Titanium-Coated Hematite (Aura Hematite)
Titanium-bonded Hematite (Fe2O3 with a Ti coating)
mineral
Category
Sedimentary (Primary) With Artificial Modification
Browse sedimentary (primary) with artificial modification specimens identified by the Rock Identifier community.
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Green Banded Agate
Cryptocrystalline microcrystalline Quartz (SiO2)
sedimentary
Mixed rock and mineral collection
Multiple specimens; visible pieces may include quartz, calcite, agate/chalcedony, jasper, and dyed or coated materials
mineral
Dyed Agate
Agate (Silicon dioxide)
Mineral
Crackle Agate / Dyed Quartz
SiO2 (Silicon Dioxide)
mineral
Dyed Chalcedony (Agate)
Silicon Dioxide (SiO2) with artificial pigment
mineral
Blue Howlite (Dyed)
Calcium Borosilicate Hydroxide (Ca2B5SiO9(OH)5)
mineral
Dyed Howlite (Dyed Red)
Calcium Borosilicate Hydroxide (Ca2B5SiO9(OH)5)
mineral
Banded Agate (Dyed / Polished)
Microcrystalline Quartz (SiO2)
mineral
Rhinestone
Artificial Glass/Crystal
gemstone
Slag (Industrial Glass)
Artificial Vitreous Silicate
mineraloid (anthropogenic)
Porphyritic Basalt (likely artificially dyed or altered)
Basalt with plagioclase phenocrysts (likely treated)
igneous
Pink Dyed Agate
Silicon Dioxide (SiO2) with synthetic pigment
mineral
Blue-dyed Quartz Druzy
Silicon Dioxide (SiO2) with artificial pigment
mineral
Dyed Agate
Chalcedony (SiO2)
mineral
Dyed Agate / Painted Stone
Silicon Dioxide (SiO2) with artificial pigment
sedimentary (base), then artificial
Dyed Agate
Silicon Dioxide (Chalcedony with artificial colorant), SiO2
gemstone
Dyed Agate
SiO2
Mineral
Blue Agate Geode Slice
Silicon Dioxide (SiO2) - Chalcedony variety
mineral
Orange Calcite point
Calcite (Calcium Carbonate, CaCO3)
mineral
Clear Quartz Crystal
Silicon Dioxide (SiO2)
mineral
Titanium Quartz (Aura Quartz)
Silicon Dioxide (SiO2) treated with Titanium
mineral
Red Dyed Howlite
Calcium Borosilicate Hydroxide (Ca2B5SiO9(OH)5)
mineral
Pickled Dragon Eggs (Fictional Interpretation: Purple Agate or Amethyst Geodes)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
mineral
Tumbled brown jasper or chert pebble
Microcrystalline quartz (SiO₂), likely jasper/chert
sedimentary
Purple Agate (Dyed Chalcedony)
SiO2 (Silicon Dioxide) with organic dyes
mineral
Polished leopard jasper (likely ocean jasper)
Silicified microcrystalline quartz/chalcedony; mainly SiO₂ with iron-oxide inclusions
sedimentary
Dyed Quartz Geode
Silicon Dioxide (SiO2) with artificial purple dye
mineral
Ferrochrome Slag
Anthropogenic silicate/oxide glass (Complex silicate matrix with Cr-Fe-Si inclusions)
Industrial byproduct (often confused with igneous rocks or meteorites)
Hag Stone (Odin Stone / Adder Stone)
Perforated Pebble (commonly Chert, Mudstone, or Limestone)
sedimentary
Dyed Agate Slice
Silicon Dioxide (SiO2) - Chalcedony variety
mineral
Ceramic or Polished Stone Heart (Anthropogenic Material)
Glazed Ceramic (Silicon Dioxide based coating on Alumina Silicate body) or Polished Limestone/Marble (Calcium Carbonate, CaCO3)
Synthetic/Anthropogenic Mineraloid
Dyed Agate Geode
Silicon Dioxide (SiO2) - Chalcedony variety
mineral
Dyed Pink Agate Slice
Cryptocrystalline variety of Quartz (SiO2)
mineral
Blue Agate (Dyed Chalcedony)
Silicon Dioxide (SiO2)
mineral
Dyed blue howlite or magnesite (tumbled stone)
Howlite: Ca₂B₅SiO₉(OH)₅; commonly sold dyed blue to imitate turquoise
mineral
Likely tumbled sandstone or limestone
Quartz-rich sandstone (possibly calcarenite/limestone)
sedimentary
Purple Chalcedony (likely dyed Agate)
Silicon Dioxide (SiO2)
mineral
Dyed Blue Agate Slice
Chalcedony (Silicon Dioxide, SiO2)
mineral
Aqua Aura Quartz
Titanium/Gold-coated Silicon Dioxide (SiO2)
mineral
Rainbow chalcopyrite (“peacock ore”)
Chalcopyrite, CuFeS₂, commonly artificially tarnished or heat-treated
mineral
Dyed Purple Agate Sliced Tablet
Silicon Dioxide (SiO2), variety Chalcedony
gemstone