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

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

Citrine Quartz Crystal Cluster

Silicon Dioxide (SiO2) with iron impurities

Citrine or Yellow Sapphire (Quartz (SiO2) or Corundum (Al2O3)) — gemstone

Citrine or Yellow Sapphire

Quartz (SiO2) or Corundum (Al2O3)

Yellow quartz crystal (likely citrine or iron-stained quartz) (Quartz, silicon dioxide (SiO₂)) — mineral

Yellow quartz crystal (likely citrine or iron-stained quartz)

Quartz, silicon dioxide (SiO₂)

Polished tiger’s-eye (Quartz variety, SiO₂, with crocidolite-derived iron inclusions) — mineral

Polished tiger’s-eye

Quartz variety, SiO₂, with crocidolite-derived iron inclusions

Polished banded agate (likely plume or moss agate) (Chalcedony, cryptocrystalline SiO₂, with iron-oxide and other mineral inclusions) — mineral

Polished banded agate (likely plume or moss agate)

Chalcedony, cryptocrystalline SiO₂, with iron-oxide and other mineral inclusions

Citrine (Silicon dioxide (SiO2)) — mineral

Citrine

Silicon dioxide (SiO2)

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

Yellow Quartz (Citrine Quartz)

Silicon Dioxide (SiO2)

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

Yellow Quartz / Citrine Quartz

Silicon Dioxide (SiO2)

Tumbled citrine or iron-stained quartz (Quartz (SiO₂), likely iron-oxide-stained or natural citrine) — mineral

Tumbled citrine or iron-stained quartz

Quartz (SiO₂), likely iron-oxide-stained or natural citrine

Tumbled Yellow Quartz (Golden Quartz / Citrine) (Silicon Dioxide (SiO2)) — mineral

Tumbled Yellow Quartz (Golden Quartz / Citrine)

Silicon Dioxide (SiO2)

Citrine (Iron-stained Quartz) (Silicon Dioxide (SiO2)) — mineral

Citrine (Iron-stained Quartz)

Silicon Dioxide (SiO2)

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

Carnelian Agate

Silicon Dioxide (SiO2) with iron oxide inclusions

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

Yellow Chalcedony (Agate or Citrine Quartz)

Silicon Dioxide (SiO2)

Blue Onyx (Agate) (Cryptocrystalline Quartz (SiO2)) — mineral

Blue Onyx (Agate)

Cryptocrystalline Quartz (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)

Carnelian (Carnelian (Silica, SiO2)) — mineral

Carnelian

Carnelian (Silica, SiO2)

Green Quartz (Prasiolite variant or Aventurine) (Silicon Dioxide (SiO2)) — mineral

Green Quartz (Prasiolite variant or Aventurine)

Silicon Dioxide (SiO2)

Sapphire (Corundum (Al2O3)) — gemstone

Sapphire

Corundum (Al2O3)

Citrine quartz crystal cluster (Quartz, SiO₂; likely iron-colored citrine, possibly heat-treated amethyst) — mineral

Citrine quartz crystal cluster

Quartz, SiO₂; likely iron-colored citrine, possibly heat-treated amethyst

Citrine Geode Fragment (Silicon Dioxide (SiO2) with iron impurities) — mineral

Citrine Geode Fragment

Silicon Dioxide (SiO2) with iron impurities

Heat-Treated Citrine (Amethyst) (Silicon Dioxide (SiO2) with iron impurities) — mineral

Heat-Treated Citrine (Amethyst)

Silicon Dioxide (SiO2) with iron impurities

Blue stone cabochon, likely lapis lazuli or dyed stone (Lapis lazuli: lazurite-rich rock, chiefly (Na,Ca)₈(AlSiO₄)₆(S,SO)₂; exact identification is uncertain from the image) — gemstone

Blue stone cabochon, likely lapis lazuli or dyed stone

Lapis lazuli: lazurite-rich rock, chiefly (Na,Ca)₈(AlSiO₄)₆(S,SO)₂; exact identification is uncertain from the image

