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

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

Quartz (specifically Citrine or Yellow Quartz)

Silicon Dioxide (SiO2)

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

Quartz (Yellow/Citrine variety)

Crystalline Silicon Dioxide (SiO2)

Chalcedony (Quartz Pebbles) (Silicon Dioxide (SiO2)) — mineral

Chalcedony (Quartz Pebbles)

Silicon Dioxide (SiO2)

Dyed, polished stone beads (likely assorted agate or jasper) (Microcrystalline quartz, SiO₂ (chalcedony; exact stones cannot be determined from the image)) — mineral

Dyed, polished stone beads (likely assorted agate or jasper)

Microcrystalline quartz, SiO₂ (chalcedony; exact stones cannot be determined from the image)

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

Citrine Quartz

Silicon Dioxide (SiO2) with ferric iron impurities

Carved orange coral (likely bamboo coral) (Calcareous coral, principally aragonite (CaCO₃); possibly dyed bamboo coral, Isididae) — gemstone

Carved orange coral (likely bamboo coral)

Calcareous coral, principally aragonite (CaCO₃); possibly dyed bamboo coral, Isididae

Blue Sapphire (likely costume glass imitation) (Corundum (Al2O3) with iron/titanium impurities) — mineral

Blue Sapphire (likely costume glass imitation)

Corundum (Al2O3) with iron/titanium impurities

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

Rough Citrine Quartz

Silicon Dioxide (SiO2) with iron impurities

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

Yellow faceted gemstone, likely citrine or yellow sapphire

Uncertain; probable quartz (SiO₂) or corundum (Al₂O₃)

Blue Topaz (specifically London Blue or Swiss Blue based on color saturation) (Al2SiO4(F,OH)2 (Aluminum Silicate Fluoride Hydroxide)) — mineral

Blue Topaz (specifically London Blue or Swiss Blue based on color saturation)

Al2SiO4(F,OH)2 (Aluminum Silicate Fluoride Hydroxide)

Turquoise (CuAl6(PO4)4(OH)8·4H2O) — mineral

Turquoise

CuAl6(PO4)4(OH)8·4H2O

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

Citrine Quartz Sphere

Silicon Dioxide (SiO2)

Aura Turquoise or Treated Turquoise Beads (Hydrated copper and aluminum phosphate (CuAl6(PO4)4(OH)8·4H2O) with metallic coating) — gemstone

Aura Turquoise or Treated Turquoise Beads

Hydrated copper and aluminum phosphate (CuAl6(PO4)4(OH)8·4H2O) with metallic coating

Citrine (SiO2 (Silicon Dioxide)) — mineral

Citrine

SiO2 (Silicon Dioxide)

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

Citrine Quartz

Silicon Dioxide (SiO2) with iron impurities

Citrine (Citrine (Silicon Dioxide, SiO2)) — mineral

Citrine

Citrine (Silicon Dioxide, SiO2)

Citrine quartz cluster (Quartz, silicon dioxide (SiO₂), colored by trace iron impurities) — mineral

Citrine quartz cluster

Quartz, silicon dioxide (SiO₂), colored by trace iron impurities

Howlite and Purple Amethyst Druzy (Calcium Borosilicate Hydroxide (Howlite) and Silicon Dioxide (Quartz/Amethyst)) — mineral

Howlite and Purple Amethyst Druzy

Calcium Borosilicate Hydroxide (Howlite) and Silicon Dioxide (Quartz/Amethyst)

Citrine Geode (Citrine (Silicon Dioxide, SiO2)) — mineral

Citrine Geode

Citrine (Silicon Dioxide, SiO2)

Amethyst beads (Amethyst, purple quartz (SiO₂)) — gemstone

Amethyst beads

Amethyst, purple quartz (SiO₂)

Quartz (Citrine or Iron-Stained) (Silicon Dioxide (SiO2)) — mineral

Quartz (Citrine or Iron-Stained)

Silicon Dioxide (SiO2)

Aura Amethyst (Dyed/Coated) (Titanium-treated Silicon Dioxide (SiO2)) — mineral

Aura Amethyst (Dyed/Coated)

