Heart-shaped faceted gemstone pendant
Likely yellow quartz (citrine) or synthetic yellow stone, set in metal with small clear accent stones
Category
Browse mineral (treated) specimens identified by the Rock Identifier community.
Heart-shaped faceted gemstone pendant
Likely yellow quartz (citrine) or synthetic yellow stone, set in metal with small clear accent stones
Dyed turquoise-like gemstone beads
Likely turquoise (hydrous copper aluminum phosphate, CuAl₆(PO₄)₄(OH)₈·4H₂O), possibly dyed howlite or magnesite
Turquoise cabochon ring
Turquoise, hydrated copper aluminum phosphate (CuAl₆(PO₄)₄(OH)₈·4H₂O); the stones may be stabilized or treated
Lemon Quartz (or Yellow Calcite)
Silicon Dioxide (SiO2) / Calcium Carbonate (CaCO3)
Opal cabochon
Opal, hydrated amorphous silica (SiO₂·nH₂O), likely common or Ethiopian precious opal
Turquoise
Hydrated copper aluminum phosphate, CuAl₆(PO₄)₄(OH)₈·4H₂O
Polished, carved gemstone (possibly dyed agate or glass-like material)
Unconfirmed from the image; no specific mineral can be identified reliably
Yellow Quartz (Citrine type/Tumbled Quartz)
Silicon Dioxide (SiO2)
Yellow faceted gemstone, likely citrine or yellow sapphire
Uncertain from image; citrine is quartz (SiO₂), while yellow sapphire is corundum (Al₂O₃)
Mixed Agate and Lapis Lazuli Bracelet
Chalcedony (SiO2) and Lapis Lazuli (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2
Dyed Pumice
Vesicular Rhyolite (Artificial Coloration Addition)
Biological Specimen (Domestic Dog)
Canis lupus familiaris
Polished opal-bearing rock (likely boulder opal)
Opal, hydrated amorphous silica (SiO₂·nH₂O), in ironstone or host rock
Turquoise bracelet
Turquoise, CuAl₆(PO₄)₄(OH)₈·4H₂O
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2 with iron inclusions)
Tumbled carnelian
Carnelian, orange-red chalcedony (microcrystalline quartz, SiO₂)
Polished carnelian/chalcedony agate
Microcrystalline quartz (SiO₂), chiefly chalcedony with iron-oxide coloration
Yellow Jade
Jadeite or Nephrite (various silicates)
Likely fossilized coral with polished blue calcite or aragonite specimen
Fossil coral, commonly Scleractinia; blue material likely dyed or treated calcite/aragonite
Turquoise
Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)
Tumbled blue-green stone, likely turquoise or chrysocolla
Turquoise: CuAl₆(PO₄)₄(OH)₈·4H₂O; chrysocolla: hydrated copper silicate
Blue topaz pendant
Topaz (Al₂SiO₄(F,OH)₂), likely treated blue topaz
Green jade bead bracelet
Jadeite (NaAlSi₂O₆) or nephrite (Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂); image alone cannot distinguish them
Faceted purple-blue beads, likely synthetic glass or treated gemstone
Indeterminate; possible synthetic corundum, synthetic spinel, or dyed quartz (SiO₂)
Tumbled carnelian (orange chalcedony)
Carnelian, a microcrystalline variety of quartz; SiO₂, commonly colored by iron oxides
Dragon Egg Agate
Agate (Silicon Dioxide, SiO2)
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
Green quartz bead bracelet
Quartz, silicon dioxide (SiO₂), likely green aventurine or prasiolite; exact identification requires testing
Likely yellow beryl or citrine gemstone in a ring
Provisional: beryl, Be₃Al₂(SiO₃)₆ (heliodor); alternative: quartz, SiO₂ (citrine)
Tumbled yellow-brown quartz, possibly citrine or iron-stained quartz
Quartz (SiO₂), likely iron-bearing or included variety
Yellow Quartz (Polished)
Silicon Dioxide (SiO2) with iron inclusions
Bornite
Cu5FeS4
Turquoise cabochon ring
Turquoise, hydrated copper–aluminum phosphate: CuAl₆(PO₄)₄(OH)₈·4H₂O
Amber
Succinite (Fossilized Resin)
Copper-bearing schist (likely bornite/chalcopyrite ore)
Micaceous schist with sulfide minerals, chiefly bornite (Cu₅FeS₄) and/or chalcopyrite (CuFeS₂)
Likely citrine pendant
Quartz, silicon dioxide (SiO₂), probably heat-treated amethyst or smoky quartz
Faceted yellow gemstone, likely citrine
Quartz (SiO₂); identification is uncertain from the image alone
Black onyx or black spinel ring stone
Likely chalcedony (SiO₂), variety black onyx; possibly synthetic spinel or glass
Tumbled turquoise
Turquoise — hydrated copper aluminum phosphate, CuAl₆(PO₄)₄(OH)₈·4H₂O
Green cabochon gemstone pendant, likely turquoise or dyed green turquoise
Probably turquoise, CuAl₆(PO₄)₄(OH)₈·4H₂O; exact identification requires testing
Lepidolite
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2
Faceted Citrine
Citrine Quartz (Silicon Dioxide, SiO2)