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 (Silicon Dioxide (SiO2) with iron impurities) — gemstone

Citrine Quartz

Silicon Dioxide (SiO2) with iron impurities

Spiny Oyster Shell (Spondylus (Calcium Carbonate, CaCO3)) — mineral

Spiny Oyster Shell

Spondylus (Calcium Carbonate, CaCO3)

Faceted yellow-brown gemstone ring, likely citrine (Citrine (iron-bearing quartz, SiO₂); identification from the photo is uncertain) — gemstone

Faceted yellow-brown gemstone ring, likely citrine

Citrine (iron-bearing quartz, SiO₂); identification from the photo is uncertain

Tumbled banded blue agate (Chalcedony (microcrystalline quartz, SiO₂), variety agate) — mineral

Tumbled banded blue agate

Chalcedony (microcrystalline quartz, SiO₂), variety agate

Aura Quartz Geode (Angel Aura Quartz) (Silicon Dioxide (SiO2) bonded with precious metals) — mineral

Aura Quartz Geode (Angel Aura Quartz)

Silicon Dioxide (SiO2) bonded with precious metals

Asphalt Concrete (Bituminous Conglomerate) (Anthropogenic Bituminous Conglomerate) — sedimentary

Asphalt Concrete (Bituminous Conglomerate)

Anthropogenic Bituminous Conglomerate

Peacock Ore (Bornite (Cu5FeS4) with surface tarnish) — mineral

Peacock Ore

Bornite (Cu5FeS4) with surface tarnish

Iridescent chalcopyrite (“peacock ore”) (Chalcopyrite, CuFeS₂, commonly surface-tarnished to bornite-like colors) — mineral

Iridescent chalcopyrite (“peacock ore”)

Chalcopyrite, CuFeS₂, commonly surface-tarnished to bornite-like colors

Quartz (Variety: Citrine or Tumbled Chalcedony) (Silicon Dioxide (SiO2)) — mineral

Quartz (Variety: Citrine or Tumbled Chalcedony)

Silicon Dioxide (SiO2)

Cubic Zirconia (Diamond Simulant) (Zirconium Dioxide (ZrO2)) — gemstone

Cubic Zirconia (Diamond Simulant)

Zirconium Dioxide (ZrO2)

Rough Quartz (Smoky or Citrine variant) (Silicon Dioxide (SiO2)) — mineral

Rough Quartz (Smoky or Citrine variant)

Silicon Dioxide (SiO2)

Heat-Treated Amethyst (Commercial Citrine) (Silicon Dioxide (SiO2) - Macro-crystalline Quartz) — mineral

Heat-Treated Amethyst (Commercial Citrine)

Silicon Dioxide (SiO2) - Macro-crystalline Quartz

Citrine (Crystalline Quartz (SiO2) with iron impurities) — mineral

Citrine

Crystalline Quartz (SiO2) with iron impurities

Titanium Quartz (Aura Quartz) (Silicon Dioxide (SiO2) treated with Titanium) — mineral

Titanium Quartz (Aura Quartz)

Silicon Dioxide (SiO2) treated with Titanium

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

Citrine or Yellow Quartz

Silicon Dioxide (SiO2) with iron impurities

Iron-stained Quartz (with Limonite/Hematite) (Silicon Dioxide (SiO2) with Iron Oxide inclusions (FeO(OH) or Fe2O3)) — Mineral

Iron-stained Quartz (with Limonite/Hematite)

Silicon Dioxide (SiO2) with Iron Oxide inclusions (FeO(OH) or Fe2O3)

Tumbled yellow quartz (likely citrine or iron-stained quartz) (Quartz, SiO₂; yellow color from trace iron or irradiation/heat-related coloration) — mineral

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

Quartz, SiO₂; yellow color from trace iron or irradiation/heat-related coloration

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

Citrine Quartz

Silicon Dioxide (SiO2) with iron impurities

Citrine Quartz (Silicon Dioxide (SiO2)) — mineral

Citrine Quartz

Silicon Dioxide (SiO2)

