Organic (If Resin) Or Synthetic (If Glass); Simulating Sedimentary Or Metamorphic (For Natural Stones)

Aquamarine in Onyx / Blue Topaz Pendant

Beryl (Be₃Al₂Si₆O₁₈) or Topaz (Al₂SiO₄(F,OH)₂)

Pearl-and-gemstone insect brooch

Pearl: nacre (aragonite, CaCO₃); colored stones are likely synthetic or natural corundum/spinel/glass, not determinable from the image

Hematite cameo or hematine imitation

Hematite (Fe₂O₃); possibly synthetic hematine or black glass

Turquoise cabochon jewelry

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

Smoky Quartz

Silicon Dioxide (SiO2)

White Sapphire

Corundum (Al2O3)

Red jasper pendant

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

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

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

Green Fluorite (likely synthetic or heat-treated for jewelry)

Calcium Fluoride (CaF2)

Pink faceted gemstone, likely synthetic or treated quartz

Quartz, silicon dioxide (SiO₂); exact identity cannot be confirmed from the image

Raw ruby (corundum)

Ruby variety of corundum, aluminum oxide (Al₂O₃), colored chiefly by chromium

Clear Quartz

Silicon Dioxide (SiO2)

Clear Quartz

Silicon Dioxide (SiO2)

Champagne topaz (likely)

Topaz, Al₂SiO₄(F,OH)₂

Amber

Succinite (formula varies, primarily C10H16O)

Clear Quartz

Silicon dioxide (SiO2)

Blue Sapphire

Corundum (Al2O3)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Likely blue glass or synthetic gemstone jewelry

Uncertain; possibly synthetic spinel, cubic zirconia, or blue glass

Turquoise

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

Pink tourmaline (rubellite)

Elbaite tourmaline, lithium sodium aluminum borosilicate: Na(Li1.5Al1.5)Al6(BO3)3Si6O18(OH)4

Yellow Quartz (Citrine / Milky Quartz)

Silicon Dioxide (SiO2)

Smoky Quartz

Silicon Dioxide (SiO2)

Mixed tumbled river pebbles and beach stones

Polymictic alluvial gravel; components include quartz, chert, jasper, sandstone, and altered volcanic rocks

Clear Quartz

Silicon Dioxide (SiO2)

White quartz bead strand

Quartz, silicon dioxide (SiO₂), likely milky or translucent quartz; beads are polished and drilled

Emerald (green gemstone in a jewelry setting)

Beryl, Be₃Al₂(SiO₃)₆; green color commonly from chromium and/or vanadium

Clear Quartz

Silicon Dioxide (SiO2)

Faceted Diamond or Cubic Zirconia

Carbon (C) for Diamond; Zirconium dioxide (ZrO2) for CZ

Amber

Succinite (Fossilized Tree Resin, C10H16O)

Red faceted gemstone ring

Likely synthetic ruby or red spinel; exact identification requires testing

Seven Chakra Bonded Stone

Bonded composite of Red Jasper, Carnelian, Tiger's Eye, Aventurine, Lapis Lazuli, Amethyst, and Clear Quartz

Banded Chert

Silicon Dioxide (SiO2) with impurities

Quartz (Yellow / Citrine Quartz Pebble)

Silicon Dioxide (SiO2)

Chert (Flint)

Silicon Dioxide (SiO2)

River Pebble (Quartz-rich)

Silicon Dioxide (SiO2) with impurities

Amber

Succinite (fossilized resin); C10H16O

Clear Quartz

Silicon dioxide (SiO2)

Amber

Succinite

Yellow Sapphire

Corundum (Al2O3:Fe)

Quartzite Pebble (or River Agate/Chert)

Silicon Dioxide (SiO2)

Sandstone (Ferruginous)

Arenite (SiO2 with Fe2O3 cement)