Dyed and Metallic Coated Agate Geode
Silicon Dioxide (SiO2) with titanium/gold vapor deposition coating
sedimentary (primary) with artificial modification
Category
Sedimentary (Artificial)
Browse sedimentary (artificial) specimens identified by the Rock Identifier community.
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Dyed Tourmaline / Rubellite
Complex cyclosilicate, often Schorl or Elbaite base with artificial dye
mineral
Dyed Chalcedony (Agate)
Silicon Dioxide (SiO2) with artificial pigment
mineral
Dalmatian Jasper (Dyed Blue)
Peralkaline Rock with Arfvedsonite and Blue Dye
igneous
Likely weathered limestone or calcareous concretion
Calcite-rich carbonate rock; chiefly calcium carbonate (CaCO₃)
sedimentary
Dyed Chalcedony (Agate)
Silicon Dioxide (SiO2) with artificial pigment
mineral
Dyed Quartz Geode
Dyed crystalline quartz (Silicon Dioxide, SiO2)
mineral
Dalmatian Stone
Peralkaline igneous rock containing quartz, feldspar, and arfvedsonite
igneous
Chakra Stone (Composite / Man-made Bonded Gemstones)
Composite of Quartz, Lapis Lazuli, Aventurine, Tiger's Eye, and Jasper (SiO2, (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, etc.)
Combined Minerals / Metaphysical stones
Blue-dyed Quartz Druzy
Silicon Dioxide (SiO2) with artificial pigment
mineral
Agate (Dyed) or composite stone
SiO2
mineral
Conglomeratic gravel / polymictic breccia
Polymictic rudite, likely anthropogenic or beach/stream gravel; composition varies
sedimentary
Rhinestone
Artificial Glass/Crystal
gemstone
Slag (Industrial Glass)
Artificial Vitreous Silicate
mineraloid (anthropogenic)
Dyed howlite (turquoise imitation)
Howlite, Ca₂B₅SiO₉(OH)₅; commonly blue-dyed
mineral
Painted Garden Rock (likely Granite or Limestone base)
Silicon Dioxide (SiO2) / Calcium Carbonate (CaCO3) based substrate with Acrylic/Enamel pigments
igneous or sedimentary (anthropogenic modification)
Dyed Agate
Silicon Dioxide (Chalcedony with artificial colorant), SiO2
gemstone
Painted Sandstone
Sandstone (clastic sedimentary rock) with acrylic/artistic coating
sedimentary
Painted Rock / Geode Specimen
Silicon Dioxide with artificial pigment coating
mineral
Dyed Agate
Chalcedony (SiO2)
gemstone
Red Agate
Silicon dioxide (SiO2)
gemstone
Blue Agate (likely Dyed)
Silicon Dioxide (SiO2) - Chalcedony variety
mineral
Aura Quartz
Silicon Dioxide (SiO2) treated with metal vapor
gemstone
Green Onyx
Chalcedony (SiO2)
gemstone
Dyed Agate
SiO2
Mineral
Not a rock, mineral, or geological specimen
N/A
Dyed pink howlite (tumbled stone)
Howlite, Ca₂B₅SiO₉(OH)₅; likely dyed to imitate pink turquoise or rhodonite
mineral
Dyed Agate / Painted Stone
Silicon Dioxide (SiO2) with artificial pigment
sedimentary (base), then artificial
Banded Agate (Dyed / Polished)
Microcrystalline Quartz (SiO2)
mineral
Dyed Blue Agate
Silicon Dioxide (SiO2)
Mineral
Titanium-Coated Hematite (Aura Hematite)
Titanium-bonded Hematite (Fe2O3 with a Ti coating)
mineral
Dyed Blue Agate
Silicon Dioxide (Chalcedony with artificial dye, SiO2)
gemstone
Dyed Agate
Silicon dioxide (SiO2) with artificial colorant
gemstone
Dyed Quartz
Silicon Dioxide (SiO2)
mineral
Rainbow Hematite / Magnetic Hematite
Iron oxide (Fe2O3) - often synthetic/coated for beads
mineral
Tumbled chert or flint pebble
Microcrystalline quartz (SiO₂), likely chert/flint
sedimentary
Dyed Quartz Geode
Silicon Dioxide (SiO2) with artificial purple dye
mineral
Howlite
Calcium Borosilicate Hydroxide (Ca2B5SiO9(OH)5)
mineral
Mixed rock and mineral collection
Multiple specimens; visible pieces may include quartz, calcite, agate/chalcedony, jasper, and dyed or coated materials
mineral
Tumbled Gemstones
Various silicate and oxide minerals
gemstone
Asphalt (Bituminous Rock)
Natural bitumen or Bituminous limestone/sandstone
sedimentary
Asphalt concrete
Anthropogenic conglomerate
sedimentary