Pink tourmaline (rubellite)
Elbaite tourmaline, lithium sodium aluminum borosilicate: Na(Li1.5Al1.5)Al6(BO3)3Si6O18(OH)4
Category
Browse mineraloid like synthetic material specimens identified by the Rock Identifier community.
Pink tourmaline (rubellite)
Elbaite tourmaline, lithium sodium aluminum borosilicate: Na(Li1.5Al1.5)Al6(BO3)3Si6O18(OH)4
Iridescent coated quartz (likely synthetic/display gemstone)
Quartz, silicon dioxide (SiO₂), likely faceted and surface-coated; exact material cannot be confirmed visually
Obsidian
Volcanic glass (Amorphous silicon dioxide)
Limonite (Yellow Ochre)
Limonite (an amorphous mixture of hydrated iron oxides, primarily FeO(OH)·nH2O)
Beach Pebble Quartzite / Chalcedony Pebble
Silicon Dioxide (SiO2)
Faceted Clear Gemstone (Likely Quartz or Cubic Zirconia)
Silicon Dioxide (SiO2) or Zirconium Dioxide (ZrO2)
White seed-bead gemstone strand, likely freshwater pearl or shell pearl
Pearl: nacreous calcium carbonate, chiefly aragonite (CaCO₃) in conchiolin; identification uncertain from image
Green cabochon gemstone, possibly peridot
Uncertain from the photo; possible gem-quality olivine, (Mg,Fe)₂SiO₄
Obsidian
Obsidian (principally SiO2 with MgO and Fe3O4)
Ferruginous Slag (Iron Smelting Byproduct)
Fused Silicate Scoria (Amorphous mixture of FeO, SiO2, and CaO)
Blue Goldstone
Aventurine Glass (SiO2 with Co and metallic inclusions)
Black Obsidian
Volcanic glass
Fulgurite
Fulgurite (Lechatelierite)
Obsidian
Volcanic glass
Black spinel bead bracelet
Spinel (magnesium aluminate), MgAl₂O₄
Moonstone cabochon (probable)
Adularescent feldspar, usually orthoclase–albite intergrowth (KAlSi3O8–NaAlSi3O8)
Cubic Zirconia (Simulated Diamond)
Cubic Zirconia (ZrO2)
Blue Sapphire
Corundum (Al2O3)
Green cabochon gemstone pendant, likely turquoise or dyed green turquoise
Probably turquoise, CuAl₆(PO₄)₄(OH)₈·4H₂O; exact identification requires testing
Faceted Quartz or Cubic Zirconia
SiO2 (Quartz) or ZrO2 (Cubic Zirconia)
Synthetic Blue Aura Quartz
Silicon Dioxide (SiO2) with Metallic Infusion
Diamond
Diamond (C)
Fluorite
Calcium Fluoride (CaF2)
Likely amethyst cabochon ring
Quartz, SiO₂; purple coloration from trace iron and irradiation
Strawberry Quartz and Rose Quartz
Silicon Dioxide (SiO2) with inclusions
Pink quartz (likely rose quartz)
Quartz, silicon dioxide (SiO₂), likely rose quartz; possibly lab-created or treated
Tumbled amber
Amber (fossilized plant resin; predominantly polymerized diterpenoid resin)
Blue Sapphire
Corundum (Al2O3) with traces of Iron and Titanium
Goldstone
N/A (Synthetic Glass with Copper Inclusions)
Red corundum gemstone (likely synthetic ruby)
Ruby: corundum, aluminum oxide (Al₂O₃), chromium-colored; likely lab-grown material
Mood Ring Stone
Liquid crystal thermotropic polymer
Ruby
Corundum (Al2O3 with Chromium traces)
White Opal (Common)
Hydrated Silica (SiO2·nH2O)
Faceted Clear Quartz or Diamond Simulant
Silicon Dioxide (SiO2) if Quartz or Cubic Zirconia (ZrO2) if Synthetic
Red faceted gemstone, likely synthetic ruby
Corundum (Al₂O₃); ruby when red, possibly laboratory-grown
Opalite
Synthetic glass (SiO2 + impurities)
Red gemstone, likely ruby
Corundum (Al₂O₃), colored red by chromium
Amethyst ring
Amethyst, purple quartz (SiO₂), likely set with diamond or other accent stones
Orange Sapphire
Corundum (Al2O3)
Diamond
Carbon (C)
Gemstone ring (stones not identifiable from image)
Unknown; the ring appears to contain two yellow stones and one colorless stone, possibly faceted gemstones or simulants
Jewelry Chain with Blue and Clear Gemstones (Likely Cubic Zirconia)
Cubic Zirconia (ZrO₂), Silver or White Gold/Platinum Alloy