Dyed Agate
Silicon Dioxide (SiO2) with synthetic dyes
mineral
Category
Sedimentary (Artificial)
Browse sedimentary (artificial) specimens identified by the Rock Identifier community.
Blue Banded Agate (Dyed)
Silicon Dioxide (SiO2) - Chalcedony variety
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Yellow Quartz (Citrine type/Tumbled Quartz)
Silicon Dioxide (SiO2)
mineral
Man-made Metal Pin (Non-geological)
Antimony-Lead Alloy or Zinc/Brass Base with Electroplating
Metal Alloy / Manufactured Artifact
Turquoise (Blue Howlite / Magnesite imitation)
CuAl6(PO4)4(OH)8·4H2O (for natural Turquoise); Ca2B5SiO9(OH)5 (for Howlite)
mineral
Drill Core Sample
Cylindrical Rock Core (Specific mineralogy varies by extraction site)
Metamorphic (Likely Gneiss or Schist based on texture)
Banded Agate (Dyed Purple)
Agate (Variety of Chalcedony/Quartz), SiO2
mineral
Peridot
Olivine (Mg, Fe)2SiO4
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Blue Agate (Dyed)
Silicon Dioxide (SiO2) - Variety of Chalcedony
mineral
Blue Quartzite (Dyed)
Silicon Dioxide (SiO2) with inclusions
metamorphic
Prasiolite
Silicon Dioxide (SiO2)
mineral
Rough Quartz (var. Citrine or Yellow Quartz)
Silicon Dioxide (SiO2)
mineral
Amethyst (Cabochon)
Silicon Dioxide (SiO2) with iron impurities
mineral
Lemon Quartz (Orizaba/Citrinated Quartz)
Silicon Dioxide (SiO2) with iron impurities/treatment
mineral
Citrine
Silicon Dioxide (SiO2)
mineral
Quartz (Citrine variety)
Silicon Dioxide (SiO2)
mineral
Prasiolite
Silicon Dioxide (SiO2) with iron impurities
mineral
Dyed Purple Agate
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz
mineral
Dyed Agate (Tumbled)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
mineral
Blue Lace Agate
Chalcedony (SiO2) with trace impurities
mineral
White Quartz Sphere
Silicon Dioxide (SiO2)
mineral
Purple Dyed Agate Geode (Banded Chalcedony)
Silicon Dioxide (SiO2) - variety: Agate
mineral
Man-made Green Quartz (Lab-grown or Treated)
Silicon Dioxide (SiO2) with artificial coloration
mineral
Blue Agate (Dyed)
Silicon Dioxide (SiO2) with artificial pigment
mineral
Dyed Quartz (imitating Emerald/Green Quartz)
Silicon Dioxide (SiO2) with artificial pigment
mineral
Dyed Agate
Silicon Dioxide (SiO2) with artificial pigment
mineral
Slag (Industrial Glass/Metal Waste)
Artificial silicate/ferro-silicate byproduct
Mineraloid (Industrial byproduct)
Dyed Quartz (often sold as 'Blue Quartz' or 'Blue Agate')
Silicon Dioxide (SiO2) with artificial pigment
mineral
Pink Tumbled Agate (Dyed)
Silicon Dioxide (SiO2) with artificial dyes
mineral
Red Tiger's Eye
SiO2 (Silicon Dioxide) - Pseudomorph of Quartz after Crocidolite
mineral
![Dyed Alum or Dyed Quartz (Ornamental Crystal) (Silicon Dioxide (SiO2) or Potassium Alum [KAl(SO4)2·12H2O]) — mineral](https://media.rock.id/ecbd7acd-080b-49ec-9a66-4f7067b2e7d5-thumbnail.jpg)
Dyed Alum or Dyed Quartz (Ornamental Crystal)
Silicon Dioxide (SiO2) or Potassium Alum [KAl(SO4)2·12H2O]
mineral
Red Tiger's Eye
Pseudomorph of Macrocrystalline Quartz after Crocidolite (SiO2)
metamorphic
Red Chalcedony (likely dyed)
Chalcedony (a variety of Quartz), SiO2
Mineral (Cryptocrystalline Quartz)
Dyed Crackle Quartz (Green)
Quenching-treated Quartz (Silicon Dioxide, SiO2)
mineral
Agate (Dyed High-Grade Polished Slice)
Silicon dioxide (SiO2), Chalcedony crystal variety
mineral
Blue Lace Agate
Silicon Dioxide (SiO2) - Variety of Chalcedony
mineral
Blue Agate (Dyed Chalcedony)
Silicon Dioxide (SiO2)
mineral
Cream Marble (Speckled)
Metamorphosed Limestone (mainly CaCO3)
metamorphic
Cobalt Blue Slag Glass
Amorphous Silicon Dioxide (anthropogenic) with Cobalt additives
mineraloid
Blue Crackle Quartz (Dyed Quarzite)
Silicon Dioxide (SiO2) with artificial dye
Metamorphic (modified)