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

Likely citrine or yellow quartz fragment (Quartz, SiO₂; possibly iron-colored citrine) — mineral

Likely citrine or yellow quartz fragment

Quartz, SiO₂; possibly iron-colored citrine

Tumbled citrine quartz (probable) (Quartz, SiO₂; yellow coloration likely from iron impurities or heat treatment) — gemstone

Tumbled citrine quartz (probable)

Quartz, SiO₂; yellow coloration likely from iron impurities or heat treatment

Dyed Howlite (Dyed Red) (Calcium Borosilicate Hydroxide (Ca2B5SiO9(OH)5)) — mineral

Dyed Howlite (Dyed Red)

Calcium Borosilicate Hydroxide (Ca2B5SiO9(OH)5)

Citrine (Silicon Dioxide (SiO2)) — mineral

Citrine

Silicon Dioxide (SiO2)

Mystic Topaz (Aluminum silicate fluoride hydroxide with titanium coating (Al2SiO4(F,OH)2)) — mineral

Mystic Topaz

Aluminum silicate fluoride hydroxide with titanium coating (Al2SiO4(F,OH)2)

Peacock Ore (Chalcopyrite/Bornite) (Bornite (Cu5FeS4) or iridescent treated Chalcopyrite (CuFeS2)) — Mineral

Peacock Ore (Chalcopyrite/Bornite)

Bornite (Cu5FeS4) or iridescent treated Chalcopyrite (CuFeS2)

Orange Calcite (Calcite (Calcium Carbonate, CaCO3)) — mineral

Orange Calcite

Calcite (Calcium Carbonate, CaCO3)

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

Quartz crystal (likely citrine or iron-stained quartz)

Quartz, silicon dioxide (SiO₂)

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

Yellow Quartz (Citrine or Iron-Stained Quartz)

Silicon Dioxide (SiO2)

Yellow Quartz (Citrine or Quartz Crystal with Iron Inclusions) (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz (Citrine or Quartz Crystal with Iron Inclusions)

Silicon Dioxide (SiO2)

Citrine (SiO2 (Silicon Dioxide)) — mineral

Citrine

SiO2 (Silicon Dioxide)

Tiger's Eye (Pseudomorph of Quartz after Crocidolite (SiO2)) — mineral

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2)

Peacock Ore (Bournite/Chalcopyrite) (Bornite (Cu5FeS4) or Acid-Treated Chalcopyrite (CuFeS2)) — mineral

Peacock Ore (Bournite/Chalcopyrite)

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

Blue Sapphire (Faceted) (Corundum (Al2O3)) — gemstone

Blue Sapphire (Faceted)

Corundum (Al2O3)

Citrine Quartz (Silicon Dioxide (SiO2)) — mineral

Citrine Quartz

Silicon Dioxide (SiO2)

Black Onyx (Silicon dioxide / Chalcedony (SiO2)) — mineral

Black Onyx

Silicon dioxide / Chalcedony (SiO2)

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

Citrine (Tumbled Quartz)

Silicon Dioxide (SiO2)

Aura Quartz (Anomalously Coated Quartz) (Silicon Dioxide (SiO2) treated with vaporized metals) — mineral

Aura Quartz (Anomalously Coated Quartz)

Silicon Dioxide (SiO2) treated with vaporized metals

Citrine (Quartz (Silicon dioxide, SiO2)) — gemstone

Citrine

Quartz (Silicon dioxide, SiO2)

Dyed Tumbled Quartz (Silicon Dioxide (SiO2)) — mineral

Dyed Tumbled Quartz

Silicon Dioxide (SiO2)

Blue Topaz (Aluminum silicate fluoride hydroxide (Al2SiO4(F, OH)2)) — mineral

Blue Topaz

Aluminum silicate fluoride hydroxide (Al2SiO4(F, OH)2)

Blue Topaz (facetted in jewelry) (Aluminum silicate fluoride hydroxide (Al2SiO4(F,OH)2)) — mineral

Blue Topaz (facetted in jewelry)