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

Quartz (Citrine variety)

Silicon Dioxide (SiO2)

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

Citrine Quartz

Silicon Dioxide (SiO2) with iron impurities

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

Citrine (Heat-Treated Amethyst)

Silicon Dioxide (SiO2)

Rhodochrosite (Beads) and Citrine (Pendant) (Rhodochrosite (MnCO3) and Quartz variety Citrine (SiO2)) — mineral

Rhodochrosite (Beads) and Citrine (Pendant)

Rhodochrosite (MnCO3) and Quartz variety Citrine (SiO2)

Citrine (Silicon Dioxide (SiO2)) — mineral

Citrine

Silicon Dioxide (SiO2)

Citrine (Silicon Dioxide (SiO2)) — mineral

Citrine

Silicon Dioxide (SiO2)

Likely rough citrine (yellow quartz) (Quartz, SiO₂; yellow color may result from iron impurities) — mineral

Likely rough citrine (yellow quartz)

Quartz, SiO₂; yellow color may result from iron impurities

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

Citrine

Quartz (Silicon Dioxide - SiO2)

Quartz Crystal (Citrine / Golden Quartz) (Silicon Dioxide (SiO2)) — mineral

Quartz Crystal (Citrine / Golden Quartz)

Silicon Dioxide (SiO2)

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

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

Quartz, silicon dioxide (SiO₂)

Dyed mineral cluster, likely calcite or aragonite (Calcite (CaCO₃) or aragonite (CaCO₃), artificially color-enhanced) — mineral

Dyed mineral cluster, likely calcite or aragonite

Calcite (CaCO₃) or aragonite (CaCO₃), artificially color-enhanced

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

Citrine (Heat-treated Amethyst)

Silicon Dioxide (SiO2) with iron impurities

Blue topaz-style pendant gemstone (Likely blue topaz (Al₂SiO₄(F,OH)₂); the image cannot confirm the stone or whether it is natural or synthetic.) — gemstone

Blue topaz-style pendant gemstone

Likely blue topaz (Al₂SiO₄(F,OH)₂); the image cannot confirm the stone or whether it is natural or synthetic.

Citrine (Silicon Dioxide (SiO2) with ferric iron impurities) — gemstone

Citrine

Silicon Dioxide (SiO2) with ferric iron impurities

Ruby (mounted cabochon) (Corundum, Al₂O₃; red color typically from chromium) — gemstone

Ruby (mounted cabochon)

Corundum, Al₂O₃; red color typically from chromium

Polished multicolored stone bead bracelet (Likely dyed or treated agate/jasper, chiefly microcrystalline quartz (SiO₂)) — mineral

Polished multicolored stone bead bracelet

Likely dyed or treated agate/jasper, chiefly microcrystalline quartz (SiO₂)

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

Quartz (Citrine or Iron-Stained)

Silicon Dioxide (SiO2)

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

Citrine Quartz

Silicon Dioxide (SiO2) with iron impurities

Tumbled yellow-brown quartz (likely citrine or iron-stained quartz) (Quartz, SiO₂; yellow color may result from iron impurities) — mineral

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

Quartz, SiO₂; yellow color may result from iron impurities

Tumbled carnelian (Carnelian, a red-orange variety of chalcedony (microcrystalline quartz, SiO₂)) — mineral

Tumbled carnelian

Carnelian, a red-orange variety of chalcedony (microcrystalline quartz, SiO₂)

Likely citrine (yellow quartz) crystal (Quartz, SiO₂; identification is tentative from the photo) — mineral

Likely citrine (yellow quartz) crystal

Quartz, SiO₂; identification is tentative from the photo

Amethyst cluster (Quartz, silicon dioxide (SiO₂), purple variety) — mineral

Amethyst cluster

Quartz, silicon dioxide (SiO₂), purple variety

Green Quartz (Prasiolite) (Silicon Dioxide (SiO2) with trace impurities) — mineral

Green Quartz (Prasiolite)

Silicon Dioxide (SiO2) with trace impurities