Rock Identifier

Category

Mineral (Treated)

Browse mineral (treated) specimens identified by the Rock Identifier community.

Learn about Mineral (Treated) in the encyclopedia

Red Agate

Citrine

Andesine

Andamooka Opal

Glauconite

Hutcheonite

Halite

Sperrylite

Baddeleyite

Anatase

Brookite

Talc

Tiger’s eye (Quartz (SiO₂), pseudomorphic fibrous quartz with crocidolite inclusions) — mineral

Tiger’s eye

Quartz (SiO₂), pseudomorphic fibrous quartz with crocidolite inclusions

Banded Slag Glass (Leland Blue/Frankfort Green style) (Anthropogenic Glass Specimen (Amorphous Silicon Dioxide with impurities)) — mineral

Banded Slag Glass (Leland Blue/Frankfort Green style)

Anthropogenic Glass Specimen (Amorphous Silicon Dioxide with impurities)

Citrine (Silicon dioxide (SiO2)) — mineral

Citrine

Silicon dioxide (SiO2)

Amethyst and Citrine (Ametrine Mix) (Silicon Dioxide (SiO2) with Fe3+ impurities) — mineral

Amethyst and Citrine (Ametrine Mix)

Silicon Dioxide (SiO2) with Fe3+ impurities

Citrine (Yellow Quartz) (Silicon Dioxide (SiO2)) — Mineral

Citrine (Yellow Quartz)

Silicon Dioxide (SiO2)

Orange Calcite (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite

Calcium Carbonate (CaCO3)

Yellow Quartz (Citrine Quartz) (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz (Citrine Quartz)

Silicon Dioxide (SiO2)

Yellow Quartz (Citrine Quartz or Yellow Chalcedony) (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz (Citrine Quartz or Yellow Chalcedony)

Silicon Dioxide (SiO2)

Carnelian Agate (Silicon Dioxide (SiO2) with iron oxide impurities) — mineral

Carnelian Agate

Silicon Dioxide (SiO2) with iron oxide impurities

Rainbow chalcopyrite (“peacock ore”) (Chalcopyrite, CuFeS₂, commonly artificially tarnished or heat-treated) — mineral

Rainbow chalcopyrite (“peacock ore”)

Chalcopyrite, CuFeS₂, commonly artificially tarnished or heat-treated

Pearl strand (Nacreous pearl, primarily aragonite (CaCO₃) with conchiolin protein) — gemstone

Pearl strand

Nacreous pearl, primarily aragonite (CaCO₃) with conchiolin protein

Citrine (Silicon Dioxide (SiO2)) — gemstone

Citrine

Silicon Dioxide (SiO2)

Orange chalcedony (carnelian) (Microcrystalline quartz, SiO₂; orange variety of chalcedony) — gemstone

Orange chalcedony (carnelian)

Microcrystalline quartz, SiO₂; orange variety of chalcedony

Yellow chalcedony (likely lemon/citrine-colored agate) (Microcrystalline quartz, SiO₂ (chalcedony)) — mineral

Yellow chalcedony (likely lemon/citrine-colored agate)

Microcrystalline quartz, SiO₂ (chalcedony)

Tumbled yellow quartz, likely citrine or iron-stained quartz (Quartz (SiO₂), possibly citrine variety) — mineral

Tumbled yellow quartz, likely citrine or iron-stained quartz

Quartz (SiO₂), possibly citrine variety

Citrine Quartz (Silicon Dioxide (SiO₂) with iron impurities) — mineral

Citrine Quartz

Silicon Dioxide (SiO₂) with iron impurities

Yellow Quartz (Citrine Quartz) (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz (Citrine Quartz)

Silicon Dioxide (SiO2)

Yellow Quartz or Citrine Quartz (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz or Citrine Quartz

Silicon Dioxide (SiO2)

Malachite-rich copper ore (Malachite, Cu₂CO₃(OH)₂, likely with chrysocolla and oxidized copper minerals) — mineral

Malachite-rich copper ore

Malachite, Cu₂CO₃(OH)₂, likely with chrysocolla and oxidized copper minerals

Tumbled pale-yellow quartz (likely citrine or iron-stained quartz) (Quartz, silicon dioxide (SiO₂)) — mineral

Tumbled pale-yellow quartz (likely citrine or iron-stained quartz)

Quartz, silicon dioxide (SiO₂)

