Dyed Agate
SiO2
Mineral
Category
Sedimentary (Primary) With Artificial Modification
Browse sedimentary (primary) with artificial modification specimens identified by the Rock Identifier community.
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Pink Dyed Agate (Pink Agate Slice)
Silicon Dioxide (SiO2) - Chalcedony / Cryptocrystalline Quartz
mineral
Green Chalcedony (likely Green Agate or Chrysoprase)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Mineral
Pink Satin Spar (Satin Spar Selenite Dyed)
Gypsum (CaSO4·2H2O)
mineral
Man-made Dyed Aura Quartz
Silicon Dioxide (SiO2) with metallic coating/dye
mineral
Citrine Quartz
Silicon Dioxide (SiO2)
mineral
Graphite
Graphite (Carbon, C)
Mineral
Dyed Agate
SiO2 (Silicon Dioxide) - Chalcedony variety
Mineral
Pink Dyed Agate
Chalcedony (SiO2) with artificial dyes
mineral
Blue Dyed Agate
Chalcedony (SiO2) with artificial pigment
mineral
Slag (Industrial Byproduct)
Artificial silicate/iron byproduct
Mineral description (Anthropogenic material)
Dyed Blue Agate Slice
Silicon Dioxide (SiO2)
mineral
Blue Agate Geode (Dyed)
Cryptocrystalline Quartz (SiO2)
mineral
Banded Calcite (often sold as 'Mexican Onyx')
Calcite (Calcium Carbonate - CaCO3)
sedimentary
Pink Anthracite Coal (dyed)
Anthracite Coal (Artificially Colored)
Sedimentary Rock (Altered)
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Blue Banded Agate
Chalcedony (Silicon Dioxide, SiO2)
mineral
Blue Banded Agate (Dyed)
Silicon Dioxide (SiO2) - variety of Chalcedony
mineral
Dyed Pink Agate
Silicon Dioxide (SiO2) - variety Chalcedony
mineral
Dalmatian Stone
Peralkaline Feldsphathic Igneous Rock
igneous
Slag (Industrial Byproduct)
Ferrous/Non-ferrous Silicate
igneous (artificial/anthropogenic)
Dyed Agate
Chalcedony (SiO2)
Mineral
Dyed Dalmatian Stone
Aplite (Alkali-feldspar granite) with Arfvedsonite
igneous
Yellow Quartz (Citrine type/Tumbled Quartz)
Silicon Dioxide (SiO2)
mineral
Pink Dyed Agate
Silicon Dioxide (SiO2) - Variety Agate
mineral
Red Tigers Eye (Bull's Eye)
SiO2
Mineral
Amethyst (Agate/Chalcedony variety)
Silicon Dioxide (SiO2) with iron impurities
mineral
Carnelian and Dyed Agate
Chalcedony (Silicon Dioxide, SiO2)
mineral
Blue Agate (Dyed)
Silicon Dioxide (SiO2) - Variety of Chalcedony
mineral
Dyed Pumice
Vesicular Rhyolite (Artificial Coloration Addition)
igneous
Dyed Quartzite
Tumbled Metamorphosed Quartz (SiO2) with artificial pigment
metamorphic
Dyed Quartzite
Metamorphosed Quartz (SiO2) with synthetic pigment
metamorphic
Peridot
Olivine ((Mg, Fe)2SiO4)
mineral
Silicon Carbide (Carborundum)
Moissanite (SiC), though mostly synthetic
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
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Peridot
Olivine (Mg, Fe)2SiO4
mineral
Magnetic Hematite
Magnetized Hematite (an iron oxide mineral, Fe2O3, that has undergone magnetization)
Mineral
Slag
Ferrous Slag (Amorphous calcium-magnesium-aluminum silicates)
igneous (artificial/anthropogenic)
Blue Quartzite (Dyed)
Silicon Dioxide (SiO2) with inclusions
metamorphic