Titanium-treated Silicon Dioxide (SiO2)

Peacock Ore (Bornite or Iridescent Chalcopyrite) (Bornite (Cu5FeS4) or Acid-treated Chalcopyrite (CuFeS2)) — mineral

Peacock Ore (Bornite or Iridescent Chalcopyrite)

Bornite (Cu5FeS4) or Acid-treated Chalcopyrite (CuFeS2)

Peacock Ore (Bornite (Cu5FeS4) or Chalcopyrite treated with acid) — mineral

Peacock Ore

Bornite (Cu5FeS4) or Chalcopyrite treated with acid

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

Prasiolite

Silicon Dioxide (SiO2) with iron impurities

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

Yellow Quartz (Citrine Quartz)

Silicon Dioxide (SiO2)

Turquoise-bead jewelry (Turquoise, CuAl₆(PO₄)₄(OH)₈·4H₂O; the beads may be natural turquoise or a stabilized/imitation material) — gemstone

Turquoise-bead jewelry

Turquoise, CuAl₆(PO₄)₄(OH)₈·4H₂O; the beads may be natural turquoise or a stabilized/imitation material

Citrine Quartz (Silicon Dioxide (SiO2)) — mineral

Citrine Quartz

Silicon Dioxide (SiO2)

Porphyritic Basalt (likely artificially dyed or altered) (Basalt with plagioclase phenocrysts (likely treated)) — igneous

Porphyritic Basalt (likely artificially dyed or altered)

Basalt with plagioclase phenocrysts (likely treated)

Pale pink chalcedony bangle (Chalcedony (microcrystalline quartz, SiO₂), likely pink chalcedony or dyed/treated material) — gemstone

Pale pink chalcedony bangle

Chalcedony (microcrystalline quartz, SiO₂), likely pink chalcedony or dyed/treated material

Chalcopyrite (Copper Iron Sulfide (CuFeS2)) — mineral

Chalcopyrite

Copper Iron Sulfide (CuFeS2)

Peacock ore (iridescent chalcopyrite), likely heat-treated (Chalcopyrite, CuFeS₂; commonly sold as artificially oxidized “peacock ore”) — mineral

Peacock ore (iridescent chalcopyrite), likely heat-treated

Chalcopyrite, CuFeS₂; commonly sold as artificially oxidized “peacock ore”

Citrine Quartz (Silicon Dioxide (SiO2)) — mineral

Citrine Quartz

Silicon Dioxide (SiO2)

Citrine (Silicon Dioxide (SiO2)) — mineral

Citrine

Silicon Dioxide (SiO2)

Purple cabochon gemstone, likely charoite (Charoite, a complex potassium-calcium silicate mineral; identification from the image is uncertain) — gemstone

Purple cabochon gemstone, likely charoite

Charoite, a complex potassium-calcium silicate mineral; identification from the image is uncertain

Yellow quartz, possibly citrine (Quartz (SiO₂), yellow variety likely citrine; may also be iron-stained quartz) — mineral

Yellow quartz, possibly citrine

Quartz (SiO₂), yellow variety likely citrine; may also be iron-stained quartz

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

Rough Citrine Quartz

Citrine (Silicon Dioxide, SiO2 with iron impurities)

Green Quartz (Silicon Dioxide (SiO2)) — mineral

Green Quartz

Silicon Dioxide (SiO2)

Citrine (SiO2 (Silicon Dioxide)) — mineral

Citrine

SiO2 (Silicon Dioxide)

Peacock Ore (Bornite or Chalcopyrite) (Bornite (Cu5FeS4) or Acid-Washed Chalcopyrite (CuFeS2)) — mineral

Peacock Ore (Bornite or Chalcopyrite)

Bornite (Cu5FeS4) or Acid-Washed Chalcopyrite (CuFeS2)

Heated Citrine (Heat-Treated Amethyst) (Silicon Dioxide (SiO2), quartz variety) — mineral

Heated Citrine (Heat-Treated Amethyst)

Silicon Dioxide (SiO2), quartz variety

Citrine (Silicon dioxide (SiO2)) — mineral

Citrine

Silicon dioxide (SiO2)