nH2O, for natural opal)

Faceted colorless gemstone, likely diamond

Diamond (crystalline carbon, C)

Pink Dyed Agate

Silicon Dioxide (SiO2) - Variety Agate

Smoky Quartz

Silicon Dioxide (SiO2)

Faceted green gemstone, possibly peridot

Uncertain from the image; peridot is gem-quality olivine, (Mg,Fe)₂SiO₄