Synthetic (Ceramic)

Opalite

Man-made synthetic glass with opalescent effects (SiO2 + metal oxides)

Clay (as a rock-forming material)

Clay minerals (e.g., Kaolinite group, Smectite group, Illite group, Chlorite group)

Rough Diamond (Uncut Diamond)

Native Carbon (C)

Synthetic Resin Charm (Seal Shape)

Polymer Resin with plastic glitter / Polyethylene terephthalate glitters

Turquoise

Hydrated phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O]

Chalcanthite (Likely Synthetic/Lab-Grown)

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

Corundum

Corundum (Al2O3)

Emerald

Beryl (Be3Al2Si6O18), specifically the green variety colored by chromium or vanadium

Diamond

Carbon (C), Native Element

Blue chalcedony cabochon (probable)

Chalcedony, cryptocrystalline quartz; silicon dioxide (SiO₂)

Lapis Lazuli

Lapis Lazuli (a rock composed primarily of Lazurite (Na,Ca)₈[(S,Cl,SO₄,OH)₂|(Al₆Si₆O₂₄)], with varying amounts of Calcite, Pyrite, and Sodalite.)

Opal

Hydrous silicon dioxide (SiO2·nH2O)

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.

Quartz Geode/Cluster

Quartz (SiO2)

Kyanite

Kyanite (Al2SiO5)

Amber

Succinite (specifically for Baltic amber; general formula C10H16O)

Talc

Talc (Mg₃Si₄O₁₀(OH)₂)

Polished blue chalcedony or glass-like quartz specimen

Chalcedony (microcrystalline SiO₂), possibly treated or synthetic; exact identification requires testing

Colorless faceted gemstone (most likely synthetic cubic zirconia)

Cubic zirconia, ZrO₂ (likely synthetic); natural alternatives include quartz or diamond

Goldstone (aventurine glass)

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

Diamond (appearing as a jewelry centerpiece)

Diamond (Formula: C)

Jewelry Chain with Blue and Clear Gemstones (Likely Cubic Zirconia)

Cubic Zirconia (ZrO₂), Silver or White Gold/Platinum Alloy

Lepidolite

K(Li,Al)3(Si,Al)4O10(F,OH)2

Strawberry Quartz

Silicon Dioxide (SiO2) with inclusions of Goethite or Hematite

Diamond

Carbon (C)

Sapphire

Corundum (Al2O3)

Black Tourmaline

Schorl (Na(Fe²⁺)₃Al₆(BO₃)₃Si₆O₁₈(OH)₄)

Pearl-embellished decorative cross

Pearl (biogenic calcium carbonate, predominantly aragonite) with rhinestone-mounted glass or synthetic gemstones

Wood Beads (Palmwood/Ebony)

Various species for wood, but often refers to woods like Palmwood (e.g., Borassus flabellifer) or Ebony (Diospyros spp.) for their distinctive grain and hardness.

Quartz (Druzy) in host rock

SiO₂ (Silicon Dioxide) as Quartz, with unspecified host rock components (likely silicates and iron oxides)

Bismuth

Bismuth (Bi)

Rutilated Quartz

SiO2 with TiO2 inclusions (Rutile)

Black Tourmaline

Schorl (Na(Fe²⁺)₃Al₆(OH)₄(BO₃)₃Si₆O₁₈)

Quartz (possibly milky quartz or quartz with inclusions)

SiO2 (Silicon Dioxide)

Aquamarine

Aquamarine (Beryl variety); Be3Al2Si6O18

Moonstone

Adularia or Orthoclase (KAlSi3O8) or Albite (NaAlSi3O8), specifically with lamellar exsolution of albite and orthoclase.

Crystal Quartz Beads (likely Clear Quartz)

Quartz (SiO₂)

Azurite-Malachite (often a mixed specimen)

Azurite: Cu3(CO3)2(OH)2; Malachite: Cu2(CO3)(OH)2. The specimen appears to be a natural mixture or intergrowth of these two minerals.

Polished white agate or chalcedony bead

Microcrystalline quartz (SiO₂), likely chalcedony/agate with iron-oxide staining or a brown mineral inclusion

Amazonite

KAlSi3O8 (Potassium Feldspar, variety of Microcline)

Blue Tiger's Eye

Riebeckite (crocidolite variety)

Diamond (Rough)

Diamond (Carbon, C)