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

Clear Quartz

Silicon Dioxide (SiO2)

Heart-shaped Limestone

Calcium Carbonate (CaCO3)

Amber

Succinite (organic hydrocarbon)

Emerald

Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities

Turquoise cabochon jewelry

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

Amber in Matrix

Succinite (Carbon-based organic polymer)

Amber

Succinite (C10H16O)

Yellow Sapphire

Corundum (Al2O3:Fe)

Amber

Succiniferous fossil resin (C10H16O)

Amber

Fossilized Tree Resin

Seven Chakra Bonded Stone

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

Tumbled chert or flint pebble

Microcrystalline quartz (SiO₂), likely chert; exact variety uncertain from the image

Amber (in Matrix/Shale)

Amber (Fossilized Tree Resin)

Chert (potentially worked flint)

Cryptocrystalline microcrystalline quartz (SiO2)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Chert (Nodule)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

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

Calcium Fluoride (CaF2)

Clear Quartz

Silicon Dioxide (SiO2)

Pink Cubic Zirconia (CZ)

Zirconium Dioxide (ZrO2)

Smoky Quartz

Silicon Dioxide (SiO2)

Clear Quartz (Tumbled)

Silicon Dioxide (SiO2)

Shungite (Noble/Type II)

Non-crystalline carbon (Fullerene-bearing carbonaceous rock)

Pearl-and-gemstone insect brooch

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

Amber

Succinates (Organic Gemstone)

Amber

Succinite (formula varies, primarily C10H16O)

Yellow Quartz (Citrine / Milky Quartz)

Silicon Dioxide (SiO2)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Colorless faceted gemstone, likely cubic zirconia

Cubic zirconia (synthetic zirconium dioxide, ZrO₂); possibly colorless quartz or laboratory diamond

Clear Quartz

Silicon dioxide (SiO2)

Clear Quartz

Silicon Dioxide (SiO2)

River Pebble (Quartz-rich)

Silicon Dioxide (SiO2) with impurities

Quartzite Pebble (or River Agate/Chert)

Silicon Dioxide (SiO2)

Clear Quartz

Silicon Dioxide (SiO2)

Clear Quartz

Silicon Dioxide (SiO2)

Quartz (Yellow / Citrine Quartz Pebble)

Silicon Dioxide (SiO2)

Tufa Rock and Tumbled Gemstones

Calcareous Tufa (Calcium Carbonate, CaCO3)

Amber

Succinite

Hag Stone

Perforated Flint / Chert Node

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.

Clear Quartz

Silicon Dioxide (SiO2)

Amber

Fossilized Tree Resin (Generic formula roughly C10H16O)

Sandstone (Ferruginous)

Arenite (SiO2 with Fe2O3 cement)