Unknown metallic sulfide-bearing rock, possibly chalcopyrite or bornite (Tentative: chalcopyrite (CuFeS₂) or bornite (Cu₅FeS₄)) — mineral

Unknown metallic sulfide-bearing rock, possibly chalcopyrite or bornite

Tentative: chalcopyrite (CuFeS₂) or bornite (Cu₅FeS₄)

Citrine (or Yellow Chalcedony / Quartz) (Silicon Dioxide (SiO2)) — mineral

Citrine (or Yellow Chalcedony / Quartz)

Silicon Dioxide (SiO2)

Yellow Quartz (Citrine-colored Quartz) (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz (Citrine-colored Quartz)

Silicon Dioxide (SiO2)

Citrine (Silicon dioxide (SiO2)) — mineral

Citrine

Silicon dioxide (SiO2)

Honey-colored quartz crystal (Quartz (silicon dioxide, SiO₂), likely iron-stained or inclusion-rich citrine) — mineral

Honey-colored quartz crystal

Quartz (silicon dioxide, SiO₂), likely iron-stained or inclusion-rich citrine

Orange Quartz (Citrine Quartz variety) (Silicon Dioxide (SiO2)) — mineral

Orange Quartz (Citrine Quartz variety)

Silicon Dioxide (SiO2)

Bornite (Bornite (Cu5FeS4)) — mineral

Bornite

Bornite (Cu5FeS4)

Polished turquoise cabochon (Turquoise, hydrous copper-aluminum phosphate: CuAl₆(PO₄)₄(OH)₈·4H₂O) — gemstone

Polished turquoise cabochon

Turquoise, hydrous copper-aluminum phosphate: CuAl₆(PO₄)₄(OH)₈·4H₂O

Rough emerald (beryl) specimens (Emerald, green beryl — Be₃Al₂Si₆O₁₈, colored mainly by chromium and/or vanadium) — gemstone

Rough emerald (beryl) specimens

Emerald, green beryl — Be₃Al₂Si₆O₁₈, colored mainly by chromium and/or vanadium

Turquoise bead bracelet (Turquoise, CuAl₆(PO₄)₄(OH)₈·4H₂O; the beads may be stabilized or dyed) — mineral

Turquoise bead bracelet

Turquoise, CuAl₆(PO₄)₄(OH)₈·4H₂O; the beads may be stabilized or dyed

Quartz (likely heat-treated or colored cord) (Silicon Dioxide (SiO2)) — mineral

Quartz (likely heat-treated or colored cord)

Silicon Dioxide (SiO2)

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

Turquoise

Hydrated copper aluminum phosphate, CuAl₆(PO₄)₄(OH)₈·4H₂O

Ametrine (Silicon Dioxide (SiO2) with iron impurities) — mineral

Ametrine

Silicon Dioxide (SiO2) with iron impurities

Turquoise (likely stabilized or composite) (Turquoise, hydrated copper aluminum phosphate — CuAl₆(PO₄)₄(OH)₈·4H₂O) — gemstone

Turquoise (likely stabilized or composite)

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

Citrine Quartz (Silicon dioxide (SiO2)) — mineral

Citrine Quartz

Silicon dioxide (SiO2)

Citrine Quartz (likely heat-treated) (Silicon Dioxide (SiO2)) — mineral

Citrine Quartz (likely heat-treated)

Silicon Dioxide (SiO2)

Citrine (Silicon dioxide (SiO2)) — mineral

Citrine

Silicon dioxide (SiO2)

Carnelian Agate (Silicon Dioxide (SiO2)) — mineral

Carnelian Agate

Silicon Dioxide (SiO2)

Polished pietersite-like brecciated jasper (Silicified chalcedony/jasper aggregate, primarily SiO₂; exact material uncertain from image) — metamorphic

Polished pietersite-like brecciated jasper

Silicified chalcedony/jasper aggregate, primarily SiO₂; exact material uncertain from image

Quartz (Druzy / Goldstone Gemstone Cabochon) (Silicon Dioxide (SiO2)) — gemstone

Quartz (Druzy / Goldstone Gemstone Cabochon)

Silicon Dioxide (SiO2)

Yellow Quartz (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz

Silicon Dioxide (SiO2)

Blue quartz crystal (likely synthetic or coated quartz) (Quartz, silicon dioxide (SiO₂); possible aqua-aura quartz) — mineral

Blue quartz crystal (likely synthetic or coated quartz)

Quartz, silicon dioxide (SiO₂); possible aqua-aura quartz