Mineraloid (Synthetic)

Amber

Succinite (organic hydrocarbon)

Burmese Amber (Burmite)

Burmite (C10H16O)

Amber

Succinates (Organic Fossilized Resin)

Amber

Succiniferous fossil resin (C10H16O)

Amber

Succinite (Resinous fossilized tree sap)

Amber

Succinite (specific to Baltic amber), fossilized tree resin

Amber

Succinates

Pink Opal

Hydrated Silica (SiO2·nH2O) with Palygorskite inclusions

Precious Opal

Hydrated Silica (SiO2·nH2O)

Pink Opal

Hydrated Amorphous Silica (SiO2·nH2O)

Amber

Succiniferous fossil resin (C10H16O)

Cullet Glass (Man-made Glass Slag)

Amorphous Silica (SiO2) with chemical additives

Amber (Black)

Amber (succinite, retinite, etc., specifically, heavily included/dark varieties)

Synthetic Costume Accessory (Non-Geological)

Polyester and Acrylic Fiber (Anthropogenic polymer)

Lapis Lazuli

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

Small clear crystal, possibly quartz or glass-like gemstone

Uncertain; likely quartz (SiO₂), but the image is insufficient to exclude man-made glass or cubic zirconia

Amber

Succinite (organic mineraloid); Chemical formula: C10H16O

Faceted dark gemstone, likely black spinel

Spinel, MgAl₂O₄ (visual identification is uncertain; black sapphire or other dark gems can look similar)

Cubic Zirconia

Cubic Zirconium Dioxide (ZrO2)

Cubic Zirconia

Zirconium dioxide (ZrO2)

Likely synthetic ruby (corundum)

Corundum (Al₂O₃), probably laboratory-grown

Emerald

Beryl (Be3Al2(SiO3)6)

Obsidian

Volcanic Glass

Obsidian

Obsidian (Volcanic Glass)

Mahogany Obsidian

Obsidian (volcanic glass with hematite/magnetite inclusions)

Black Obsidian

Obsidian (Volcanic Glass, SiO2+)

Snowflake Obsidian

Spherulitic Volcanic Glass (primarily SiO2)

Limonite (Yellow Ochre)

Hydrated iron(III) oxide-hydroxide (FeO(OH)·nH2O)

Black Obsidian

Volcanic Glass (Primary composition: SiO2 - Silicon Dioxide)

Limonite (Yellow Ochre)

Limonite (Hydrated iron(III) oxide-hydroxide, FeO(OH)·nH2O)

Limonite/Goethite Concretion

Hydrated Iron(III) Oxide-hydroxide (FeO(OH)·nH2O)

Obsidian

Obsidian (Volcanic Glass)

Limonite (Ironstone)

Limonite (Hydrated iron(III) oxide-hydroxide, FeO(OH)·nH2O)

Limonite (Iron Ore)

Limonite (Hydrated iron oxide - FeO(OH)·nH2O)

Red faceted gemstone, likely synthetic ruby or red spinel

Ruby: corundum (Al₂O₃); spinel: MgAl₂O₄; visual identification alone is insufficient

Green faceted gemstone, likely synthetic glass or chrome-dyed stone

Undetermined; possibilities include green tourmaline, synthetic emerald, glass, or dyed quartz

Green cut gemstone, likely synthetic emerald or glass imitation

Undetermined; natural emerald is beryl (Be₃Al₂Si₆O₁₈), while the vivid, very uniform appearance may indicate imitation material

Red gemstone ring, likely ruby or synthetic ruby

Corundum (Al₂O₃), chromium-colored; natural versus synthetic cannot be determined from the photo

Red gemstone ring, likely synthetic ruby or red glass; exact stone cannot be confirmed from the image

Ruby (corundum, Al₂O₃) if natural; the setting appears to be silver-tone metal

Faceted gemstones, likely assorted quartz or glass-like gems

Not determinable from the photograph; possible quartz (SiO₂), topaz, or synthetic cubic zirconia

Opal cabochon or opal-like decorative specimen

Hydrated amorphous silica, SiO₂·nH₂O; likely synthetic or assembled opal material

Ruby / Red Tourmaline

Corundum (Al2O3) or Elbaite (Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)4)