Dyed Agate
Agate (Silicon dioxide)
Mineral
Category
Mineral With Artificial Coating
Browse mineral with artificial coating specimens identified by the Rock Identifier community.
Learn about Mineral With Artificial Coating in the encyclopedia
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Pet Rock (Quartzite/Sandstone River Rock)
Silicon Dioxide (SiO2) mixture
sedimentary
Tangerine Quartz
Silicon Dioxide with Hematite inclusions (SiO2 + Fe2O3)
mineral
Dyed Agate
SiO2
Mineral
Milky Quartz with Algae/Chlorite
Silicon Dioxide (SiO2)
mineral
Blue Agate Geode Slice
Silicon Dioxide (SiO2) - Chalcedony variety
mineral
Beads (likely glass or man-made material)
N/A (artificial material)
Man-made material, not a natural rock or mineral specimen
Asphalt Concrete
Bituminous Concrete (Anthropic Rock)
sedimentary
Dyed Quartz Geode
Silicon Dioxide (SiO2) with artificial pigment
mineral
Asphalt (Bituminous Rock)
Natural bitumen or Bituminous limestone/sandstone
sedimentary
Quartz Druzy (Geode Fragment)
Silicon Dioxide (SiO2)
mineral
Man-made Metal Pin (Non-geological)
Antimony-Lead Alloy or Zinc/Brass Base with Electroplating
Metal Alloy / Manufactured Artifact
Green Aura Quartz (Titanium treated Kyanite or Quartz)
Silicon Dioxide (SiO2) or Aluminum Silicate (Al2SiO5) with Titanium/Metal Oxide coating
mineral (man-made aura treatment)
Manganese Oxide Crust on Limestone
Manganese Oxides (e.g., Pyrolusite MnO2 or Romanechite) on CaCO3
sedimentary
Asphalt Conglomerate
Artificial Bituminous Conglomerate
sedimentary
Quartz Druze (Crystalline Quartz)
Silicon Dioxide (SiO2)
mineral
Blue Goldstone
Goldstone (artificial glass)
Mineral (man-made glass, not natural)
Purple Agate (Dyed Chalcedony)
SiO2 (Silicon Dioxide) with organic dyes
mineral
Dyed Agate
Silicon Dioxide (SiO2)
mineral
Dyed Quartz Geode
Silicon Dioxide (SiO2) with artificial pigment
mineral
Druzzy Quartz on Matrix
Silicon Dioxide (SiO2)
mineral
Quartz (Druzy)
Silicon Dioxide (SiO2)
mineral
Quartz (Druzy)
Silicon Dioxide (SiO2)
mineral
Dyed Howlite (Turquenite)
Calcium Borosilicate Hydroxide (Ca2B5SiO9(OH)5)
mineral
Dyed Quartz Crystal
Silicon Dioxide (SiO2) with artificial pigment
mineral
Green Quartz (likely Aventurine or Prasiolite)
Silicon Dioxide (SiO2) with inclusions
mineral
Red Tiger's Eye
SiO2 (Silicon Dioxide with iron inclusions)
mineral
Limonite (Ironstone)
Hydrated Iron Oxide (FeO(OH)·nH2O)
mineral
Prasiolite (Green Quartz)
Silicon Dioxide (SiO2) with iron impurities
mineral
Dyed Agate Slice
Silicon Dioxide (SiO2) - Chalcedony variety
mineral
Quartz (Druzy on Matrix)
Silicon Dioxide (SiO2)
mineral
Blue Dyed Agate
Chalcedony (Silicon Dioxide, SiO2)
mineral
Blue Agate (Dyed)
Silicon Dioxide (SiO2)
mineral
Dyed Agate
Silicon Dioxide (SiO2) - variety Chalcedony
mineral
Quartz (Citrine or Iron-Stained)
Silicon Dioxide (SiO2)
mineral
Druzy Quartz on Matrix
Silicon Dioxide (SiO2)
mineral
Drill Core Sample
Cylindrical Rock Core (Specific mineralogy varies by extraction site)
Metamorphic (Likely Gneiss or Schist based on texture)
Desert Varnish on Sandstone
Ferromanganese coating on Quartz Arenite
sedimentary
Quartz (Druzy)
Silicon Dioxide (SiO2)
mineral
Dyed Agate
Silicon Dioxide (SiO2) - Chalcedony variety
sedimentary
Red Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2 with Fe2O3 inclusions)
metamorphic
Quartz Druzy on Geode Fragment
Silicon Dioxide (SiO2)
mineral