Rough beryl, possibly green beryl or aquamarine
Beryl, Be₃Al₂Si₆O₁₈
Category
Browse man made material (jewelry, metal alloy) specimens identified by the Rock Identifier community.
Rough beryl, possibly green beryl or aquamarine
Beryl, Be₃Al₂Si₆O₁₈
Peridot ring
Gem-quality olivine, typically forsterite–fayalite solid solution ((Mg,Fe)₂SiO₄)
Cullet Glass (sometimes mistaken for Blue Obsidian or Slag)
Amorphous Silicon Dioxide (SiO2) with chemical additives (e.g., Cobalt for blue color)
Blue-green faceted pendant stone
Undetermined; possibly synthetic glass or a blue-green gemstone such as topaz or quartz
Gemstone rings (stones not reliably identifiable)
The pale stone may be quartz or another translucent gem; the red stone may be ruby, garnet, or synthetic corundum. Image detail is insufficient for identification.
Granite with Cupules / Bedrock Mortars
Granite (felsic intrusive plutonic rock)
Blue Goldstone
Aventurine Glass (SiO2 with Cobalt/Copper inclusions)
Pink faceted gemstone, possibly pink sapphire
Uncertain from the image; possibly corundum (Al₂O₃)
Ruby (set in a ring; possibly synthetic or imitation)
Corundum, Al₂O₃; red color is typically caused by chromium
Terracotta (Man-made ceramic brick fragment)
Baked clay / High-iron ceramic (Silicate-based ceramic)
Turquoise cabochon ring
Turquoise, hydrated copper–aluminum phosphate: CuAl₆(PO₄)₄(OH)₈·4H₂O
Turquoise jewelry beads/earrings
Turquoise, hydrated copper–aluminum phosphate: CuAl₆(PO₄)₄(OH)₈·4H₂O; possibly reconstructed or imitation turquoise
Moss Agate
Chalcedony (SiO2) with inclusions of manganese or iron oxides
White jade-like beaded bracelet
Unverified; possibly milky quartz or white jade (nephrite jade or jadeite)
Blue-green cabochon pendant, likely turquoise or composite turquoise
Turquoise: hydrated copper aluminum phosphate, CuAl₆(PO₄)₄(OH)₈·4H₂O; exact identification is uncertain from the blurred image
Blue chalcedony cabochon (likely)
Chalcedony, microcrystalline SiO₂; possibly blue agate or common opal, which cannot be distinguished confidently from the image
Industrial slag (iron/copper smelting slag)
Multiphase vitreous metallurgical slag; commonly iron-silicate glass with metal-oxide and metallic inclusions
Likely iron-rich meteorite or hematite-rich rock
Uncertain; possible iron meteorite (Fe–Ni alloy) or limonite/goethite-bearing hematite
Green cabochon pendant, likely jade
Probably nephrite jade (tremolite–actinolite, Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂); visual identification is uncertain
Pink faceted gemstone ring (stone uncertain)
Possibly tourmaline or glass; image alone cannot establish identity
Olivine
(Mg,Fe)2SiO4
Copper (native copper)
Native copper, Cu
Gemstone ring with dark blue cabochons
Likely blue sapphire (corundum, Al₂O₃); the stones cannot be identified confidently from the image
Cobalt Glass Slug (Man-made Glass)
Amorphous Silica with Cobalt Oxide (SiO2 + CoO)
Raw pale-green beryl (likely aquamarine)
Beryl, Be₃Al₂Si₆O₁₈; blue-green variety is aquamarine
Blue gemstone in a decorative setting (possibly blue spinel or sapphire)
Unidentified blue faceted gemstone; sapphire is corundum (Al₂O₃), while spinel is MgAl₂O₄
Red gemstone ring, possibly synthetic ruby or red glass
Unidentified red stone; ruby is corundum (Al₂O₃), but the image cannot confirm its identity
Engraved purple stone cabochon, possibly amethyst
Unconfirmed; if amethyst, quartz (SiO₂)
Bismuth crystal
Bismuth (Bi), synthetic laboratory-grown crystal
Synthetic Blue Aura Quartz
Silicon Dioxide (SiO2) with Metallic Infusion
Titanium Quartz (Aura Quartz)
Silicon Dioxide (SiO2) treated with Titanium
Faceted yellow-brown gemstone ring
Likely citrine (quartz, SiO₂); the image alone cannot confirm the stone or any treatments.
Red cabochon gemstone ring, likely synthetic ruby or red glass
Possibly corundum (Al₂O₃, chromium-colored); identity cannot be confirmed from the image
Quartzite
Quartzite
Cabochon gemstone ring, likely smoky quartz or tourmaline
Unconfirmed quartz (SiO₂) or brown tourmaline (dravite); visual identification is inconclusive
Dyed green agate pendant
Microcrystalline quartz (chalcedony), SiO₂; likely dyed agate
Diamond
Native Carbon (C)
Carved green jade pendant or ornament
Likely jadeite (NaAlSi₂O₆) or nephrite (Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂); image alone cannot distinguish them
Red-orange sunstone (likely aventurine feldspar) bead bracelet
Feldspar, commonly oligoclase or labradorite with copper inclusions; composition varies by source
Slag (Industrial Glass)
Artificial Vitreous Silicate
Vesicular basalt (scoria-like volcanic rock)
Vesicular basalt; predominantly plagioclase, pyroxene, and volcanic glass, with possible iron oxides
Iron Meteorite
Meteorite (primarily Fe-Ni alloy with kamacite and taenite)