Aluminum silicate fluoride hydroxide (Al2SiO4(F,OH)2)

Citrine (Silicon Dioxide (SiO2)) — mineral

Citrine

Silicon Dioxide (SiO2)

Chalcopyrite (Peacock Ore) (Chalcopyrite (CuFeS2) with Bornite (Cu5FeS4) oxidation) — mineral

Chalcopyrite (Peacock Ore)

Chalcopyrite (CuFeS2) with Bornite (Cu5FeS4) oxidation

Tumbled carnelian (likely) (Cryptocrystalline chalcedony, SiO₂; orange-red variety commonly called carnelian) — gemstone

Tumbled carnelian (likely)

Cryptocrystalline chalcedony, SiO₂; orange-red variety commonly called carnelian

Ruby (Corundum (Aluminum Oxide with Chromium), Al2O3:Cr) — mineral

Ruby

Corundum (Aluminum Oxide with Chromium), Al2O3:Cr

Dyed Tumbled Quartz (Dragon's Vein Agate/Quartz) (Silicon Dioxide (SiO2) with artificial dye) — mineral

Dyed Tumbled Quartz (Dragon's Vein Agate/Quartz)

Silicon Dioxide (SiO2) with artificial dye

Dyed Agate (Silicon dioxide, SiO2) — Mineral (Chalcedony)

Dyed Agate

Silicon dioxide, SiO2

Mineral (Chalcedony)

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

Honey-colored quartz crystal

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

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

Citrine

Citrine (Silicon Dioxide, SiO2)

Blue-gray mineral/rock fragment (Indeterminate; possibly azurite-bearing material, blue chalcedony, or dyed/coated stone) — mineral

Blue-gray mineral/rock fragment

Indeterminate; possibly azurite-bearing material, blue chalcedony, or dyed/coated stone

Blue Topaz (Aluminum silicate fluoride hydroxide (Al2SiO4(F,OH)2)) — gemstone

Blue Topaz

Aluminum silicate fluoride hydroxide (Al2SiO4(F,OH)2)

Tumbled amber-colored chalcedony and quartz (Chalcedony (microcrystalline SiO₂), quartz (SiO₂), possibly carnelian or citrine; one piece may be druzy chalcedony) — mineral

Tumbled amber-colored chalcedony and quartz

Chalcedony (microcrystalline SiO₂), quartz (SiO₂), possibly carnelian or citrine; one piece may be druzy chalcedony

Tumbled quartz-rich stone, possibly citrine or iron-stained quartz (Quartz (SiO₂), likely limonite/goethite inclusions) — mineral

Tumbled quartz-rich stone, possibly citrine or iron-stained quartz

Quartz (SiO₂), likely limonite/goethite inclusions

Yellow tumbled mineral, likely citrine or yellow quartz (Quartz (SiO₂), possibly iron-colored citrine; exact identification requires testing) — mineral

Yellow tumbled mineral, likely citrine or yellow quartz

Quartz (SiO₂), possibly iron-colored citrine; exact identification requires testing

Iron-stained quartz cluster (Quartz (SiO₂), likely with limonite/goethite staining and possible feldspar matrix) — mineral

Iron-stained quartz cluster

Quartz (SiO₂), likely with limonite/goethite staining and possible feldspar matrix

Polished blue banded stone, likely sodalite (Sodalite, Na₈(Al₆Si₆O₂₄)Cl₂; possibly blue calcite or dyed agate) — mineral

Polished blue banded stone, likely sodalite

Sodalite, Na₈(Al₆Si₆O₂₄)Cl₂; possibly blue calcite or dyed agate

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

Citrine Quartz

Silicon Dioxide (SiO2) with iron impurities

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

Citrine

Silicon Dioxide (Quartz variety), SiO2

Orange Calcite (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite

Calcium Carbonate (CaCO3)

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

Yellow Quartz (Citrine or Quartzite Pebble)

Silicon Dioxide (SiO2)

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

Citrine (Yellow Quartz)

Silicon Dioxide (SiO2)