Anthropogenic Sedimentary (Man Made)

Tree Agate

Chalcedony (SiO2)

Amber

Succinite (Carbon-based organic compound; approximate formula C10H16O)

Diamond (Cut Gemstone)

Natural Carbon (C)

Diamond (Faceted)

Carbon (C)

Diamond

Diamond (pure Carbon, C)

Granite

Phaneritic Plutonic Felsic Rock

Granite

Phaneritic Igneous Rock (primarily Quartz, Feldspar, and Mica)

Turquoise bead bracelet

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

Red Swirl Beads (Likely Resin or Glass, simulating Red Jasper or Agate)

N/A (for the beads as pictured); Red Jasper: SiO2 (Chert variety); Red Agate: SiO2 (Chalcedony variety)

Chert (Jasper Variant likely)

Silicon Dioxide (SiO2)

Blue opalite (often sold as synthetic opal)

Opalite glass; amorphous hydrated silica if natural opal (SiO₂·nH₂O)

Quartzite Pebble

Quartzite (SiO2)

Slate

Metamorphic pelitic rock

Angel Aura Quartz (Treated Clear Quartz)

Silicon Dioxide (SiO2) coated with Vaporized Silver and Platinum

Desert Rose (Barite Rose / Gypsum Rose)

Barium Sulfate (BaSO4) or Hydrous Calcium Sulfate (CaSO4%22H2O)

Carved quartz (likely rose quartz and green aventurine/quartz)

Quartz, silicon dioxide (SiO₂); green material may be aventurine quartz or serpentine

Diamond (or Diamond Simulant)

Carbon (C)

Polished serpentine pendulum

Serpentine-group minerals, chiefly antigorite/lizardite; approximate formula Mg₃Si₂O₅(OH)₄

Granodiorite with Quartz Veining

Granodiorite (containing Plagioclase Feldspar, Quartz, and Biotite/Hornblende) with Quartz (SiO2) veins

Tektite

Impactite (Natural Silicate Glass)

Quartzite

Quartzite (SiO2)

Pink Marble

Recrystallized Limestone (Calcium Carbonate, CaCO3)

Native Silver

Silver (Ag)

Carnelian

Chalcedony (cryptocrystalline quartz), SiO2

Pearl (with Peridot)

Calcium carbonate (CaCO3) + Conchiolin; Peridot: Magnesium iron silicate (Mg, Fe)2SiO4

Quartzite

Quartzite (SiO2)

Common Marble

Calcium Carbonate (CaCO3)

Blue Quartz (Aventurine)

Silicon Dioxide (SiO2) with fibrous inclusions (commonly Dumortierite)

Turquoise

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

Diamond

Carbon (C)

Polished black stone egg, probably black obsidian

Obsidian, a natural volcanic glass; composition primarily silica-rich glass (approximately SiO₂), with variable iron and other trace elements

Marble

Recrystallized Calcite (CaCO3)

Rough Diamond

Diamond (Pure Carbon: C)

Banded agate pendant (likely carnelian or brown-and-white chalcedony agate)

Agate, a banded variety of chalcedony; microcrystalline quartz, SiO₂, with iron-oxide coloration

White Marble

Metamorphic Limestone (CaCO3)

Diamond

Carbon (C)

Pearl-embellished decorative cross

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

Goldstone

Avventurina (Cu + SiO2 glass)

Amethyst

SiO2 (Silicon Dioxide)

White Marble

Recrystallized Calcite (CaCO3)

Pearl (Biogenic Mineraloid)

Calcium carbonate (Aragonite) and Conchiolin, CaCO3

Chalcanthite (Likely Synthetic/Lab-Grown)

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