Blue quartz (likely tumbled dyed or coated quartz) (Quartz, silicon dioxide (SiO₂)) — mineral

Blue quartz (likely tumbled dyed or coated quartz)

Quartz, silicon dioxide (SiO₂)

Decorative opal-like turtle mosaic (Likely imitation or assembled opal material; exact stones cannot be confirmed visually) — gemstone

Decorative opal-like turtle mosaic

Likely imitation or assembled opal material; exact stones cannot be confirmed visually

Citrine-bearing quartz cluster (Quartz, silicon dioxide (SiO₂), with iron-related yellow coloration) — mineral

Citrine-bearing quartz cluster

Quartz, silicon dioxide (SiO₂), with iron-related yellow coloration

Polished red jasper (Jasper, microcrystalline quartz (SiO₂) colored chiefly by hematite/iron oxides) — mineral

Polished red jasper

Jasper, microcrystalline quartz (SiO₂) colored chiefly by hematite/iron oxides

Blue-green turquoise-like tumbled stone (Turquoise, hydrous copper aluminum phosphate: CuAl₆(PO₄)₄(OH)₈·4H₂O) — mineral

Blue-green turquoise-like tumbled stone

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

Citrine Quartz (Silicon Dioxide (SiO2)) — mineral

Citrine Quartz

Silicon Dioxide (SiO2)

Citrine (Silicon Dioxide (SiO2)) — mineral

Citrine

Silicon Dioxide (SiO2)

Citrine (Heat-Treated Amethyst) (Silicon Dioxide (SiO2)) — mineral

Citrine (Heat-Treated Amethyst)

Silicon Dioxide (SiO2)

Blue Zircon (Zircon (Zirconium Silicate - ZrSiO4)) — gemstone

Blue Zircon

Zircon (Zirconium Silicate - ZrSiO4)

Yellow faceted gemstone, likely citrine or yellow sapphire (Citrine: quartz, SiO₂; yellow sapphire: corundum, Al₂O₃) — gemstone

Yellow faceted gemstone, likely citrine or yellow sapphire

Citrine: quartz, SiO₂; yellow sapphire: corundum, Al₂O₃

Bornite (Peacock Ore) (Bornite (Cu5FeS4)) — mineral

Bornite (Peacock Ore)

Bornite (Cu5FeS4)

Chalcopyrite (Chalcopyrite (CuFeS2)) — mineral

Chalcopyrite

Chalcopyrite (CuFeS2)

Yellow amber beads (Amber (fossilized tree resin; organic mineraloid, not a true mineral)) — gemstone

Yellow amber beads

Amber (fossilized tree resin; organic mineraloid, not a true mineral)

Pink quartz cabochon (likely rose quartz) (Quartz, SiO₂; pink coloration likely from trace elements or microscopic inclusions) — gemstone

Pink quartz cabochon (likely rose quartz)

Quartz, SiO₂; pink coloration likely from trace elements or microscopic inclusions

Tumbled citrine quartz (Citrine, yellow variety of quartz (SiO₂), likely heat-treated amethyst or smoky quartz) — mineral

Tumbled citrine quartz

Citrine, yellow variety of quartz (SiO₂), likely heat-treated amethyst or smoky quartz

Yellow Quartz (Citrine/Yellow Jasper mix) (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz (Citrine/Yellow Jasper mix)

Silicon Dioxide (SiO2)

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

Citrine

Silicon Dioxide (SiO2) with iron impurities

Yellow quartz (likely citrine) (Quartz, SiO₂; citrine is iron-colored quartz) — mineral

Yellow quartz (likely citrine)

Quartz, SiO₂; citrine is iron-colored quartz

Copper-bearing sulfide ore, likely chalcopyrite with iron oxides (Chalcopyrite (CuFeS₂), possibly associated with bornite (Cu₅FeS₄), pyrite, and limonite/goethite) — mineral

Copper-bearing sulfide ore, likely chalcopyrite with iron oxides

Chalcopyrite (CuFeS₂), possibly associated with bornite (Cu₅FeS₄), pyrite, and limonite/goethite