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

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

Yellow Quartz (Citrine or Iron-Stained Quartz)

Silicon Dioxide (SiO2)

Aura Quartz (Pink/Magenta Aura Quartz) (Silicon Dioxide (SiO2) treated with vapor-deposited precious metals) — mineral

Aura Quartz (Pink/Magenta Aura Quartz)

Silicon Dioxide (SiO2) treated with vapor-deposited precious metals

Citrine (Silicon Dioxide (SiO2)) — Mineral

Citrine

Silicon Dioxide (SiO2)

Aura Quartz (specifically Titanium Aura Quartz) (Titanium-coated Silicon Dioxide (SiO2 + Ti Coating)) — mineral

Aura Quartz (specifically Titanium Aura Quartz)

Titanium-coated Silicon Dioxide (SiO2 + Ti Coating)

Black Onyx (Cryptocrystalline Chalcedony (SiO2)) — mineral

Black Onyx

Cryptocrystalline Chalcedony (SiO2)

Citrine Quartz (Silicon Dioxide (SiO2)) — mineral

Citrine Quartz

Silicon Dioxide (SiO2)

Citrine Quartz (Macrocrystalline Quartz (SiO2)) — mineral

Citrine Quartz

Macrocrystalline Quartz (SiO2)

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

Citrine or Yellow Quartz Pebble

Silicon Dioxide (SiO2)

Raw citrine quartz point (Quartz, SiO₂; yellow coloration likely from iron impurities or heat treatment) — mineral

Raw citrine quartz point

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

Dyed agate slice (Microcrystalline quartz (SiO₂), typically banded chalcedony) — mineral

Dyed agate slice

Microcrystalline quartz (SiO₂), typically banded chalcedony

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

Yellow Citrine Quartz

Silicon Dioxide (SiO₂)

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

Yellow Quartz (Citrine or Yellow Jasper)

Silicon Dioxide (SiO2) with iron impurities

Citrine (Silicon Dioxide (SiO2)) — mineral

Citrine

Silicon Dioxide (SiO2)

Blue mineral specimen, likely bornite (“peacock ore”) (Bornite, Cu5FeS4, possibly iridescent chalcopyrite (CuFeS2)) — mineral

Blue mineral specimen, likely bornite (“peacock ore”)

Bornite, Cu5FeS4, possibly iridescent chalcopyrite (CuFeS2)

Likely chalcopyrite-bearing sulfide ore (Chalcopyrite (CuFeS₂), possibly with pyrite and secondary copper minerals) — mineral

Likely chalcopyrite-bearing sulfide ore

Chalcopyrite (CuFeS₂), possibly with pyrite and secondary copper minerals

Citrine (Silicon Dioxide (SiO2)) — mineral

Citrine

Silicon Dioxide (SiO2)

Citrine Quartz (Silicon Dioxide (SiO2)) — mineral

Citrine Quartz

Silicon Dioxide (SiO2)

Citrine (Quartz (SiO2) - specifically, a variety of macrocrystalline quartz) — mineral

Citrine

Quartz (SiO2) - specifically, a variety of macrocrystalline quartz

Polished moss agate pendant (Moss agate, a chalcedony variety of microcrystalline quartz (SiO₂), with green chlorite/actinolite inclusions) — mineral

Polished moss agate pendant

Moss agate, a chalcedony variety of microcrystalline quartz (SiO₂), with green chlorite/actinolite inclusions

Polished agate geode slice (Microcrystalline quartz (chalcedony), SiO₂) — mineral

Polished agate geode slice

Microcrystalline quartz (chalcedony), SiO₂

Rough quartz crystals, likely citrine-bearing quartz (Quartz (SiO₂), with iron-related yellow-brown coloration) — mineral

Rough quartz crystals, likely citrine-bearing quartz

Quartz (SiO₂), with iron-related yellow-brown coloration

Citrine Quartz (Silicon Dioxide (SiO2)) — mineral

Citrine Quartz

Silicon Dioxide (SiO2)

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

Peacock Ore

Bornite (Cu5FeS4) or Chalcopyrite treated with acid

Black Onyx (Onyx (Silicon Dioxide, SiO2)) — mineral

Black Onyx

Onyx (Silicon Dioxide, SiO2)

Black Onyx (Silicon Dioxide (SiO2) with parallel banding) — mineral

Black Onyx

Silicon Dioxide (SiO2) with parallel banding

Citrine (Heat-treated) (Silicon Dioxide (SiO2)) — mineral

Citrine (Heat-treated)

Silicon Dioxide (SiO2)

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

Citrine (Heat-Treated)

Silicon Dioxide (SiO2)

Heat-Treated Citrine (Quartz (Silicon Dioxide, SiO2)) — mineral

Heat-Treated Citrine

Quartz (Silicon Dioxide, SiO2)

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

Citrine (likely Heat-Treated Amethyst)

Silicon Dioxide (SiO2)

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

Citrine Quartz

Silicon Dioxide (SiO2) with iron impurities

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

Orange Quartz (Citrine Quartz)

Silicon Dioxide (SiO2) with iron impurities

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

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

Quartz, SiO₂; yellow color commonly from iron impurities or irradiation

Orange mineral fragment, possibly citrine or iron-stained quartz (Quartz (SiO₂), tentatively iron-included quartz/citrine) — mineral

Orange mineral fragment, possibly citrine or iron-stained quartz

Quartz (SiO₂), tentatively iron-included quartz/citrine

Copper-bearing quartz/rock fragment with attached mica (Chalcopyrite-bearing quartz or altered igneous rock; attached flake likely muscovite or biotite mica) — mineral

Copper-bearing quartz/rock fragment with attached mica

Chalcopyrite-bearing quartz or altered igneous rock; attached flake likely muscovite or biotite mica

Citrine (Silicon Dioxide (SiO2) with Fe3+ impurities) — mineral

Citrine

Silicon Dioxide (SiO2) with Fe3+ impurities

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

Green Quartz (Prasiolite)

Crystalline Silicon Dioxide (SiO2) with iron impurities

Yellow Quartz (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz

Silicon Dioxide (SiO2)

Amethyst-bearing quartz (Quartz, silicon dioxide (SiO₂), purple variety amethyst) — mineral

Amethyst-bearing quartz

Quartz, silicon dioxide (SiO₂), purple variety amethyst

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

Yellow Quartz (Citrine or Iron-Stained Quartz)

Silicon Dioxide (SiO2)

Onyx (Black) and Mother of Pearl Inlay (Silicon Dioxide (SiO2) for Onyx; Aragonite (CaCO3) for Mother of Pearl) — mineral

Onyx (Black) and Mother of Pearl Inlay

Silicon Dioxide (SiO2) for Onyx; Aragonite (CaCO3) for Mother of Pearl

Blue Topaz (Topaz [Al2SiO4(F,OH)2]) — mineral

Blue Topaz

Topaz [Al2SiO4(F,OH)2]

Tumbled orange chalcedony (Chalcedony (microcrystalline quartz, SiO₂), likely orange carnelian) — mineral

Tumbled orange chalcedony

Chalcedony (microcrystalline quartz, SiO₂), likely orange carnelian